A new species of Triplophysa Rendahl (Cypriniformes, Nemacheilidae) from Sichuan Province, China.

Dongwuxue Yanjiu

College of Life Sciences, China West Normal University, Nanchong Sichuan 637009, China.

Published: September 2015

AI Article Synopsis

  • Triplophysa yajiangensis sp. nov. is a newly described fish species found in the Yalong River in Sichuan Province, China.
  • The species can be identified by its unique features, including a smooth, scaleless body, complete lateral line, and a shovel-shaped lower jaw.
  • Notable anatomical characteristics include a compressed caudal peduncle, specific dorsal-fin position, hard last unbranched ray, pelvic-fin length, absence of a posterior gas bladder chamber, and a spiral intestine with 3-5 coils.

Article Abstract

Triplophysa yajiangensis sp. nov. is described from the upper and middle reaches of the Yalong River, Yangtze Basin, Ganzi Prefecture, Sichuan Province, China. This new species can be distinguished from other congeneric species by the following characters: body surface smooth and scaleless; lateral line complete; caudal peduncle compressed and tapered slightly; lower jaw shovel-shaped; head shorter than caudal peduncle; dorsal-fin origin anterior to pelvic-fin origin and closer to tip of snout than to caudal-fin base, last unbranched ray hard; pelvic-fin reaches or exceeds anus; posterior chamber of gas bladder absent; intestine spiral type with 3-5 winding coils.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771960PMC
http://dx.doi.org/10.13918/j.issn.2095-8137.2015.5.299DOI Listing

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