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1.
Zootaxa ; 4819(1): zootaxa.4819.1.5, 2020 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-33055672

RESUMO

Vanmanenia intermedia, which has long been synonymized with V. pingchowensis since 1980, is here revalidated using morphological characters and molecular evidences, and redescribed on the basis of topotypic specimens. This species is distinguished from all other congeneric species by the following combination of characters: triangular-shaped rostral lobules without secondary rostral barbels; distal edge of dorsal-fin slightly concave; no longitudinal black stripe on the flank; a longer snout (length 52.6-64.5 % of HL); a more backwards-placed anus (the vent to anal distance 34.7-46.1% of the pelvic to anal distance); a slender caudal peduncle (depth 9.1-11.3 % of SL); a longer anal-fin base (length 7.5-9.5 % of SL); and a smaller gill opening with its upper extremity closer to the level of the lower margin of the orbit. The validity of V. intermedia is also confirmed by its significant cyt b gene sequence divergence with all sampled congeneric species and its monophyly recovered in the cyt b gene-based phylogenetic analysis.


Assuntos
Cyprinidae , Cipriniformes , Animais , China , Filogenia , Rios
2.
Zootaxa ; 4476(1): 94-108, 2018 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-30313344

RESUMO

Garra dengba is here described from the Chayu-Qu, a tributary flowing into the Brahmaputra River, in Chayu County, eastern Tibet, China. It shares the presence of an incipient proboscis on the snout with G. arupi, G. elongata, G. gravelyi, G. kalpangi, and G. rotundinasus, but is distinguished from these five species in having, among other features, fewer branched dorsal- and anal-fin rays and more perforated lateral-line scales. Its validity was also confirmed by a molecular phylogenetic analysis based on the cytochrome b gene.


Assuntos
Cyprinidae , Filogenia , Animais , China , Rios , Tibet
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