A new species of Psammophis (Serpentes: Psammophiidae) from the Turpan Basin in northwest China

Zootaxa ◽  
2021 ◽  
Vol 4974 (1) ◽  
pp. 116-134
Author(s):  
MINLI CHEN ◽  
JINLONG LIU ◽  
BO CAI ◽  
JUN LI ◽  
NA WU ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Northwest China ◽  
Genetic Differences ◽  
Cytb Gene ◽  
Turpan Basin ◽  
Morphological Differences ◽  
A New Species

An adult sand snake specimen was collected during a herpetofaunal survey conducted in the Turpan Basin in northwest China. Phylogenetic analyses revealed that this specimen, along with other snake sloughs and skins collected from different localities in the Turpan Basin formed a clade that is sister to Psammophis lineolatus. This taxon exhibited substantial divergence from its congeners (P. lineolatus and P. condanarus) with uncorrelated p-distances ranging from 11.9 ± 0.9% to 15.8 ± 1.6% for the ND4 gene and from 10.2 ± 0.8% to 13.8 ± 1.1% for the Cytb gene. Given the genetic differences along with morphological differences, we describe the specimen from the Turpan Basin as Psammophis turpanensis sp. nov. We provide detailed morphological descriptions, and compare this specimen with five Asian sand snakes and the Afro-Asian Sand Snake, P. schokari. In addition, we provide brief comments on the biogeography of Psammophis in China. 

A new species of Cyrtodactylus (Squamata: Gekkonidae) from Ninh Thuan Province, southern Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4999 (1) ◽  
pp. 58-76
Author(s):  
Quyen Hanh Do ◽  
TRUNG MY PHUNG ◽  
HANH THI NGO ◽  
MINH DUC LE ◽  
THOMAS ZIEGLER ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Coi Gene ◽  
Unique Combination ◽  
Mitochondrial Coi ◽  
Southern Vietnam ◽  
Mitochondrial Coi Gene ◽  
Morphological Differences ◽  
Dorsal Pattern ◽  
A New Species

A new species of the Cyrtodactylus irregularis group is described from Ninh Thuan Province, southern Vietnam based on molecular divergence and morphological differences. Cyrtodactylus orlovi sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by having the unique combination of the following characters: size medium (SVL 61.0–77.7 mm); dorsal tubercles in 16–20 irregular rows; 36–39 ventral scale rows; precloacal pores absent in females, 5 or 6 in males, in a continuous row; femoral pores absent; 3–8 enlarged femoral scales; postcloacal spurs 1 or 2; lamellae under toe IV 16–19; a continuous neckband; a highly irregular transverse banded dorsal pattern; the absence of transversely enlarged median subcaudal scales. In phylogenetic analyses, the new species was revealed to be the sister taxon to a clade consisting of Cyrtodactylus cattienensis and the most recently described species from Vietnam, C. chungi, with 12.1–12.4% and 11.7 % pairwise genetic divergence from the two species, respectively, based on a fragment of the mitochondrial COI gene.  

scholarly journals Two new entomopathogenic species of Ophiocordyceps in Thailand

MycoKeys ◽  
2019 ◽  
Vol 47 ◽  
pp. 53-74 ◽  
Author(s):  
Yuan-Pin Xiao ◽  
Sinang Hongsanan ◽  
Kevin D. Hyde ◽  
Siraprapa Brooks ◽  
Ning Xie ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Similar Species ◽  
Closely Related Species ◽  
The Family ◽  
Distinct Lineage ◽  
Morphological Differences ◽  
A New Species ◽  
Rpb1 Sequence

Ophiocordyceps is entomopathogenic and the largest studied genus in the family Ophiocordycipitaceae. Many species in this genus have been reported from Thailand. The first new species introduced in this paper, Ophiocordycepsglobiceps, differs from other species based on its smaller perithecia, shorter asci and secondary ascospores and additionally, in parasitising fly species. Phylogenetic analyses of combined LSU, SSU, ITS, TEF1α and RPB1 sequence data indicate that O.globiceps forms a distinct lineage within the genus Ophiocordyceps as a new species. The second new species, Ophiocordycepssporangifera, is distinguished from closely related species by infecting larvae of insects (Coleoptera, Elateridae) and by producing white to brown sporangia, longer secondary synnemata and shorter primary and secondary phialides. We introduce O.sporangifera based on its significant morphological differences from other similar species, even though phylogenetic distinction is not well-supported.

The formerly enigmatic Unidentiidae in the limelight again: a new species of the genus Unidentia from Thailand (Gastropoda: Nudibranchia)

Zootaxa ◽  
2019 ◽  
Vol 4551 (5) ◽  
pp. 556 ◽  
Author(s):  
TATIANA KORSHUNOVA ◽  
RAHUL MEHROTRA ◽  
SPENCER ARNOLD ◽  
KENNET LUNDIN ◽  
BERNARD PICTON ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Morphological Data ◽  
Sea Slugs ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Morphological Differences ◽  
First Time ◽  
A New Species

An integrative molecular and morphological study is presented for the family Unidentiidae. Molecular phylogenetic analyses were conducted with the inclusion of all previous and newly obtained molecular data for the family Unidentiidae Millen & Hermosillo 2012. A new species of the genus Unidentia Millen & Hermosillo 2012, U. aliciae sp. nov., is described from Thailand as part of an inventory of sea slugs at Koh Tao. All up-to-date available morphological data for the species of the genus Unidentia is for the first time summarized. Morphological differences among the different species of Unidentia are clarified showing that every species has its own distinguishable morphological traits. According to the new molecular and morphological data, the family Unidentiidae is re-confirmed as a well-supported taxon of the aeolidacean nudibranchs. The taxonomy and phylogeny of the Aeolidacea in the light of the family Unidentiidae is briefly discussed and necessity of a fine-scale and narrowly-defined taxa approach instead of a ‘‘superlumping’’ one is highlighted. 

scholarly journals Eutrema nanum (Brassicaceae), a new species from Chola Shan, Southwest China

PhytoKeys ◽  
2018 ◽  
Vol 108 ◽  
pp. 131-139
Author(s):  
Guoqian Hao ◽  
Ihsan A. Al-Shehbaz ◽  
Lei Zhang ◽  
Xinyi Guo ◽  
Xu Songbai ◽  
...  
Keyword(s):  
New Species ◽  
Southwest China ◽  
Phylogenetic Analyses ◽  
High Elevation ◽  
Genetic Differences ◽  
New Combination ◽  
Sequence Variations ◽  
Cpdna Sequence ◽  
Close Relatives ◽  
A New Species

Eutremananum, a new high-elevation (4500–4600 m) species from Chola Shan, Sichuan (Southwest China), is described and illustrated. It is similar morphologically to E.nepalense but is readily distinguished by having oblong to elliptic or obovate to spatulate (vs. suborbicular to broadly ovate) leaves, glabrous (vs. puberulent) sepals and ovate to oblong fruit 4–7 × 2–3 mm with flattened valves (vs. ovoid to subglobose fruit 2–3 × 1.8–2 mm with rounded valves). The genetic differences amongst E.nanum, E.nepalense and other close relatives are further confirmed by phylogenetic analyses using ITS and cpDNA sequence variations. The new combination E.sinense is proposed.

A new Rorippa species (Brassicaceae), R. hengduanshanensis, from the Hengduan Mountains in China

Phytotaxa ◽  
2021 ◽  
Vol 480 (3) ◽  
pp. 210-222
Author(s):  
QUAN-JING ZHENG ◽  
CHIH-CHIEH YU ◽  
YAO-WU XING ◽  
TING-SHEN HAN
Keyword(s):  
New Species ◽  
Ploidy Level ◽  
Phylogenetic Analyses ◽  
Hengduan Mountains ◽  
Fruit Morphology ◽  
Floral Structure ◽  
Qualitative And Quantitative ◽  
Plastid Markers ◽  
Morphological Differences ◽  
A New Species

A new species of genus Rorippa, R. hengduanshanensis, from the Hengduan Mountains, is described herein. Comparing the floral structure and overall fruit morphology of R. hengduanshanensis with similar taxa (e.g., R. benghalensis, R. dubia, and R. indica) revealed a series of morphological differences, both qualitative and quantitative. R. hengduanshanensis differs from R. benghalensis in the ebracteate racemes; from R. dubia in the flattened silique, the presence of four petals and the ploidy level (2n=6x=48); and from R. indica in the uniseriate seeds. Phylogenetic analyses using three plastid markers (psbC-trnS, trnG-trnM, and trnL) further revealed clear interspecific divergences that can distinguish R. hengduanshanensis from its morphologically related taxa.

A new species of Hemiphyllodactylus (Squamata: Gekkonidae) from Tuyen Quang Province, Vietnam

Zootaxa ◽  
2020 ◽  
Vol 4821 (3) ◽  
pp. 511-532
Author(s):  
QUYEN HANH DO ◽  
CUONG THE PHAM ◽  
TIEN QUANG PHAN ◽  
MINH DUC LE ◽  
THOMAS ZIEGLER ◽  
...  
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Unique Combination ◽  
Northern Vietnam ◽  
Karst Forest ◽  
Morphological Differences ◽  
A New Species ◽  
Lateral Head

A new species of the gekkonid genus Hemiphyllodactylus is described from limestone karst forest of Tuyen Quang Province, northern Vietnam based on morphological differences and molecular divergence. Hemiphyllodactylus nahangensis sp. nov. is distinguished from the remaining congeners by having the unique combination of the following characters: a bisexual taxon; SVL of adults 41.4–43.6 mm; dorsal scale rows 18–23; ventral scale rows 9–13; chin scales bordering mental and first infralabial distinctly enlarged; 22–24 pore-bearing femoral and precloacal scales, in a continuous row, absent in females; digital lamella formula 3-4-5-4 (forefoot) and 4-5-5-5 (hindfoot); cloacal spur single, present in both sexes; dark lateral head stripe indistinct; postsacral mark cream and bearing anteriorly projecting arms. In phylogenetic analyses, the new species is placed in a clade that includes H. dushanensis, H. hongkongensis, H. huishuiensis, H. ngocsonensis and H. zugi. In terms of pairwise genetic distance, the new species is at least 5.9%–6.6% divergent from other congeners based on a fragment of the mitochondrial gene ND2.

scholarly journals Eutrema nanum (Brassicaceae), a new species from Chola Shan, Southwest China

PhytoKeys ◽  
2018 ◽  
Vol 109 ◽  
pp. 17-25
Author(s):  
Guoqian Hao ◽  
Ihsan A. Al-Shehbaz ◽  
Lei Zhang ◽  
Xinyi Guo ◽  
Xu Songbai ◽  
...  
Keyword(s):  
New Species ◽  
Southwest China ◽  
Phylogenetic Analyses ◽  
High Elevation ◽  
Genetic Differences ◽  
New Combination ◽  
Sequence Variations ◽  
Cpdna Sequence ◽  
Close Relatives ◽  
A New Species

Eutremananum, a new high-elevation (4500–4600 m) species from Chola Shan, Sichuan (Southwest China), is described and illustrated. It is similar morphologically to E.nepalense but is readily distinguished by having oblong to elliptic or obovate to spatulate (vs. suborbicular to broadly ovate) leaves, glabrous (vs. puberulent) sepals and ovate to oblong fruit 4–7 × 2–3 mm with flattened valves (vs. ovoid to subglobose fruit 2–3 × 1.8–2 mm with rounded valves). The genetic differences amongst E.nanum, E.nepalense and other close relatives are further confirmed by phylogenetic analyses using ITS and cpDNA sequence variations. The new combination E.sinense is proposed.

scholarly journals Description and molecular phylogeny of Tethya leysae sp. nov. (Porifera, Demospongiae, Hadromerida) from the Canadian Northeast Pacific with remarks on the use of microtomography in sponge taxonomy

Zootaxa ◽  
2010 ◽  
Vol 2422 (1) ◽  
pp. 1 ◽  
Author(s):  
ISABEL HEIM ◽  
MICHAEL NICKEL
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Sister Group ◽  
Dense Layer ◽  
Morphometric Measurements ◽  
Northeast Pacific ◽  
Species Cluster ◽  
Morphological Differences ◽  
First Time ◽  
A New Species

The sponge Tethya leysae sp. nov. (Porifera, Demospongiae, Hadromerida, Tethyidae) is a new species from the Canadian Northeast Pacific. Its type locality is the infralittoral around Ohiat Islet, Barkely Sound, Vancouver Island in Canada. Tethya leysae sp. nov. is a medium-sized spherical sponge with a verrucose surface, orange-yellow to light red alive and white with a greyish core in ethanol. The highly variable oxyspherasters (25-115 µm in size, R/C 0.34-0.69) are densely scattered almost throughout the entire cortex. The micrasters comprise acanthoxyspherasters, acanthostrongylasters, acanthotylasters and small oxyspherasters, which are present at low densities throughout the sponge and form a dense layer associated with the exopinacoderm. The megascleres and the auxiliary megascleres comprise oxeas and strongyloxeas. The new species is clearly distinguishable from the closely related T. californiana by the absence of spherules among the micrasters, the lack of an alveolar cortex and the extremely high density of megasters in the cortex. In addition, the R/C values of the megasters differ between the two species and the oxyspherasters of T. leysae sp. nov. rarely display bent rays. The morphological differences between the species are confirmed by nucleotide and amino acid substitutions within the cytochrome oxidase subunit I (COI) mtDNA gene. Phylogenetic analyses group T. leysae sp. nov. with T. californiana, T. actinia and T. minuta, which together form a sister group to a MediterraneanNorth Atlantic species cluster. Morphological analyses of the skeleton included x-ray microtomography (µCT) and virtual 3D reconstruction, which was used for the first time in conjunction with the description of a new sponge species. Microtomography permitted the visualization and analysis of spicules within the skeletal context or isolated in silico. The method represents a valuable extension to the sponge taxonomist’s toolbox since it allows morphometric measurements in 3D. µCT will thus supplement classical morphological methods such as light and scanning electron microscopy.

scholarly journals Zahora, a new monotypic genus from tribe Brassiceae (Brassicaceae) endemic to the Moroccan Sahara

PhytoKeys ◽  
2019 ◽  
Vol 135 ◽  
pp. 119-131
Author(s):  
Marcus A. Koch ◽  
Claude Lemmel
Keyword(s):  
New Species ◽  
Raphanus Sativus ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Diploid Species ◽  
Sahara Desert ◽  
New Taxon ◽  
Morphological Differences ◽  
Crop Research ◽  
A New Species

Zahora ait-atta Lemmel & M.Koch, a new species from the Moroccan Sahara, is described and documented here and constitutes a monotypic new genus. The new taxon belongs to the tribe Brassiceae (Brassicaceae), and cytogenetic and phylogenetic analyses reveal that this diploid species has a remote status of Miocene origin in the northwestern Sahara Desert. We examined the morphological differences between morphologically related genera and provide photographs of the new species. The new genus may play a key role in future Brassica-Raphanus crop research since it is placed phylogenetically at the base of a generically highly diverse clade including Raphanus sativus, and it shows affinities to various Brassica species.

A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

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