Two new species of the freshwater-crab genus Demanietta Bott, 1966 (Decapoda: Brachyura: Potamidae) from southern Myanmar

2020 ◽  
Author(s):  
Bo-Yang Shi ◽  
Xiao-Yong Chen ◽  
Hong-Ying Sun
Keyword(s):  
New Species ◽  
16S Rdna ◽  
New Taxa ◽  
Molecular Analysis ◽  
Systematic Position ◽  
Freshwater Crab ◽  
Two New Species ◽  
Mitochondrial 16S Rdna

Abstract We describe two new species of the freshwater-crab genus Demanietta  Bott, 1966 from Tanintharyi (Tenasserim) division, southern Myanmar (Burma), Demanietta liui  sp. nov. and Demanietta lenya  sp. nov.  Demanietta liui  sp. nov. is morphologically most similar to D. thagatensis  Rathbun, 1904 and D. khirikhan  Yeo, Naiyanetr & Ng, 1999; D. lenya  sp. nov. appears close to D. manii  Rathbun, 1904, D. merguensis  Bott, 1966, and D. nakhonsi  Yeo, Naiyanetr & Ng, 1999. The two new species are easily distinguished from their most similar congeners in the shape of the external orbital tooth, epibranchial tooth, and male first gonopod. Molecular analysis based on partial mitochondrial 16S rDNA also supports the systematic position of the new taxa.

A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov. et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China

Zootaxa ◽  
2020 ◽  
Vol 4766 (3) ◽  
pp. 447-456 ◽  
Author(s):  
CHAO HUANG ◽  
SHENG-ZHUO HUANG ◽  
ZHI-XIN SHEN
Keyword(s):  
New Species ◽  
16S Rdna ◽  
Molecular Analysis ◽  
New Genus ◽  
Hainan Island ◽  
Freshwater Crab ◽  
General Biology ◽  
Rdna Sequences ◽  
16S Rdna Sequences ◽  
Mitochondrial 16S Rdna

A new genus and new species of terrestrial freshwater crab, Calcipotamon puglabrum gen. nov. et sp. nov., is described from the limestone forests of Changjiang, Hainan Island, China, based on morphology and mitochondrial 16S rDNA sequences. The new genus is closest to Neotiwaripotamon Dai & Naiyanetr, 1994, and Tiwaripotamon Bott, 1970, but differs in a combination of carapace, third maxilliped, ambulatory leg and male gonopod characters. Molecular analysis shows that the new genus is closely related with but not clustered within other Hainan potamid genera. Notes on the general biology of this new species are also provided. 

scholarly journals Two new species of freshwater crabs of the genera Eosamon Yeo & Ng, 2007 and Indochinamon Yeo & Ng, 2007 (Crustacea, Brachyura, Potamidae) from southern Yunnan, China

ZooKeys ◽  
2020 ◽  
Vol 980 ◽  
pp. 1-21
Author(s):  
Zewei Zhang ◽  
Da Pan ◽  
Xiyang Hao ◽  
Hongying Sun
Keyword(s):  
New Species ◽  
16S Rdna ◽  
New Taxa ◽  
Molecular Analyses ◽  
Systematic Status ◽  
Freshwater Crabs ◽  
Rdna Sequences ◽  
16S Rdna Sequences ◽  
Two New Species ◽  
Mitochondrial 16S Rdna

Two new species of potamid crabs, Eosamon daiaesp. nov. and Indochinamon malipoensesp. nov. are described from the Sino-Burmese border, southwestern Yunnan and from the Sino-Vietnamese border, southeastern Yunnan, China. The two new species can be distinguished from their closest congeners by several characters, among which is the form of the first gonopod structures. Molecular analyses based on partial mitochondrial 16S rDNA sequences also support the systematic status of these new taxa.

A new genus and new species of Potamidea (Crustacea: Decapoda: Brachyura: Potamoidae), the first stygomorphic cave crab known from China and East Asia

Zootaxa ◽  
2017 ◽  
Vol 4232 (1) ◽  
pp. 71 ◽  
Author(s):  
CHAO HUANG ◽  
HSI-TE SHIH ◽  
PETER K. L. NG
Keyword(s):  
New Species ◽  
East Asia ◽  
16S Rdna ◽  
New Genus ◽  
First Record ◽  
Molecular Data ◽  
Freshwater Crab ◽  
New Genus And Species ◽  
Body Coloration ◽  
Mitochondrial 16S Rdna

A new genus and species of freshwater crab, Diyutamon cereum n. gen., n. sp., is described from a cave in Guizhou, China. This is the first record of a true stygomorphic crab from China and East Asia, possessing pale body coloration, strongly reduced eyes, and long ambulatory legs. While superficially similar to Chinapotamon Dai & Naiyanetr, 1994, and Tiwaripotamon Bott, 1970, the new genus possesses a diagnostic combination of carapace, ambulatory leg, thoracic sternal, and male abdominal characters that easily distinguishes it from other genera. Molecular data derived from the mitochondrial 16S rDNA supports the establishment of the new genus. 

On the systematics of the weevil genus Araxia Khnzorian with descriptions of new taxa from Transcaucasia, Turkey, and Turkmenistan (Coleoptera: Curculionidae: Entiminae)

2008 ◽  
Vol 39 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Nikolai Yunakov ◽  
Boris Korotyaev
Keyword(s):  
New Species ◽  
New Taxa ◽  
Morphological Study ◽  
Type Species ◽  
New Genus ◽  
Systematic Position ◽  
New Combination ◽  
Eastern Turkey ◽  
Two New Species

AbstractThe purpose of this paper is a comparative morphological study of the little known monotypic weevil genus Araxia Khnzorian, 1957 and its close allies; redescriptions and figures are provided. A new systematic position for Araxia is proposed and discussed, its affinity with Chiloneus Schoenherr, 1842 and a new genus Holcolydoprus gen. n. is demonstrated. A new genus Holcolydoprus gen. n. is described with two new species H. bimaculatus sp. n. (type species) from Turkmenistan and H. griseus sp. n. from Transcaucasia and Eastern Turkey. The genus Aomus Schoenherr, 1834 is transferred from the tribe Laparocerini to Sciaphilini, its affinity with Eusomomorphus K. Daniel, 1905 is demonstrated. A new combination Eusomomorphus ilerii (Fremuth & Lodos, 1987), comb. n. is established for Aomus ilerii. A key to genera centering around Araxia is given.

Descriptions of a new species of Minpotamon Dai & Türkay, 1997, and a monotypic new genus of aquatic freshwater crab (Brachyura, Potamidae) from eastern Guangdong, China

Crustaceana ◽  
2020 ◽  
Vol 93 (11-12) ◽  
pp. 1295-1313
Author(s):  
Si-Ying Mao ◽  
Chao Huang
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
16S Rdna ◽  
New Genus ◽  
Freshwater Crab ◽  
Unique Combination ◽  
Rdna Sequences ◽  
16S Rdna Sequences ◽  
Mitochondrial 16S Rdna ◽  
A New Species

Abstract A new genus new species of freshwater crab and a new Minpotamon Dai & Türkay, 1997 species are described from eastern Guangdong, China, based on morphology and mitochondrial 16S rDNA sequences. The new genus, Teoswamon gen. nov., is established for T. scolasticum sp. nov., which resembles species from several other genera from Guangdong, but its unique combination of carapace, male gonopod and female vulvae characters set it apart from others. Minpotamon kityang sp. nov. is almost identical with Minpotamon nasicum (Dai, Chen, Song, Fan, Lin & Zeng, 1979) externally, but differs drastically in the male gonopod morphology. Molecular analysis supports the current taxonomic treatments. Teoswamon scolasticum sp. nov. forms its own lineage closely related to Huananpotamon Dai & Ng, 1994. Minpotamon kityang sp. nov. clusters with Minpotamon nasicum, but their genetic distance is of an interspecific level.

Eriophyidae mites from Cupania trees (Sapindaceae) from the Atlantic Forest in Brazil: three new genera and five new species

2017 ◽  
Vol 22 (3) ◽  
pp. 341
Author(s):  
Mercia Elias Duarte ◽  
Edmilson Santos Silva ◽  
Denise Navia
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
New Taxa ◽  
New Genus ◽  
New Genera ◽  
Native Trees ◽  
Two New Species ◽  
One New Species

Eight new taxa of Eriophyidae mites associated with native trees in the Cupania genus—C. oblongifolia Mart. and C. impressinervia Acev (Sapindaceae)—from the Atlantic Forest in Brazil, are described and illustrated. They include two new genera and two new species of Nothopodinae, Colopodacini (Setibia domatiagena   gen. nov., sp. nov. and Aricolopodos alagoensis gen. nov., sp. nov.), one new genus and two new species of Cecidophyinae, Colomerini (Euryslobos keronidos gen. nov., sp. nov. and Gammaphytoptus cupanius sp. nov.), and one new species of Phyllocoptinae, Tegonotini (Shevtchenkella caboata sp. nov.).

Sticholeia - a new genus of Leiini, with comments on the systematic position of Allactoneura de Meijere (Diptera: Mycetophilidae)

1996 ◽  
Vol 27 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Geir E.E. Söli
Keyword(s):  
New Species ◽  
New Genus ◽  
New Guinea ◽  
Systematic Position ◽  
Two New Species

AbstractA new genus, Sticholeia, is erected to comprise two new species, cheesmanae and dolichostyla, from New Guinea and Vanuatu, respectively, and an unnamed female from Indonesia. Members of the new genus have two ocelli, a row of strong bristles near the hind margin of the eyes, tibial trichia arranged in regular rows, and strongly prolonged male terminalia. Despite featuring some characters supposed to be diagnostic for the subfamily Manotinae, the new genus is attributed to the tribe Leiini of Sciophilinae. The genus may represent the sistergroup of Allactoneura de Meijere plus Leiella Enderlein. Judged from the distribution of characters among Leiini the monotypic tribe Allactoneurini is rejected.

New taxa of the subtribe Lebinthina (Orthoptera: Gryllidae: Eneopterinae: Lebinthini) from New Guinea and nearby islands

Zootaxa ◽  
2021 ◽  
Vol 5082 (6) ◽  
pp. 583-599
Author(s):  
MING KAI TAN ◽  
TONY ROBILLARD
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Taxa ◽  
New Guinea ◽  
Two New Species

Four new species from three genera of Lebinthina crickets are described here. These include one species of Gnominthus: Gnominthus milneus sp. nov. from Papua New Guinea; two new species of Macrobinthus: Macrobinthus kei sp. nov. and Macrobinthus mamai sp. nov. from Maluka (Indonesia) and Papua New Guinea, respectively; and one species of Microbinthus: Microbinthus elegans sp. nov. from Papua New Guinea.  

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