Phenetic relationships and diagnostic features of sculpins of the genus Asprocottus (Scorpaeniformes: Cottoidea)

  • Bogdanov B.E. 1
  • 1 Limnological Institute, Siberian Branch of the Russian Academy of Sciences, Ulan-Batorskaya Str., 3, Irkutsk, 664033, Russia
Keywords: Asprocottus, systematics, morphology, phenetic relationships, diagnostic features, Lake Baikal


Aimed at the study of phenetic and taxonomic relationships of Baikal endemic sculpins of the genus Asprocottus Berg 1906, the author has carried out a morphometric investigations by 11 meristic and 29 plastic characters as well as analyzed nonmetric features: coloration peculiarities of specimens, form and location of bony spinelets on the integuments, morphology of the sensory system organs and the number of preopercular spines. The results of the study have confirmed the validity of seven species: A. herzensteini, A. abyssalis, A. intermedius, A. korjakovi, A. parmiferus, A. platycephalus, and A. pulcher. Based on the revision of the diagnostic features, the author proposes the new key to determine species.