scholarly journals A new cryptic arboreal species of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from the uplands of western Thailand

2021 ◽  
Vol 71 ◽  
pp. 723-746
Author(s):  
L. Lee Grismer ◽  
Chatmongkon Suwannapoom ◽  
Parinya Pawangkhanant ◽  
Roman A. Nazarov ◽  
Platon V. Yushchenko ◽  
...  

The first integrative taxonomic analysis of the Cyrtodactylus brevipalmatus group of Southeast Asia recovered two newly discovered populations from the Tenasserim Mountains in Suan Phueng District, Ratchaburi Province, Thailand as a new species described here as C. rukhadeva sp. nov. Based on 1397 base pairs of the mitochondrial gene NADH dehydrogenase subunit 2 (ND2), C. rukhadeva sp. nov. is the well-supported sister species to a clade containing three undescribed species, C. ngati, and C. cf. interdigitalis with a large uncorrected pairwise sequence divergence from other species in the brevipalmatus group ranging from 15.4–22.1%. Cyrtodactylus elok and C. brevipalmatus are recovered as poorly supported sister species and the well-supported sister lineage to the remainder of the brevipalmatus group. Cyrtodactylus rukhadeva sp. nov. is putatively diagnosable on the basis of a number of meristic characters and easily separated from the remaining species of the brevipalmatus group by a number of discrete morphological characters as well as its statistically significant wide separation in multivariate morphospace. The discovery of C. rukhadeva sp. nov. continues to underscore the unrealized herpetological diversity in the upland forests of the Tenasserim Mountains and that additional field work will undoubtedly result in the discovery of additional new species.

Zootaxa ◽  
2019 ◽  
Vol 4624 (3) ◽  
pp. 301-321 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
EVAN S. H. QUAH ◽  
MYINT KYAW THURA ◽  
JAMIE R. OAKS ◽  
...  

An integrative taxonomic analysis of the Cyrtodactylus linnwayensis group of the Shan Plateau recovered two new populations from isolated karst habitats near Pinlaung Town, Shan State as a new species, C. pinlaungensis sp. nov. Cyrtodactylus pinlaungensis sp. nov. is most closely related to a clade comprising C. linnwayensis and C. ywanganensis from the western edge of the Shan Plateau approximately 90 km to the northwest. Cyrtodactylus pinlaungensis sp. nov. can be distinguished from all members of the C. linnwayensis group by a number of statistically different morphological characters, discrete color pattern differences, and its heavy tuberculation. It also bears an uncorrected pairwise sequence divergence of 5.0–7.6% from all other species combined based on the mitochondrial gene ND2 and its flanking tRNAs. The discovery of this new species on the Shan Plateau continues to underscore the fact that this region is rapidly emerging as a herpetological diversity hot-spot for Myanmar. 


Zootaxa ◽  
2021 ◽  
Vol 4980 (1) ◽  
pp. 1-27
Author(s):  
ADE PRASETYO AGUNG ◽  
L. LEE GRISMER ◽  
JESSE L. GRISMER ◽  
EVAN S. H. QUAH ◽  
ADA CHORNELIA ◽  
...  

A new species of the gekkonid genus Hemiphyllodactylus is described from forested karst hills near Zhutangxiang town, Lancang Lahu Autonomous County, Yunnan, China. Hemiphyllodactylus zhutangxiangensis sp. nov. is distinguished from all other congeners in morphology and an uncorrected pairwise sequence divergence of greater than 14% based on 1039 base pairs of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). The new species is defined by the following characters: a maximum SVL of 44.42 mm; 7–9 chin scales; enlarged postmentals; five circumnasal scales; 2–4 internasal scales; 8–11 supralabial scales; 8–11 infralabial scales; subdigital lamellae on fingers II–V (3–5)-(4–6)-(4 or 5)-(4 or 5); subdigital lamellae on toes II–V (4 or 5)-(4 or 5)-(4–6)-(4 or 5); dorsal scales 11–15; ventral scales 5–7; 20–23 continuous femoroprecloacal pores; having pale-grey base color on the body with various darker transverse dorsal blotches; a dark postorbital stripe extending to at least to the base of the neck; no dark dorsolateral or ventrolateral stripe on trunk; and postsacral marking bearing a dark fork-like pattern with anteriorly projecting arms. The new species brings the species total of Hemiphyllodactylus in China to 11. 


2020 ◽  
Vol 27 (3) ◽  
pp. 127-148
Author(s):  
Shuo Liu ◽  
Mian Hou ◽  
Jian Wang ◽  
Natalia Borisovna Ananjeva ◽  
Dingqi Rao

We describe a new Diploderma species from Southern Yunnan Province, China. It is morphologically similar to D. chapaense, D. hamptoni, and D. yunnanense, but can be distinguished from these three species and all other congeners by its unique morphometric and meristic characters, color patterns and localized distribution range. Moreover, phylogenetic analyses of mitochondrial gene NADH dehydrogenase subunit 2 sequence data also supports this point of view; the new species differs genetically from investigated congeners by percentage distance of 8.78 to 21.15%.


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 ◽  
2021 ◽  
Vol 4949 (2) ◽  
pp. 261-288
Author(s):  
L. LEE GRISMER ◽  
PETER GEISSLER ◽  
THY NEANG ◽  
TIMO HARTMANN ◽  
PHILIPP WAGNER ◽  
...  

The integrated results of maximum likelihood (ML) and Bayesian inference (BI) analyses, principal component analyses (PCA), and a multiple factor analysis (MFA) recover a new, widely allopatric species of the Cyrtodactylus intermedius species group. Cyrtodactylus kulenensis sp. nov is endemic to the Phnom Kulen sandstone massif of the Phnom Kulen National Park, Siem Reap Province, in the lowlands of northwestern Cambodia. A phylogenetic analysis from a short read (275 base pairs) of the mitochondrial gene NADH dehydrogenase subunit 2 (ND2) from C. kulenensis sp. nov. was aligned with 1449 base pairs from all other species in the intermedius group.  The analysis recovered C. kulenensis sp. nov. as the sister species to a lineage composed of populations from the widely separated hilly regions of Sa Keao and Sakaerat in eastern Thailand. Multivariate (PCA, DAPC, and MFA) and univariate analyses (ANOVA) using combinations of meristic (scale counts), mensural (morphometric), and categorical (color pattern and morphology) characters from 52 specimens encompassing all species of the intermedius group clearly demonstrate C. kulenensis sp. nov. is significantly different and discretely diagnosable from all other species in the intermedius group. This new discovery further highlights the herpetological diversity and high levels of range-restricted endemism in basin-habitat-island landscapes throughout Indochina and the continued need for field work in the landscapes that remain unsurveyed. 


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.


Zootaxa ◽  
2013 ◽  
Vol 3635 (3) ◽  
pp. 201-223 ◽  
Author(s):  
WERNER CONRADIE ◽  
WILLIAM R. BRANCH ◽  
KRYSTAL A. TOLLEY

Phylogenetic reconstruction using the mitochondrial 16S marker shows that geographically separated populations of the poorly known Hyperolius cinereus (Anura: Hyperoliidae) from Angola form two distinct clades. The description of H. cinereus was originally based on only a single preserved adult male. Fresh material of both sexes allowed a detailed redescription of the species, which is restricted mainly to the south-draining Cunene and Cubango river systems. Bioacoustic and morphological characters, in conjunction with colouration differences, allow the description of a cryptic sister species from Lagoa Carumbo in north-eastern Angola, occurring in the Luele and Lovuo river systems of the Congo drainage basin. Tadpoles, for H. cinereus and the new species, are described.


ZooKeys ◽  
2020 ◽  
Vol 935 ◽  
pp. 25-35 ◽  
Author(s):  
Paula C. RodrÍguez-Flores ◽  
Enrique Macpherson ◽  
Annie Machordom

Hendersonida parvirostrissp. nov. is described from Papua New Guinea. The new species can be distinguished from the only other species of the genus, H. granulata (Henderson, 1885), by the fewer spines on the dorsal carapace surface, the shape of the rostrum and supraocular spines, the antennal peduncles, and the length of the walking legs. Pairwise genetic distances estimated using the 16S rRNA and COI DNA gene fragments indicated high levels of sequence divergence between the new species and H. granulata. Phylogenetic analyses, however, recovered both species as sister species, supporting monophyly of the genus.


ZooKeys ◽  
2019 ◽  
Vol 859 ◽  
pp. 31-48
Author(s):  
Ana F. Quijano-Ravell ◽  
Luis F. de Armas ◽  
Oscar F. Francke ◽  
Javier Ponce-Saavedra

A new species of scorpion belonging to the genus Centruroides Marx, 1890 is described from the Coalcomán mountain range, western Michoacán State, Mexico. Its general aspect resembles Centruroidesruana Quijano-Ravell & Ponce-Saavedra, 2016, and C.infamatus (C. L. Koch, 1844), but it is a smaller species having lower pectinal tooth counts; also, males of C.ruana have the pedipalp chelae slightly thicker, whereas C.infamatus has a subaculear tubercle nearer to the base of the aculeus. Another species with similar aspect is Centruroidesornatus Pocock, 1902; however, a preliminary molecular analysis of the mitochondrial gene mRNA 16S showed genetic divergence (measured as p-distance) near to 10% between these species, and lower differences between the new species with respect to C.infamatus (4.63%) and C.ruana (5.07%). The molecular evidence together with the morphological characters (integrative taxonomy) are sufficient for recognizing the Coalcomán population as a separate and valid species.


2018 ◽  
Vol 96 (4) ◽  
pp. 305-316 ◽  
Author(s):  
M.K. Lucid ◽  
A. Rankin ◽  
A. Espíndola ◽  
L. Chichester ◽  
S. Ehlers ◽  
...  

Species diversity of the genus Hemphillia Bland and W.G. Binney, 1872 (jumping-slugs) was studied across its range in western North America’s inland temperate rainforests. The taxonomic relationships among jumping-slug populations were clarified by integrating morphological, molecular, and biogeographic approaches. A new species, Skade’s jumping-slug (Hemphillia skadei sp. nov.), was discovered in this process and is described herein. We base this taxonomic decision on molecular comparison of representatives from other Hemphillia species and four morphological characters that distinguish H. skadei from its sister species, the pale jumping-slug (Hemphillia camelus Pilsbry and Vanatta, 1897). The distribution of H. skadei and H. camelus is described along with the notable lack of detection of the marbled jumping-slug (Hemphillia danielsi Vanatta, 1914) within the primary survey area.


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