A New Species of the Pond Loaches Misgurnus (Cobitidae) from the South of Sakhalin Island

A new species of pond loaches is described from the systems of Chibisanskiye–Vavaiskiye lakes in the south of Sakhalin Island. This species is distinguished from all other Misgurnus species by having a moderately deep body (maximum body depth 7.3–8.6 times in standard length, SL ); poorly developed...

Full description

Saved in:
Bibliographic Details
Published in:Journal of ichthyology 2022-06, Vol.62 (3), p.356-372
Main Authors: Shedko, S. V., Vasil’eva, E. D.
Format: Article
Language:English
Subjects:
Animal morphology
Biomedical and Life Sciences
Cobitidae
Fins
Genes
Genetic analysis
Genetic markers
Interphotoreceptor retinoid-binding protein
Lakes
Life Sciences
Misgurnus
Mitochondria
New species
Phylogeny
Ponds
RAG1 protein
Thermal energy
Zoology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new species of pond loaches is described from the systems of Chibisanskiye–Vavaiskiye lakes in the south of Sakhalin Island. This species is distinguished from all other Misgurnus species by having a moderately deep body (maximum body depth 7.3–8.6 times in standard length, SL ); poorly developed adipose crests; elongated caudal peduncle with its length usually exceeding 19% SL ; caudal peduncle depth 1.9–2.4 times in length; dorsal fin begins much closer to the tip of the snout than to the end of the caudal fin; short pelvic fins with their length 1.2–1.7 times in length between the pelvic and anal fins in males and 1.7 times in females; length from pelvic fin base to anal fin base 1.9–2.4 times in the length from anal fin base to caudal fin base; more than 140 transverse rows of scales in the side series; lamina circularis rounded and flat; no distinct black spot at the upper base of the caudal fin. Analysis of several genetic markers (mitochondrial cyt b and fragments of nuclear genes Rag1 and IRBP ) proved that the new species is an independent phylogenetic lineage within Misgurnus , the same rank as the M. nikolskyi lineage or the group including M. mohoity and M. anguillicaudatus .
ISSN:0032-9452
1555-6425
DOI:10.1134/S0032945222030158