Another new Cyrtodactylus (Squamata: Gekkonidae) from Guwahati, Assam, India

Zootaxa ◽  
2020 ◽  
Vol 4732 (3) ◽  
pp. 375-392
Author(s):  
JAYADITYA PURKAYASTHA ◽  
MADHURIMA DAS ◽  
SANATH CHANDRA BOHRA ◽  
AARON M. BAUER ◽  
ISHAN AGARWAL

We describe a new species of Cyrtodactylus from Guwahati city in the state of Assam, India and provide additional data on the recently described Cyrtodactylus guwahatiensis. Cyrtodactylus urbanus sp. nov. falls in the newly defined khasiensis group within the Indo-Burma clade of Cyrtodactylus and is the poorly supported sister taxon to Cyrtodactylus khasiensis. The new species differs from other members of the khasiensis group in mitochondrial sequence data (12.5–17.1 % uncorrected pairwise ND2 sequence divergence) as well as aspects of morphology including the number and arrangement of precloacal pores in males, the number of mid-ventral scales and paravertebral tubercles, and colour pattern. This is the second Cyrtodactylus endemic to the Guwahati region, the fourth from Assam and the twelfth from Northeast India. 

Zootaxa ◽  
2018 ◽  
Vol 4524 (5) ◽  
pp. 501 ◽  
Author(s):  
ISHAN AGARWAL ◽  
STEPHEN MAHONY ◽  
VARAD B. GIRI ◽  
R. CHAITANYA ◽  
AARON M. BAUER

We use mitochondrial sequence data to identify divergent lineages within the gekkonid genus Cyrtodactylus in northeast India and use morphological data to describe six new species from within the Indo-Burma clade of Cyrtodactylus. The new species share an irregular colour pattern but differ from described species from the region in morphology and mitochondrial sequence data (>11 % uncorrected pairwise sequence divergence). Three new species are from along the Brahmaputra River and three are from mountains south of the Brahmaputra, including the largest Cyrtodactylus from India and the fifth gecko to be described from a major Indian city, Guwahati. 


Zootaxa ◽  
2008 ◽  
Vol 1807 (1) ◽  
pp. 26 ◽  
Author(s):  
DAVID S. McLEOD

A new species of the dicroglossine genus Limnonectes from eastern Thailand and its tadpole are described. Analysis of DNA sequence data from 2518 base-pairs of the mitochondrial 12S and 16S gene regions places the species within the complex of frogs currently referred to as Limnonectes kuhlii and demonstrates it to be a separate lineage (>18% sequence divergence from type-material of L. kuhlii from Java). The new species differs from L. kuhlii by having nuptial pads, a greater snout–vent length, and different relative finger lengths than specimens from Java. It has more extensive toe webbing, a different arrangement of nuptial pads, and a greater snout–vent length than Limnonectes laticeps. The new species, which lacks vocal slits, also can be distinguished from the morphologically similar Limnonectes namiyei from Japan, which possesses vocal slits.


Crustaceana ◽  
2020 ◽  
Vol 93 (7) ◽  
pp. 703-725
Author(s):  
Sameer K. Pati ◽  
Santanu Mitra ◽  
Peter K. L. Ng

Abstract The identity of the potamid freshwater crab, Indochinamon manipurense (Alcock, 1909) from the state of Manipur in northeast India, is clarified based on an examination of the type specimens. The species is redescribed and a lectotype designated. Specimens from the same region previously referred to this species were compared to the types of I. manipurense and shown to belong to a new species of Potamiscus Alcock, 1909, instead. The new species, Potamiscus takedai sp. nov., can easily be separated from I. manipurense by the characters in the carapace, third maxilliped, male pleon, male gonopods, and female vulvae. Potamiscus takedai sp. nov. can be differentiated from congeners mainly by the strongly bent terminal segment of the male first gonopod and a relatively shorter distal segment of the male second gonopod.


2019 ◽  
Vol 19 (1) ◽  
pp. 12-15
Author(s):  
David C. Vanlalfakawma ◽  
Sukanta Kumar Sen ◽  
S.K. Tripathi ◽  
F. Lalnunmawia

Mizoram, one of the states in northeast India, is known for its rich bamboo resources. Mizoram has been unceasingly experiencing flowering of bamboo. Recently, a new species of bamboo, Bambusa mizorameana, was described from Mizoram. It is a less common species, and its distributions within the state are also very limited. Specimens were also collected from Manipur. There has been no previous report of its inflorescence. The sporadic flowering of the species in certain areas within the nearby forest of Aizawl city, observed since 2017 are reported in this paper.


Zootaxa ◽  
2011 ◽  
Vol 2883 (1) ◽  
pp. 52 ◽  
Author(s):  
DAVID S. MCLEOD ◽  
STEPHANI J. HORNER ◽  
COLIN HUSTED ◽  
ANTHONY BARLEY ◽  
DJOKO ISKANDAR

A new species in the dicroglossine genus Limnonectes from West Sumatra, Indonesia, is described. Analysis of DNA sequence data from the mitochondrial 12S and 16S gene regions places the species within the Limnonectes kuhlii Complex and demonstrates it to be the sister taxon of Limnonectes kuhlii sensu stricto from Java. Both molecular and morphological data support the recognition of this lineage as a new species. Notably, the presence of a spinule-covered mental plate distinguishes Limnonectes sisikdagu sp. nov. from all other members of the L. kuhlii Complex. Additionally, pair-wise sequence divergence greater than 10% separate the new species from its sister taxon, L. kuhlii from Java.


Zootaxa ◽  
2020 ◽  
Vol 4803 (1) ◽  
pp. 51-74
Author(s):  
GERNOT VOGEL ◽  
ZENING CHEN ◽  
V. DEEPAK ◽  
DAVID J. GOWER ◽  
JINGSONG SHI ◽  
...  

A new species of natricid snake, Smithophis linearis sp. nov., is described on the basis of a single recently collected specimen from Yingjiang County, Yunnan Province, People’s Republic of China, and three historical specimens from Yunnan and from northeastern Myanmar. The new species is assigned to the genus Smithophis on the basis of its single internasal and single prefrontal shields, and on the basis of the results of phylogenetic analysis of mitochondrial cytochrome b DNA sequence data. The new species differs from its congeners in having the following combination of characters: temporal shields present, six or more circumorbital scales, and a distinctive colour pattern comprising regular, narrow, longitudinal dark and pale lines. Morphological and cytochrome b data are consistent with the recognition of Smithophis as distinct from the genus Opisthotropis. A revised key to the identification of the species of Smithophis is provided. 


Zootaxa ◽  
2010 ◽  
Vol 2391 (1) ◽  
pp. 47 ◽  
Author(s):  
DAVID J. GOWER ◽  
MARK WILKINSON ◽  
EMMA SHERRATT ◽  
PHILIPPE J. R. KOK

The first new species of rhinatrematid caecilian in more than 50 years, Rhinatrema shiv sp. nov., is described from Guyana. The type series of 10 specimens differs from the only other species in the genus, R. bivittatum, in having a longer tail, different colour pattern, more acuminate and relatively shorter head, and in several features of the skull and mandible including dentition. Sequence data for 1572 aligned base pairs of mitochondrial DNA are > 15% different between the two species. Rhinatrema shiv is known only from Guyana, and R. bivittatum from French Guiana and far northeastern Brazil. The only reported specimen of the genus from Suriname is not clearly referable to either of the named species.


Zootaxa ◽  
2008 ◽  
Vol 1948 (1) ◽  
pp. 57-68 ◽  
Author(s):  
ERIC N. SMITH ◽  
JORGE A. FERRARI-CASTRO

We describe a new species of pitviper of the genus Atropoides from the Sierra de Botaderos and La Muralla, Honduras. The new species is easily distinguished from all other members of the genus, except A. picadoi from Costa Rica and Panama, by possessing more ventral scales (140 vs. 103–138). This new species differs from A. picadoi in being relatively small, less than 600 mm in total length (vs. reaching > 750 mm), having the posterior third of the body venter heavily melanized (vs. more than 50%), less than 50% of the underside of the tail melanized, and the postorbital stripe covering more than 50% of only one or two scales from the first temporal row and covering completely only the last scale of the row, at most (vs. 3–4 more than 50% melanized and the last two scales in the row usually completely melanized). In addition to morphological characters, molecular evidence also differentiates this new species from the other species of Atropoides (as recognized by Castoe et al. 2005). Using mitochondrial gene sequence data, they found the new species described herein to represent the sister species of A. occiduus, with 5.7 % sequence divergence separating these two taxa.


Zootaxa ◽  
2008 ◽  
Vol 1850 (1) ◽  
pp. 27 ◽  
Author(s):  
BRIAN K. SCHMIDT ◽  
JEFFREY T. FOSTER ◽  
GEORGE R. ANGEHR ◽  
KATE L. DURRANT ◽  
ROBERT C. FLEISCHER

We describe a new species of forest robin from the Gamba Complex in southwest Gabon. This common bird, Stiphrornis pyrrholaemus sp. nov., inhabits primary lowland forest and forages on or near the ground like the other members of the genus Stiphrornis of central and western Africa. Unique phenotypic features of the new species include the male’s bright orange chin, throat, and breast, creamy yellow belly, olive green back and rump, and gray flanks. Mitochondrial sequence divergence corroborates our assessment based on its distinct physical characteristics that this is a new species, and suggest that Stiphrornis erythrothorax is likely the most closely related congener.


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