A new skink of the genus Subdoluseps Freitas, Datta-Roy, Karanth, Grismer & Siler, 2019 (Squamata: Scincidae) from southern Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4952 (2) ◽  
pp. 257-274
Author(s):  
MANH VAN LE ◽  
VU DANG HOANG NGUYEN ◽  
HOA THI PHAN ◽  
ATTAPOL RUJIRAWAN ◽  
ANCHALEE AOWPHOL ◽  
...  
Keyword(s):  
New Species ◽  
Coastal Area ◽  
Phylogenetic Trees ◽  
Tail Length ◽  
Morphological Characters ◽  
Length Ratio ◽  
Medium Size ◽  
Anterior Border ◽  
Southern Vietnam ◽  
A New Species

We describe a new species of the genus Subdoluseps Freitas, Datta-Roy, Karanth, Grismer & Siler from a coastal area in southern Vietnam. Subdoluseps vietnamensis sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent length up to 48.7 mm); tail length/snout-vent length ratio 1.04; toes not reaching finger when limbs adpressed; 27–30 midbody scale rows, smooth; 55–57 paravertebral scales; 55–62 ventral scale rows; 64–74 subcaudal scales; frontoparietal scale single; four supraoculars; prefrontals not in contact with one another; two loreal scales; seven supralabials; ear-opening with two lobules on the anterior border; smooth lamellae beneath finger III 9 or 10 and toe IV 12–15; six enlarged precloacal scales; and four distinct black stripes on dorsum. The new species differs genetically from its closest congeners, S. bowringii (Günther) and S. frontoparietale (Taylor), by uncorrected p-distances of 10.0% and 9.5%, respectively in ND1 sequences, and clusters into the same matriline with these two congeners on the phylogenetic trees. 

A new skink of the genus Sphenomorphus Fitzinger, 1843 (Squamata: Scincidae) from Hon Ba Nature Reserve, southern Vietnam

Zootaxa ◽  
2018 ◽  
Vol 4438 (2) ◽  
pp. 313
Author(s):  
SANG NGOC NGUYEN ◽  
LUAN THANH NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
NIKOLAI L. ORLOV ◽  
ROBERT W. MURPHY
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Tail Length ◽  
Morphological Characters ◽  
Length Ratio ◽  
Medium Size ◽  
Southern Vietnam ◽  
Gene Coi ◽  
New Forest ◽  
Coi Sequences

A new forest skink of the genus Sphenomorphus Fitzinger, 1843 is described from Khanh Hoa Province, southern Vietnam based on morphological characters of four specimens and a fragment of 653 nucleotides of the gene COI. Sphenomorphus yersini sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent length up to 55 mm); tail length/snout-vent length ratio 1.81; toes reach to fingers when limbs adpressed; midbody scale rows 32–34, smooth; paravertebral scales 61–69; ventral scale rows 58–67; subcaudal scales 112; supraoculars four, rarely five; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk; smooth lamellae beneath finger and toe IV 10–12 and 18–20 respectively; a pair of enlarged precloacal scales; hemipenis deeply forked and asymmetrical with two differently sized smooth lobes. The new species differs from its most similar congener, Sphenomorphus buenloicus Darevsky & Nguyen, 1983, by 16.4–16.7% uncorrected p-distance in COI sequences. 

A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from Cu Lao Cham Islands, central Vietnam

Zootaxa ◽  
2017 ◽  
Vol 4286 (3) ◽  
pp. 333 ◽  
Author(s):  
SANG NGOC NGUYEN ◽  
LUAN THANH NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
HOA THI PHAN ◽  
KE JIANG ◽  
...  
Keyword(s):  
New Species ◽  
Anterior Part ◽  
Tail Length ◽  
Length Ratio ◽  
Medium Size ◽  
Total Length ◽  
Central Vietnam ◽  
A New Species

A new kukri snake, Oligodon culaochamensis sp. nov., is described from Cu Lao Cham Islands, central Vietnam, based on the morphology of six specimens, including two males, three females and one juvenile. The new species belongs to the O. cyclurus group and differs from other congeners in this group by a combination of the following characters: medium size in adults (total length up to 582 mm); 17–19 dorsal scale rows at neck and midbody and 15 or 17 rows before vent; tail length/total length ratio 0.218–0.219 in males and 0.166–0.169 in females; ventrals 167–169 in males and 179–182 in females; subcaudals 63–66 in males and 51–52 in females; head scalation complete with a presubocular; 9–10 maxillary teeth, the posterior three being enlarged; nasal divided; temporal streak absent; long and deeply forked hemipenes extending to 20th subcaudal and without spines and papillae but with prominent diagonal ridge, oblique flounces and distal calyces; cloacal plate undivided; 10–11+3–4 dorsal blotches; and a vertebral stripe on tail and anterior part of body. This is the second species of Oligodon described on islands of Vietnam. 

Steinernema borjomiense n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Georgia

Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 653-669 ◽  
Author(s):  
Oleg Gorgadze ◽  
Elena Fanelli ◽  
Manana Lortkhipanidze ◽  
Alberto Troccoli ◽  
Medea Burjanadze ◽  
...  
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Entomopathogenic Nematode ◽  
Phylogenetic Analyses ◽  
Tail Length ◽  
Morphological Characters ◽  
18S Rrna Gene ◽  
The Body ◽  
Rrna Gene ◽  
A New Species

Summary A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) μm, distance between the head and excretory pore = 72 (62-80) μm, pharynx length = 132 (122-142) μm, tail length = 70 (60-80) μm, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.

A new species of Cycloramphus Tschudi (Anura: Cycloramphidae) from the Parque Nacional da Serra dos Órgãos, Southeastern Brazil

Zootaxa ◽  
2011 ◽  
Vol 2737 (1) ◽  
pp. 19 ◽  
Author(s):  
LUIZ NORBERTO WEBER ◽  
VANESSA KRUTH VERDADE ◽  
RODRIGO DE DE OLIVEIRA LULA SALLES ◽  
ANTOINE FOUQUET ◽  
SERGIO POTSCH DE CARVALHO-E-SILVA
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Southeastern Brazil ◽  
Medium Size ◽  
New Taxon ◽  
Skin Texture ◽  
Male And Female ◽  
A New Species

We report here the discovery of a new species of frog associated to the open areas of the highlands of the Parque Nacional da Serra dos Órgãos. The new species, Cycloramphus organensis is characterized by a unique skin texture, medium size (maximum male and female SVL 26.4 mm and 33.3 mm respectively), dorsal surfaces uniformly brick red colored, uniformly areolate skin on dorsum, pupil horizontal, iris with a menisc on upper margin; no fleshy tubercles on eyelid, tympanic annulus concealed beneath skin, macroglands not visible externally, fingers and toes without fringes and webs; supernumerary palmar and plantar tubercles absent, nuptial spines absent. Despite the presence of an iris menisc, a character shared by frogs of both genera Cycloramphus and Zachaenus Cope, the combination of morphological characters is so unique that the allocation of the species to any of these genera remains ambiguous. Consequently, we used additional molecular-based phylogenetic analyses to ascertain the position of the new taxon. The new species proved to be embedded within the genus Cycloramphus.

A new skink of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam

Zootaxa ◽  
2019 ◽  
Vol 4648 (2) ◽  
pp. 273-286
Author(s):  
SANG NGOC NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
LUAN THANH NGUYEN ◽  
ROBERT W. MURPHY
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Morphological Characters ◽  
Nucleotide Sequences ◽  
Morphological Data ◽  
Medium Size ◽  
Southern Vietnam ◽  
Males And Females ◽  
Coi Sequences ◽  
Dorsal Pattern

Ba Den is an isolated mountain in southern Vietnam and home to two endemic species of lizards. Herein, we describe another endemic species, a new skink of the genus Scincella Mittleman, 1950, from the area based on morphological data, including hemipenial characters and nucleotide sequences of COI. The following morphological characters diagnose Scincella badenensis sp. nov.: medium size in adults (snout-vent length up to 64.4 mm); toes reach to fingers when limbs adpressed; midbody scale rows 32–36, smooth; paravertebral scales 67–71; dorsal scales not enlarged; ventral scale rows 68–74; supraoculars four; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk, without auricular lobules; two enlarged anterior temporal scales; smooth lamellae beneath toe IV 18–20; pair of enlarged precloacal scales; hemipenes short, smooth and forked near the tip with two short lobes and two small terminal papillae; no dorsal pattern in males; and females with black interruptive vertebral line. The new species differs from its congeners by at least 10.4% uncorrected p-distance in COI sequences. 

A new species of the snake genus Fimbrios from Phong Nha-Ke Bang National Park, Truong Son, central Vietnam (Squamata: Xenodermatidae)

Zootaxa ◽  
2008 ◽  
Vol 1729 (1) ◽  
pp. 37 ◽  
Author(s):  
THOMAS ZIEGLER ◽  
PATRICK DAVID ◽  
AURELIEN MIRALLES ◽  
DOAN VAN KIEN ◽  
Nguyen Quang Truong
Keyword(s):  
New Species ◽  
National Park ◽  
Neck Region ◽  
Tail Length ◽  
Length Ratio ◽  
Mountain Range ◽  
Snake Species ◽  
Total Length ◽  
Central Vietnam ◽  
A New Species

A second species of the previously monotypic snake genus Fimbrios is described from the Truong Son Mountain Range, Vietnam. Fimbrios smithi sp. n. is included in this genus on the basis of the combination of the following characters: rostral, mental and first three to four labials with raised, erected edges; a horizontal ridge of tissues above the rostral; a very large loreal. It is distinguished from F. klossi by having the suture between the internasals longer than that between the prefrontals; two suboculars; 193 ventrals, and 72 unpaired subcaudal scales; total length of at least 440 mm in males (with a tail length of 94 mm, and a tail / total length ratio of 0.214); dorsum greyish brown, with a paler flank area, and pale blotches and stripes in the neck region. Fimbrios smithi sp. n. is the seventh snake species that has been described as new from the Phong Nha—Ke Bang National Park, Quang Binh Province, central Vietnam, in the last decade; it is the forty-fourth colubrid snake species known from that region, which now comprises 60 snake species in general.

scholarly journals A new species of Oligodon Fitzinger, 1826 from the Langbian Plateau, southern Vietnam, with additional information on Oligodon annamensis Leviton, 1953 (Squamata: Colubridae)

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8332 ◽  
Author(s):  
Hung Ngoc Nguyen ◽  
Bang Van Tran ◽  
Linh Hoang Nguyen ◽  
Thy Neang ◽  
Platon V. Yushchenko ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
First Record ◽  
Morphological Characters ◽  
Medium Size ◽  
12S Rrna ◽  
Additional Information ◽  
Sister Relationships ◽  
High Level ◽  
A New Species

We describe a new species of Oligodon from the highlands of the Langbian Plateau, southern Truong Son Mountains, Vietnam, based on morphological and molecular phylogenetic analyses. The new species, Oligodon rostralis sp. nov is distinguished from its congeners by the following morphological characters: medium size in adults (male TL = 582 mm); small and broad head with long protruding snout; dorsal scale row formula 15-15-13; 167 ventrals, 47 subcaudals; single preocular, single postocular; loreal and presubocular absent; six supralabials, third and fourth entering orbit; six infralabials, anterior four contacting first pair of chin shields; internasals separate from prefrontals; nasal divided; single anterior and two posterior temporals; cloacal plate undivided; hemipenes short, bilobed, bifurcating in anterior one third of their length, extending to 8th subcaudal, lacking spines and papillae, with a prominent transverse flounces and distal calyces; six maxillary teeth, the posterior three enlarged; dorsal pattern consisting of 14+4 large dark-brown blotches and a bright-orange vertebral stripe on tail and dorsum; and ventral surfaces in life cream laterally with dark quadrangular spots; dark temporal streak present, edged with white. We also provide additional information on O. annamensis, including a morphological dataset of all specimens known from natural history collections and confirmation of an earlier record of O. annamensis from Cambodia. We also provide the first record of O. annamensis for Dak Lak Province. Phylogenetic analyses of mtDNA genes (3,131 bp of 12S rRNA, 16S rRNA and cyt b) suggest sister relationships of Oligodon rostralis sp. nov. and O. annamensis and place them in one clade with the O. cyclurus and O. taeniatus species groups, which is concordant with previous studies on the phylogenetic relationships of Oligodon. Our study demonstrates high level of herpetofaunal diversity and endemism of Langbian Plateau and further supports the importance of this area for conservation herpetofaunal diversity in Indochina.

scholarly journals Helicteres binhthuanensis V.S.Dang (Malvaceae, Helicteroideae), a new species from southern Vietnam

PhytoKeys ◽  
2020 ◽  
Vol 166 ◽  
pp. 87-95
Author(s):  
Van-Son Dang ◽  
Minh-Quan Dang ◽  
Nghia-Son Hoang
Keyword(s):  
New Species ◽  
Related Species ◽  
Common Species ◽  
Morphological Characters ◽  
Fruit Shape ◽  
Northern Territory ◽  
Conservation Assessment ◽  
Closely Related Species ◽  
Southern Vietnam ◽  
A New Species

Helicteres binhthuanensis V.S.Dang, sp. nov. from Ham Thuan Bac District, Binh Thuan Province, Vietnam is described and illustrated. It is morphologically similar to H. angustifolia, which is a common species in mainland southeast Asia, and H. sphaerotheca, which is endemic to the Northern Territory, Australia, but differs from both by several salient characters such as leaf and calyx size, androgynophore length, petal color, and fruit shape. Photographs, a vernacular name, a preliminary conservation assessment, and a table of morphological characters comparing this new species to two closely related species also are provided.

A new species of Ahaetulla Link, 1807 (Squamata: Colubridae) from the Mekong Delta, Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4966 (3) ◽  
pp. 290-304
Author(s):  
NGON QUANG LAM ◽  
TRAN THI ANH THU ◽  
LUAN THANH NGUYEN ◽  
ROBERT W. MURPHY ◽  
SANG NGOC NGUYEN
Keyword(s):  
New Species ◽  
Mekong Delta ◽  
Morphological Characters ◽  
Nucleotide Sequences ◽  
Morphological Data ◽  
White Stripe ◽  
Southern Vietnam ◽  
Bright Green ◽  
Red Eyes ◽  
A New Species

A new vine snake, genus Ahaetulla, from Soc Trang Province, southern Vietnam is described based on morphological data and nucleotide sequences from COI and Cytb. Ahaetulla rufusoculara sp. nov. is diagnosed by the following morphological characters: bright red eyes; snout without dermal appendage; internasal separated from supralabial by loreal; body scale rows 15-15-13; ventrals 186–190 in males and 182–185 in females; subcaudals 143–153 in males and 128 or 129 in females; 8 (rarely 9) supralabials, fourth and fifth or fourth to sixth entering orbit; 12–14 maxillary teeth; hemipenis short, reaching 6th or 7th SC; cloacal plate divided; dorsum bright green; and yellow or white stripe along the lower flank. The new species differs from its congeners by an uncorrected p-distance in COI and Cytb sequences of at least 7.7% and 7.5%, respectively. 

A new species of the genus Nothobranchius (Cyprinodontiformes: Nothobranchiidae) from the coastal area of northeastern Mozambique

Zootaxa ◽  
2007 ◽  
Vol 1587 (1) ◽  
pp. 61-68 ◽  
Author(s):  
STEFANO VALDESALICI
Keyword(s):  
New Species ◽  
Coastal Area ◽  
Morphological Characters ◽  
Species Group ◽  
Undescribed Species ◽  
Color Patterns ◽  
Male And Female ◽  
A New Species

Specimens of a distinctive fish of the genus Nothobranchius were collected from an ephemeral pool, not directly linked to an adjacent river, from the coastal area of northeastern Mozambique. These specimens appear to be closely related to Nothobranchius melanospilus, known from eastern Tanzania and southeastern Kenya and to another as-yet undescribed species (Nothobranchius cf. melanospilus) from a geographically contiguous area of southern Tanzania and northern Mozambique. The new species (herein described as Nothobranchius hengstleri) is differentiated by several morphological characters, as well as by different male and female color patterns from the above-reported species and all the others members of the Nothobranchius melanospilus species group.

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