Sunday, December 11, 2016

[PaleoMammalogy • 2016] A New Skull of the Fossil Porpoise Numataphocoena yamashitai (Cetacea: Phocoenidae) from the upper part of the Horokaoshirarika Formation (lower Pliocene), Numata Town, Hokkaido, Japan, and Its Phylogenetic Position


Numataphocoena yamashitai 
 Ichishima & Kimura, 2000 

Art work by T. Shinmura  Palaeo-Electronica.org

ABSTRACT

An early Pliocene porpoise, Numataphocoena yamashitai from Hokkaido, Japan, is known from the holotype, a fairly well-preserved skeleton with an incomplete skull and a referred earbone. A new skull referred to Numataphocoena yamashitai found from almost the same locality as the holotype is interesting because it expands knowledge of skull morphology and improves the diagnosis of this taxon. Numataphocoena yamashitai differs from other phocoenids in having the characteristic feature in the maxilla associated with the posterior dorsal infraorbital foramen, narrower and sharper anterior part of the internal acoustic meatus, and a robust anterior process of the periotic. A new cladistic analysis places Numataphocoena yamashitai adjacent to Haborophocoena toyoshimai and Haborophocoena minutus, among a clade of early branching phocoenids, all of which are chronologically and geographically close to each other. The new skull is probably a younger individual because it is about 80% the size of that of the holotype and it shows closed but unfused sutures. Our description of this specimen helps to understand the intraspecies variation of the extinct species Numataphocoena yamashitai.

Key words: skull; Phocoenidae; phylogeny; maxillary terrace; ontogeny; intraspecies variation


FIGURE 6. Life restoration of Numataphocoena yamashitai.
Art work by Tatsuya Shinmura (Ashoro Museum of Paleontology). 


CONCLUSION: 
The new referred skull (NFL 2074) of Numataphocoena yamashitai from the upper part of the Horokaoshirarika Formation (early Pliocene), Numata, Hokkaido, Japan, adds diagnostic characters of the species, recognizes variations among the species and reveals the phylogenetic position among the Phocoenidae. Our cladistic analysis places Numataphocoena yamashitai adjacent to Haborophocoena toyoshimai and Haborophocoena minutus, among a clade of early branching phocoenids, all of which are chronologically and geographically close to each other, being all from Hokkaido. Numataphocoena yamashitai differs from other phocoenids in having a maxillary terrace, narrower and sharper anterior part of the internal acoustic meatus, and a robust anterior process of the periotic. NFL 2074, which is about 80% size of the holotype, NFL 7, is probably younger than the physically mature holotype. NFL 2074 does not have a well-developed nuchal crest like the holotype skull, which is probably the result of intraspecific variation.


 Tanaka, Yoshihiro and Ichishima, Hiroto. 2016. A New Skull of the Fossil Porpoise Numataphocoena yamashitai (Cetacea: Phocoenidae) from the upper part of the Horokaoshirarika Formation (lower Pliocene), Numata Town, Hokkaido, Japan, and Its Phylogenetic Position. Palaeontologia Electronica. 19.3.49A; 1-28.  



Abstract
A new periotic of Numataphocoena yamashitai from the upper part of the Horokaoshirarika Formation (lower Pliocene), Numata, Hokkaido, Japan shows younger ontogenetic features in comparison to the matured holotype (NFL 7). The referred specimen of N. yamashitai is smaller (approximately 90% in size) than the physically and sexually matured holotype periotic. The holotype (NFL 7) and referred specimen (NFL 2617) show several differences owing to ontogenetic changes, such as: the holotype (NFL 7) has a more strongly swollen medial part of the anterior process, blunt anterior keel, rounded anterodorsal angle, deeper and clearer anterior incisure, more rounded pars cochlearis, deeper and narrower hiatus epitympanicus rather than a flat area, longer posterior process with an extra edge posterolaterally. N. yamashitai differs from other fossil phocoenids in having a narrower and sharper anterior part of the internal acoustic meatus and a robust anterior process. Haborophocoena toyoshimai similarly has a relatively narrow internal acoustic meatus and a robust anterior process, compared with other fossil phocoenids. Between N. yamashitai and H. toyoshimai, N. yamashitai has a narrower internal acoustic meatus and a more robust anterior process. These similarities imply a close relationship between Numataphocoena and Haborophocoena. The new specimen provides diagnostic features and insight into ontogenetic variation of N. yamashitai.

 Keywords: fossil, ontogeny, periotic, Phocoenidae


Yoshihiro Tanaka. 2016. A New and Ontogenetically Younger Specimen of Numataphocoena yamashitai from the Upper Part of the Horokaoshirarika Formation (Lower Pliocene), Numata, Hokkaido, Japan. Paleontological Research. 20(2); 105-115. DOI: 10.2517/2015PR026

H. Ichishima and M. Kimura. 2000. A New Fossil Porpoise (Cetacea; Delphinoidea; Phocoenidae) from the early Pliocene Horokaoshirarika Formation, Hokkaido, Japan. Journal of Vertebrate Paleontology. 20(3); 561-576. DOI: 10.1671/0272-4634(2000)020[0561:ANFPCD]2.0.CO;2

[Paleontology • 2016] Litorosuchus somnii • A New Armored Archosauriform (Diapsida: Archosauromorpha) from the Marine Middle Triassic of China, with Implications for the Diverse Life Styles of Archosauriforms Prior to the Diversification of Archosauria


 Litorosuchus somnii 
 Li, Wu, Zhao, Nesbitt, Stocker & Wang, 2016  


Abstract
Reptiles have a long history of transitioning from terrestrial to semi-aquatic or aquatic environments that stretches back at least 250 million years. Within Archosauria, both living crocodylians and birds have semi-aquatic members. Closer to the root of Archosauria and within the closest relatives of the clade, there is a growing body of evidence that early members of those clades had a semi-aquatic lifestyle. However, the morphological adaptations to a semi-aquatic environment remain equivocal in most cases. Here, we introduce a new Middle Triassic (245–235 Ma) archosauriform, Litorosuchus somnii, gen. et sp. nov., based on a nearly complete skeleton from the Zhuganpo Member (Ladinian [241–235 Ma]) of the Falang Formation, Yunnan, China. Our phylogenetic analyses suggest that Litorosuchus is a stem archosaur closely related to the aberrant Vancleavea just outside of Archosauria. The well-preserved skeleton of L. somnii bears a number of morphological characters consistent with other aquatic-adapted tetrapods including: a dorsally directed external naris, tall neural spines and elongate chevrons in an elongated tail, a short and broad scapula, webbed feet, long cervical vertebrae with long slender ribs, and an elongated rostrum with long and pointed teeth. Together these features represent one of the best-supported cases of a semi-aquatic mode of life for a stem archosaur. Together with Vancleavea campi, the discovery of L. somnii demonstrates a growing body of evidence that there was much more diversity in mode of life outside Archosauria. Furthermore, L. somnii helps interpret other possible character states consistent with a semi-aquatic mode of life for archosauriforms, including archosaurs.

Keywords: Adaptation; Morphology; Phylogeny; Reptile; Semi-aquatic


Systematic paleontology
Diapsida (Osborn 1903).
Archosauromorpha (von Huene 1946) sensu (Benton 1985).

Archosauriformes (Gauthier et al. 1988).

Litorosuchus somnii gen. et sp. nov.

Etymology: From Latin litoralis, indicating the coastal region where the archosauriform may have lived and Greek soukhos crocodile. From Latin somnium —“dream” in reference to a dream the first author (Li) had the day after he searched for a name for the animal, in which he saw an archosauriform wandering on the beach.




  

Holotype: IVPP V 16978, a nearly complete skull and skeleton embedded in a slab of limestone with much of its right lateral side exposed.

Locality and horizon: Jiyangshan, west of Huangnihe River, southeast Fuyuan County, Yunnan Province, China; Zhuganpo Member of the Falang Formation, Late Middle Triassic (Ladinian (241–235 Ma)) (Chen 1985).

Diagnosis: A medium-sized reptile (snout to tip of the tail length = ∼2.0 m), differing from other non-archosaur archosauriforms in having the following unique combination of character states: premaxilla bearing only two anteriorly positioned teeth with a short diastema anterior to and a long diastema posterior to the teeth, respectively; posterodorsal (maxillary) process of the premaxilla long and extending just posteriorly; nasal process of the premaxilla extending posteriorly beyond the posterodorsal margin of the external naris; large caniniform tooth in each tooth-bearing bone (shared with V. campi); midline length of the snout (measured from anterior edge of the orbit to the anterior tip of the premaxilla) more than twice that of the post-snout region (shared with species of Chanaresuchus, Q. mixtus, and D. fuyuanensis); T-shaped prefrontal with an elongate and bar-like descending process extending as ventrally as the lacrimal; lacrimal excluded by the prefrontal from the orbit; interfenestral region of the skull roof very narrow, less than one fifth of interorbital width; body completely covered by variously shaped osteoderms in certain regions (e.g., spine-like dorsal osteoderms on caudal vertebrae 10 to 13); tail long, about 60 % of the total length; vertical ridge present on the lateral surface of the neural spine of caudal vertebrae 9 to 35; cervical ribs slender and elongate; astragalus-calcaneum contact a simple butt joint, calcaneal tuber nearly absent. Asterisks denote autapomorphies.




Chun Li, Xiao-chun Wu, Li-jun Zhao, Sterling J. Nesbitt, Michelle R. Stocker and Li-Ting Wang. 2016.  A New Armored Archosauriform (Diapsida: Archosauromorpha) from the Marine Middle Triassic of China, with Implications for the Diverse Life Styles of Archosauriforms Prior to the Diversification of Archosauria.
The Science of Nature [Naturwissenschaften].  103: 95. DOI: 10.1007/s00114-016-1418-4


    

[Ichthyology • 2016] Trichomycterus giarettai • A New Species of the Catfish Genus Trichomycterus (Siluriformes: Trichomycteridae) from the Paranaíba Basin, Central Brazil


Trichomycterus giarettai 
 Barbosa & Katz, 2016 

Abstract
Trichomycterus giarettai, new species, from a small river in Cumari municipality, Central Brazil is described. It is hypothesized to be closely related to species of T. brasiliensis complex by possessing the opercular odontodes disposed obliquely on the patch. Trichomycterus giarettai is diagnosed by the distribution of infraorbital pores, body width, caudal peduncle width, number of vertebrae, branchiostegal rays, dorsal and ventral procurrent rays, opercular and interopercular odontodes, length of the nasal barbels, and pelvic fin insertion.

Key words: Catfishes, Goiás, Neotropical, Trichomycterinae, systematics, taxonomy.


Fig. 1. Trichomycterus giarettai, UFRJ 10109, preserved holotype, 69.4 mm SL; Brazil: Goiás: Município de Cumari.
 Photo by A.M.Katz.  

Distribution. Known only from a small stream, tributary of the upper rio Paranaíba basin, Central Brazil.

Etymology. The name “giarettai” was given in honor to the herpetologist A. Giaretta, that first collected the new species in the field. 




M. A. Barbosa and A. M. Katz. 2016. A New Species of the Catfish Genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the Paranaíba Basin, Central Brazil. Vertebrate Zoology. 66(3); 261-265. 


Resumo: Trichomycterus giarettai, espécie nova, de um pequeno riacho no município de Cumari, Brasil Central, é descrito. Ele é hipotetizado como proximamente relacionado as espécies do complexo Tbrasiliensis por possuir a distribuição diagonal dos odontódeos na placa opercular. Trichomycterus giarettai é diagnosticado pela distribuição dos poros infraorbitais, largura do corpo, largura do pedúnculo caudal, número de vértebras, raios branquiostegais, raios procorrentes ventrais e dorsais,odontódeos operculares e interoperculares, comprimento dos barbilhões nasais e inserção da nadadeira pélvica.



[Botany • 2015] Argyreia albiflora | เครือพิสุทธิ์ • A New Species (Convolvulaceae) from Chiang Mai, northern Thailand


Argyreia albiflora 
Staples & Traiperm   

Abstract

A new species of Argyreia (Convolvulaceae) from Thailand is described and illustrated: Argyreia albiflora. The morphological distinctions of this new species and its relationships with allied species are discussed. Micromorphological evidence is presented using scanning electron microscopy (SEM) and light microscopy (LM) demonstrating that microscopic features of the upper leaf surface are useful in separating species that are similar on a macromorphological level.

Keywords: Argyreia albiflora, Argyreia wallichii, cutin, leaf anatomy, leaf epidermis




George W. Staples. Paweena Traiperm and Janeny Chow. 2015. Another New Thai Argyreia Species (Convolvulaceae). Phytotaxa. 204(3). DOI: 10.11646/phytotaxa.204.3.5
เครือพิสุทธิ์ พืชวงศ์ผักบุ้งชนิดใหม่ของโลก


[Ecology / Paleontology • 2016] Patterns, Causes, and Consequences of Anthropocene Defaunation


Figure 3: Disproportionate impacts of human harvesting the largest individuals and the largest species in a community first. Such harvesting causes local declines in abundance of the largest individuals, inducing population-scale downsizing and many population-scale impacts. This decline often proceeds to local extinction of populations of large-sized species. Replicated across regions, this local extinction often progresses to global extinction, such that large body size is a leading predictor of global extinction risk.
Megafauna images courtesy of Fiona A. Reid. 

ABSTRACT
Anthropocene defaunation, the global extinction of faunal species and populations and the decline in abundance of individuals within populations, has been predominantly documented in terrestrial ecosystems, but indicators suggest defaunation has been more severe in freshwater ecosystems. Marine defaunation is in a more incipient stage, yet pronounced effects are already apparent and its rapid acceleration seems likely. Defaunation now impacts the planet's wildlife with profound cascading consequences, ranging from local to global coextinctions of interacting species to the loss of ecological services critical for humanity. Slowing defaunation will require aggressively reducing animal overexploitation and habitat destruction; mitigating climate disruption; and stabilizing the impacts of human population growth and uneven resource consumption. Given its omnipresence, defaunation should receive status of major global environmental change and should be addressed with the same urgency as deforestation, pollution, and climatic change. Global action is needed to prevent defaunation's current trajectory from catalyzing the planet's sixth major extinction.

Keywords: animal conservation, defaunation cascades, animal overexploitation, terrestrial fauna, marine fauna, freshwater fauna




Hillary S. Young, Douglas J. McCauley, Mauro Galetti and Rodolfo Dirzo. 2016. Patterns, Causes, and Consequences of Anthropocene Defaunation. Annual Review of Ecology, Evolution, and Systematics.  47; 333-358. DOI: 10.1146/annurev-ecolsys-112414-054142


[Ichthyology • 2016] Moenkhausia parecis • A New Species of Moenkhausia Eigenmann (Characiformes: Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira Basin, Brazil


Moenkhausia parecis 
Ohara & Marinho, 2016

ABSTRACT

A new species of Moenkhausia is described from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Rondônia State, Brazil. Among congeners, the new species is similar to Moenkhausia chlorophthalma, M. cotinho , M. lineomaculata , M. plumbea, and M. petymbuaba by having dark blotches on the anterior portion of the body scales, which are absent in the remaining species of the genus. The new species differs from aforementioned species by possessing blue eyes in life, 15-18 branched anal-fin rays, and a well-defined, round caudal-peduncle spot that does not reach the upper and lower margins of the caudal peduncle and does not extend to the tip of the middle caudal-fin rays.

Key words: Amazon basin; Fish; Moenkhausia cotinho; Ostariophysi; Taxonomy


Diagnosis. Moenkhausia parecis is distinguished from all congeners, except M. clorophthalma Sousa, Netto-Ferreira & Birindelli, 2010, some populations of M. cotinho Eigenmann, 1908(see Discussion), M. lineomaculata [Dagosta, Marinho & Benine, 2015], M. petymbuaba [Lima & Birindelli, 2009], and M. plumbea [Sousa, Netto-Ferreira & Birindelli, 2010] by the presence of a dark blotch on the anterior portion of each scale of the second to seventh longitudinal series (vs. pigmentation absent or, when present, concentrated at the posterior margin of scales, forming a reticulate pattern). Moenkhausia parecis can be readily distinguished from all aforementioned species by having completely blue eyes in life (vs. green in M. clorophthalma, mostly green with some red in M. petymbuaba, lower portion blue and upper portion orange in M. lineomaculata, clear or red in M. cotinho, and clear, with a longitudinal dark stripe in M. plumbea). Additionally, it is distinguished from M. clorophthalma, M. petymbuaba and M. plumbea by having 15-18 (rarely 18) branched anal-fin rays (vs. 18-24), from M. cotinho and M. lineomaculata by having a smaller caudal-peduncle spot, with only the base of the middle caudal-fin rays pigmented (vs. blotch larger, base of all caudal-fin rays pigmented in M. cotinho and M. lineomaculata, except the outermost unbranched rays in some specimens of M. lineomaculata) and by the absence of a light area preceding caudal-peduncle spot (vs . presence of a light area preceding caudal-peduncle spot). It can be further distinguished from M. clorophthalmaM. plumbea and M. plumbea by having a well-defined, round caudal-peduncle spot, that does not extend to the tip of the middle caudal-fin rays (vs . caudal-peduncle spot absent or poorly defined in M. clorophthalma and M. plumbea or caudal-peduncle spot confluent with longitudinal stripe on body, reaching the tip of middle caudal-fin rays in M. plumbea).


Etymology. The specific name parecis refers to the Chapada dos Parecis (plateau including the type locality), an important watershed that separates tributaries of three basins: rio Madeira, rio Tapajós and rio Paraguai. A noun in apposition.

Distribution. Moenkhausia parecis is known only from its type locality, a headwater tributary of igarapé Piracolina, itself a tributary of the upper rio Machado at Chapada dos Parecis, rio Madeira basin, about 9 km south of Vilhena, near the border of Rondônia and Mato Grosso States, Brazil (Fig. 3). Moenkhausia parecis is possibly an additional species endemic to the rivers draining the Chapada dos Parecis(see list in Ohara & Lima, 2015).


Ecological notes. The type locality of Moenkhausia parecis is located at 585 m above sea level on the Chapada dos Parecis. It is a small "terra-firme igarapé" (= highland creek) with little preserved riparian vegetation and surrounded by large plantation fields (mostly soy and corn), near Vilhena, Mato Grosso. It is a clear water stream 1.5-2.5 m wide and 0.3-0.8 m deep, with swift currents, and a bottom composed of sand and dead leaves (Fig. 4). During snorkeling, Moenkhausia parecis was observed in small groups of 10-15 individuals swimming in midwater. Syntopic species included Ancistrus verecundus Fisch-Muller, Cardoso, da Silva & Bertaco, 2005, Bryconops piracolina Wingert & Malabarba, 2011, Cetopsorhamdia sp. 3 (cf. Bockmann & Slobodian, 2013: 25), Corydoras sp., Hyphessobrycon lucenorum Ohara & Lima, 2015, Hyphessobrycon aff. melonostichos Carvalho & Bertaco, 2006 and Pyrrhulina sp. The stomach contents of the four (c&s) paratypes included ants, scales, unidentified insect fragments, seeds, unidentified vegetal fragments and sediments.

Conservation status. Despite intensive and broad collecting efforts in the rio Madeira basin during 2009 to 2013 (Queiroz et al., 2013) and recent surveys conducted in the southeastern portion of Rondônia State and northwest of Mato Grosso State undertaken in 2010-2011 and 2013-2014, Moenkhausia parecis was only collected at its type locality. Additionally, examination of several fish collections failed to reveal additional specimens. Thus, it is possible that the species is restricted to the upper rio Machado, at the Chapada dos Parecis. The type locality of M. parecis is a small forest fragment near Vilhena town that is surrounded by farms. According to the International Union for Conservation of Nature (IUCN) categories and criteria (IUCN Standards and Petitions Subcommittee, 2014), Moenkhausia parecis might be considered as 'Vulnerable (D2)', based on its occupation area (AOO) apparently less than 20 km2 and the plausible future threat (agricultural development and expansion of Vilhena town around its very restricted distribution) that could lead the species to become critically endangered or extinct.


 Willian M. Ohara and Manoela M F Marinho. 2016. A New Species of Moenkhausia Eigenmann (Characiformes: Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira Basin, Brazil. Neotropical Ichthyology [Neotrop. ichthyol.]. 14(1); DOI: 10.1590/1982-0224-20150041

RESUMO: Uma espécie nova de Moenkhausia é descrita do alto rio Machado na Chapada dos Parecis, bacia do rio Madeira, Rondônia, Brasil. Entre as congêneres, a espécie nova é semelhante à Moenkhausia chlorophthalma , M. cotinho , M. lineomaculata , M. plumbea e M. petymbuaba por ter manchas escuras na região anterior das escamas, que estão ausentes nas demais espécies do gênero. A espécie nova difere das espécies mencionadas acima por possuir olhos azuis em vida, 15-18 raios ramificados na nadadeira anal e uma mancha arredondada bem definida no pedúnculo caudal, que não alcança o limite superior e inferior do pedúnculo caudal, e não se estende sobre os raios medianos da nadadeira caudal.

[Herpetology • 2016] Species Delimitation Methods Put Into Taxonomic Practice: Two New Madascincus Species, M. miafina & M. pyrurus, formerly allocated to Historical Species Names (Squamata, Scincidae)


Madascincus miafina sp. n., a species from dry areas of northern Madagascar, morphologically very similar to M. polleni    Madascincus pyrurus sp. n., a montane species endemic to the central highlands of Madagascar. Phylogenetically, M. pyrurus is the sister species of M. igneocaudatus

 Miralles, Köhler, Glaw & Vences, 2016. DOI: 10.3897/zse.92.9945 

Abstract
In a previous study, Miralles and Vences (2013) compared seven different methods of species delimitation applied to the genus Madascincus. While focusing on methodological aspects their study involved an extensive data set of multilocus DNA sequences and of comparative morphology. On this basis they emphasized the need of revising the taxonomy of Madascincus, and revealed the existence of at least two well-supported candidate species. The present paper provides formal descriptions of these two taxa: (1) Madascincus miafina sp. n., a species from dry areas of northern Madagascar, morphologically very similar to M. polleni (although both species are not retrieved as sister taxa), and (2) Madascincus pyrurus sp. n., a montane species occurring >1500 m above sea level, endemic to the central highlands of Madagascar (Ibity and Itremo Massifs). Phylogenetically, M. pyrurus is the sister species of M. igneocaudatus, a taxon restricted to the dry littoral regions of the south and south-west of Madagascar in lowlands <500 m above sea level. To facilitate future taxonomic work, we furthermore elaborated an identification key for species of Madascincus. Finally, some aspects of the biogeographic patterns characterising the different main clades within the genus Madascincus are provided and discussed for the first time in the light of a robust phylogenetic framework.

Key Words: Madascincus miafina sp. n., Madascincus pyrurus sp. n., Madagascar, phylogeny, morphology, integrative taxonomy, species complex, biogeography


Figure 4.: Photographic plate showing most of the recognized species of Madascincus (picture not available for Mmacrolepis), highlighting the chromatic polymorphism (red tail and brown tail morphs) for M. miafina sp. n., M. pyrurus sp. n. and M. igneocaudatus. Picture I depicts the sole specimen known from Kirindy that in Glaw and Vences (2007) was assigned to a candidate species M. sp. “vitreus”, and O depicts a specimen that these authors assigned to a candidate species M. sp. “baeus”.




Aurélien Miralles, Jörn Köhler, Frank Glaw and Miguel Vences. 2016. Species Delimitation Methods Put Into Taxonomic Practice: Two New Madascincus Species formerly allocated to Historical Species Names (Squamata, Scincidae).
Zoosystematics and Evolution. 92(2); 257-275. DOI: 10.3897/zse.92.9945

[Ichthyology • 2016] Leptobotia bellacauda • A New Species of Loach (Cypriniformes: Botiidae) from the lower Yangtze Basin in China


Leptobotia bellacauda
Bohlen, & Šlechtová, 2016


Abstract

A new species, Leptobotia bellacauda is described from the lower Yangtze River basin. The new species is distinguished from all other species of Leptobotia by a combination of the following characters: body plain brown, prominent black bar in caudal fin, dorsal half of head dusky black, ventral half of head cream colour, eye well developed, lobes of caudal fin rounded, origin of pelvic fins beneath or anterior to dorsal-fin origin, and pectoral fin in adult males enlarged, with numerous tubercles.

Keywords: Pisces, Morphology, taxonomy, Anhui, Shitai, Ningguo, sexual dimorphism


Bohlen, J. and  Šlechtová, V. 2016. Leptobotia bellacauda, A New Species of Loach from the lower Yangtze Basin in China (Teleostei: Cypriniformes: Botiidae).
  Zootaxa.  4205(1);  DOI: 10.11646/zootaxa.4205.1.5


[Ichthyology • 2016] Microglanis nigrolineatus • A New Species (Pseudopimelodidae) from northwestern Argentina


Microglanis nigrolineatus 
Terán, Jarduli, AlonsoMirande & Shibatta, 2016  

 paratype [CI- FML6595from Quebrada Colorada stream, Bermejo River basin, Salta province, Argentina

Microglanis nigrolineatus, new species, is described from streams of Bermejo River basin, northwestern Argentina. It is distinguished from all congeners by a combination of characters including a unique coloration pattern: a thin dark line that runs along middle body from vertical line through dorsal-fin origin to end of adipose fin, delimiting two dark-brown areas ending in a dark blotch crossing entire body depth just anterior to caudal-fin origin and dorsal region of head uniformly dark, lacking a paler area on nuchal region. Also, thorn serrae on anterior margin of pectoral-fin spine are short.


Fig. 1. Microglanis nigrolineatus, CI-FML 6596, holotype, 32.5 mm SL; Argentina: Salta province: Quebrada Colorada stream, Bermejo River basin. 

Fig.2.Microglanis nigrolineatus, CI- FML6595, paratype, 43.6mm SL; live specimen, before fixation; Argentina: Salta province: Quebrada Colorada stream, Bermejo River basin.  

Fig. 5. Type locality: Quebrada Colorada stream, Bermejo River basin, Salta, Argentina. May 2015. 

Fig. 4. Northwestern Argentina, showing the distribution of Microglanis nigrolineatus, type locality at Quebrada Colorada stream, Bermejo River basin. , paratype localities. 



Terán, Guillermo E., Lucas R. Jarduli, Felipe Alonso, J. Marcos Mirande and Oscar A. Shibatta. 2016. Microglanis nigrolineatus, A New Species from northwestern Argentina (Ostariophysi: Pseudopimelodidae). Ichthyological Exploration of Freshwaters. 27(3);  193-202


Microglanis nigrolineatus, nueva especie, se describe de arroyos de la cuenca del Río Bermejo, Noroeste de Argentina. Esta nueva especie se distingue de los congéneres por una combinación de caracteres que incluyen un patrón de coloración único: una delgada línea oscura que atraviesa longitudinalmente la parte media del cuerpo, que va desde la aleta dorsal hasta el final de la adiposa delimitando dos áreas pardo oscuras que terminan en una mancha negra que atraviesa toda la altura del cuerpo justo anterior a la aleta caudal, y la región dorsal de la cabeza uniformemente oscura, sin un área más clara en la región nucal. Además, los ganchos en el margen anterior de la espina pectoral son cortos.


"Microglanis nigrolineatus, a new species from northwestern Argentina (Ostariophysi: Pseudopimelodidae)"
Guillermo E. Teran, Lucas R. JarduliFelipe Alonso, J. Marcos Mirandeand Oscar A. Shibatta.
Ichthyol. Explor. Freshwaters, Vol. 27, No. 3, pp. 193-202, 6 figs., 2 tabs., November 2016. ISSN 0936-9902
Artículo completo (versión preliminar): https://goo.gl/HpS9Xv

Saturday, December 10, 2016

[Botany • 2015] Zingiber hainanense • A New Species (Zingiberaceae) from Hainan, China


Zingiber hainanense 
 Y.S. Ye, L. Bai & N.H. Xia 


ABSTRACT

Zingiber hainanense (Zingiberaceae), a new species from Hainan, China, is described and illustrated. It is compared to two most similar members from Z. sect. Cryptanthium, Z. guangxiense from Guangxi, China and Z. kawagoii, an endemic species from Taiwan, China. Zingiber hainanense differs from Z. guangxiense mainly by labellum and staminodes being purple red (vs. yellowish white throughout in Z. guangxiense), and differs from Z. kawagoii by labellum and lateral staminodes being linear or narrowly ovate (vs. obovate-oblong in Z. kawagoii). The pollen morphology and chromosome number count as well as a color plate of the new species are also presented in this study.

Keywords: Angiospermae; Liliopsida; Zingiberidae; Zingiberales; Zingiberaceae, Monocots, China



 Yu-Shi Ye, Lin Bai and Nianhe Xia. 2015 Zingiber hainanense (Zingiberaceae), A New Species from Hainan, China.   PHYTOTAXA. 217(1):73. DOI:  10.11646/phytotaxa.217.1.6


[Botany • 2010] Elettariopsis wandokthong Elettariopsis Baker (Zingiberaceae) in Thailand-A New Species and A New Record


Elettariopsis wandokthong 
Picheans. &  Yupparach  

ABSTRACT
 Six taxa of Elettariopsis Baker (Zingiberaceae) were previously accounted for Thailand. In this paper, Elettariopsis wandokthong, a new species from Thailand, is described and illustrated. Also, the distribution of Emonophylla (Gagnep.) Loes. in Thailand is reported here for the first time with full description and illustration. Key to species currently enumerated for Thailand is also provided.

KEY WORDS: Zingiberaceae, Thailand, Elettariopsis wandokthong, new species, Elettariopsis monophylla, new record.




Diagnose: Elettariopsidi trilobae similis, foliis 2-4 lanceolatis ad oblongis vel ellipticis utrinque glabris, ligula 1-2 mm longa pubescenti, apice bilobo, calycis tubo corollae tubo longiore pubescenti, ovario pubescenti differt.
Distribution: This new species can only be found in the type location. However, it is widely cultivated in Thailand.

 Ecology: The new species grows under the shade of dried deciduous forest, at the altitude of 62-240 m.

 Vernacular names: Wan Dokthong (วานดอกทอง), Wan Maha Saneh (วานมหาเสนห),  彎斗松擬荳蔻 (Chinese new name).

 Ethnobotany: This new taxon is believed to process a magical power, and therefore, it is used as a good-luck charm. The Thai names imply magical seductive power. The plants are grew in pots, and put in front of shops believing that they will help attracting customers, especially when the plant is in bloom (usually as early as January to early May). The rhizomes of this taxon are also used as one of the ingredients for making “magical herbal charming oil” or “magical charming lip balm”, believing that after applying it to one’s body (oil) or lips (lip balm), it will help attracting the targeted opposite sex, particularly women.


 Chayan Picheansoonthon and Piyapong Yupparach. 2010.  Further Study on the Elettariopsis Baker (Zingiberaceae) in Thailand-A New Species and A New Record. Taiwania. 55(4); 335-341. 
Orawan Theanphong, Thatree Phadungcharoen, Thaya Jenjittikul and Withawat Mingvanish. 2016. Essential Oil Composition of Elettariopsis wandokthong Picheans. & Yupparach Rhizome from Thailand.  BHST [Bulletin of Health Science and Technology] . 14(1); 30-35. 

[Crustacea • 2013 “2015”] Six New Species of Freshwater Crabs of the Genera Microthelphusa & Fredius (Decapoda: Pseudothelphusidae) from Pantepui, Venezuela


Plate 2. Dorsal view of the cephalothorax of six freshwater crab new species: A.- Microthelphusa aracamuniensis, n. sp.; B.- Mmarahuacaensis, n. sp.; C.- Mguaiquinimaensis, n. sp.; D.- M. maigualidaensis, n. sp.; E.- Mroraimaensis,n. sp.; F.- Fredius cuaoensis,n. sp.  
Suárez, 2013 “2015”.  DOI:  10.5281/zenodo.18333

Abstract

Six new species of  pseudothelphusid crabs (Crustacea: Decapoda: Brachyura) are described from several rivers of the Pantepui region of Venezuela, in the states of Amazonas and Bolívar: Microthelphusa aracamuniensis, n. sp.M. guaiquinimaensis, n. sp.M. maigualidaensis, n. sp., M. marahuacaensis, n. sp.M. roraimaensis, n. sp., and Fredius cuaoensis, n. sp.

Keywords: Brachyura, Cerro Guaiquinima, Cerro Marahuaca, Fredius, Microtelphusa, Monte Aracamuni, Serranía de Mai-gualida, Río Cuao, Roraima.

Plate 2. Dorsal view of the cephalothorax of six freshwater crab new species:
A.- Microthelphusa aracamuniensis, n. sp.; B.- M. marahuacaensis, n. sp.; C.- M. guaiquinimaensis, n. sp.; D.- M. maigualidaensis, n. sp.; E.- M. roraimaensis,n. sp.; F.- Fredius cuaoensis,n. sp. 



Suárez, Héctor. 2013 “2015”. Six New Species of Freshwater Crabs from Pantepui, Venezuela (Crustacea: Decapoda: Pseudothelphusidae).
ANARTIA. 25; 64–94. DOI:  10.5281/zenodo.18333


Seis nuevas especies de cangrejos de agua dulce del Pantepui, Venezuela (Crustacea: Decapoda: Pseudothelphusidae)
Resumen: Se describen seis nuevas especies de cangrejos pseudotelfúsidos (Crustacea: Decapoda: Brachyura) procedentes de varios ríos de la región pantepuyana de Venezuela, en los estados Amazonas y Bolívar: Microthelphusa aracamuniensis, n. sp., M. guaiquinimaensis, n. sp., M. maigualidaensis, n. sp. M. marahuacaensis, n. sp., M. roraimaensis, n. sp., y Fredius cuaoensis, n. sp.