Revisions of two poorly known species of Opisthotropis Günther, 1872 (Squamata: Colubridae: Natricinae) with description of a new species from China

Zootaxa ◽  
2017 ◽  
Vol 4247 (4) ◽  
pp. 391 ◽  
Author(s):  
YING-YONG WANG ◽  
QIANG GUO ◽  
ZU-YAO LIU ◽  
ZHI-TONG LYU ◽  
JIAN WANG ◽  
...  

The previous descriptions of Opisthotropis maxwelli Boulenger, 1914 and O. andersonii (Boulenger, 1888) were considered imperfect due to the limited number of specimens. This may in turn cause a problem for accurate species identification. In our study, the species boundaries of these two species were investigated using an integrative approach incorporating morphological characters and molecular phylogenetic analyses of the mitochondrial Cyt b gene of 26 specimens of nine known Opisthotropis species collected from south-eastern China. Our results surprisingly revealed a new cryptic species, Opisthotropis shenzhenensis sp. nov., from Shenzhen and Dongguan, Guangdong Province, southern China. Further, we re-described O. maxwelli based on several specimens from Fujian and Guangdong, and O. andersonii based on a series of specimens from Hong Kong, Shenzhen and Guangzhou, China. We provide an updated identification key to all described Opisthotropis species from China. 

Phytotaxa ◽  
2017 ◽  
Vol 309 (2) ◽  
pp. 135 ◽  
Author(s):  
JIA-JIA CHEN ◽  
LI LÜ ◽  
WEN-WU YE ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG

A new species of Pythiales: Pythium cedri, isolated from Cedrus deodara (Pinaceae) in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS+COI sequences. Pythium cedri belongs to Pythium clade D and is characterized by presence of hyphal swellings, toruloid sporangia, ornamented oogonia with blunt spines, monoclinous antheridia, plerotic or nearly plerotic oospores, and relatively slow growth (11–15 mm d–1). A key to accepted species of Pythium clade D is provided.


Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 239
Author(s):  
JIA-JIA CHEN ◽  
HUI FENG ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG

A new species of Peronosporales: Phytopythium nanjingense, isolated from the lake water of Nanjing in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS rDNA and Cox1 and Cox2 mtDNA sequences. Phytopythium nanjingense is heterothallic and characterized by aquatic habitat, ellipsoid, mostly obpyriform to ovoid-obpyriform, internally or internally nested proliferating sporangia with conspicuous apical papillae, smooth oogonia, hypogynous antheridia, filamentous antheridial cells, and plerotic or nearly plerotic and thin-walled oospores (0.5–1.6 µm). Differences between the new species and phylogenetically related and morphologically similar species are discussed.


Zootaxa ◽  
2019 ◽  
Vol 4695 (4) ◽  
pp. 301-330 ◽  
Author(s):  
LU WANG ◽  
XUEJIAN DENG ◽  
YONG LIU ◽  
QIANQIAN WU ◽  
ZHAO LIU

We describe a new species of Megophryidae frog, Megophrys shunhuangensis sp. nov., from Hunan Province, Southern China. It can be distinguished from other known species in the subgenus Panophrys by morphological characters, bioacoustic data and a molecular divergence in the mitochondrial 16S rRNA gene similar to that found among other species of Panophrys. M. shunhuangensis sp. nov. is characterized by a relatively small body size, with adult females measuring 37.6 mm and adult males measuring 30.3–33.6 mm in snout to vent length; maxillary teeth present, vomerine teeth absent; tongue smooth, not notched behind; hindlimb slender, heels overlapping, tibio-tarsal articulation reaches forward between the nasal and tip of snout. Molecular phylogenetic analyses also show that M. sp. 6 from (Mao’er Shan, China) from Chen et al. (2017) and M. sp. 24 (Anjiangping and Mao’er Shan, China) from Liu et al. (2018) may be the same species as M. shunhuangensis sp. nov., we consequently speculate that the new species also distributed in Anjiangping and Mao’er Shan, China. At present, the genus Megophrys contains 85 species of which 48 species are distributed in China, and 30 belong to the subgenus Panophrys. 


Zootaxa ◽  
2017 ◽  
Vol 4344 (3) ◽  
pp. 465 ◽  
Author(s):  
BENJAMIN TAPLEY ◽  
TIMOTHY CUTAJAR ◽  
STEPHEN MAHONY ◽  
CHUNG THANH NGUYEN ◽  
VINH QUANG DAU ◽  
...  

The Asian frog genus Megophrys is a diverse group of morphologically conserved, forest-dwelling frogs. The genus harbours highly localised species diversification and new species continue to be described on a regular basis. We examined the taxonomic status of a population of Megophrys frogs from the Hoang Lien Range in northern Vietnam and southern China previously identified as M. kuatunensis (subgenus Panophrys). Preliminary phylogenetic analyses using a fragment of 16S rDNA places the species in question within the Megophrys (subgenus Panophrys) species group, a primarily Chinese radiation within the genus. On the basis of morphological, molecular and bioacoustic data, we conclude that this population does not represent M. kuatunensis, or any known species in the genus. We herein describe this species of Megophrys as new. Known only from Sa Pa District, Lao Cai Province in Vietnam and Jinping County, Yunnan Province in China, the new species is likely to be threatened by ongoing deforestation in the region. We provide an updated species description of M. kuatunensis based on type specimens, and suggest that M. kuatunensis is likely to be restricted to eastern China.  


Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.


Phytotaxa ◽  
2019 ◽  
Vol 405 (1) ◽  
pp. 1 ◽  
Author(s):  
JIAN-JUN ZHOU ◽  
ZHANG-PING HUANG ◽  
JIA-HUI LI ◽  
SCOTT HODGES ◽  
WEI-SHENG DENG ◽  
...  

Based on morphological and molecular phylogenetic studies, Semiaquilegia danxiashanensis, a new species from Danxia Shan in northern Guangdong, southern China, is described and illustrated. This species is easily distinguishable from each of other three known species in the genus by characters of the flowers and fruits. In addition, molecular phylogenetic analyses of both the nuclear ITS and the plastid trnL-F region strongly supported S. danxiashanensis as a separate species from other species of Semiaquilegia. We provide a detailed morphological and habitat description, distribution, as well as colour photographs and illustrations of the new species.


Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 179-188
Author(s):  
XIANG-NYU CHEN ◽  
MING ZHANG ◽  
TAI-HUI LI ◽  
NIAN-KAI ZENG

Heimioporus sinensis, collected from tropical and subtropical areas of China, is introduced as a new species based on both morphological characters and molecular data. The species is characterized by the purplish red to deep magenta pileus, the reticulated stipe, the irregularly reticulate to reticulate-alveolate basidiospores 11.5–13.5 × 8–9.5 μm, and a trichodermal to intricately trichodermal pileipellis. Phylogenetic analyses based on the nuc 28S rDNA D1-D2 domains (28S) and the translation elongation factor 1-α gene (tef1-α) showed that H. sinensis is a distinct member of the genus Heimioporus in the subfamily Xerocomoideae.


2016 ◽  
Vol 91 (3) ◽  
pp. 360-370 ◽  
Author(s):  
D.H. Morais ◽  
A. Aguiar ◽  
M.I. Müller ◽  
R.B. Narciso ◽  
L.A.F. da Silva ◽  
...  

AbstractSerpentirhabdias viperidicus n. sp. (Nematoda: Rhabdiasidae) is described from the lungs of the ‘Brazilian lancehead’ Bothrops moojeni (Hoge, 1966) from the savannah in São Paulo State, Brazil. The new species is the eighth species of Serpentirhabdias described in the Neotropical region, and differs from other species mainly by a combination of characters: lips slightly notable, presence of fine striations at posterior ends, presence of two parallel lines with intercalated pores, a pore-shaped phasmid situated at the level of the anal aperture and another two in the posterior half of the tail. It is the first species of Serpentirhabdias reported in this snake host and the second species of this genus found parasitizing South American viperidian snakes. Molecular phylogenetic analysis using ribosomal (ITS and 28S partial) genes confirms Serpentirhabdias viperidicus n. sp. as a new species that clustered in the Serpentirhabdias clade, sister taxon to Serpentirhabdias fuscovenosa and Serpentirhabdias elaphe. This is the first description of Serpentirhabdias species from Brazil using molecular approaches and morphological characters to confirm the monophyly of this recent genus.


Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 89-100
Author(s):  
ZIA ULLAH ◽  
RUBAB KHURSHED ◽  
MUHAMMAD BINYAMIN KHAN ◽  
ISRAR AHMAD ◽  
SANA JABEEN ◽  
...  

During this investigation, a new species of Melanoleuca subg. Urticocystis with urticiform cheilocystidia is proposed. The identification is based on morphological characters and molecular phylogenetic analyses using ITS and 28S sequences. A comparison of the morphological features and molecular phylogenetic data with the taxa of subg. Urticocystis confirms the identity of the species as a new taxon. The detailed descriptions, line drawings and phylogenetic results are given.


Phytotaxa ◽  
2017 ◽  
Vol 332 (2) ◽  
pp. 172 ◽  
Author(s):  
TING LI ◽  
TAIHUI LI ◽  
CHAOQUN WANG ◽  
WANGQIU DENG ◽  
BIN SONG

Gerhardtia sinensis, as a new species discovered from southern China, is described, illustrated and compared with morphologically similar and phylogenetically related species. Morphologically, it is characterized by its white to yellowish or partially pale yellow pileus with faint striae, subdistant to fairly distant lamellae with intervenose veins, and slightly verruculose basidiospores (4.7–)5.2–6.2(–6.6) × (2.5–)3.0–3.4(–3.8) μm in size. Molecular phylogenetic analyses of the new species and related taxa are performed based on the sequences of nuclear ribosomal large subunit (nrLSU) and nuclear ribosomal internal transcribed spacer (ITS).


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