title: Variability of the number of rays and specification of the dorsal fin formula of black scorpionfish Scorpaena porcus Linnaeus, 1758 (Pisces: Scorpaenidae) from the Black Sea
abstract: \nThe meristic (countable) characters, in particular, to the number of rays in the fins are main signs among the morphological criteria of the species in fish. This is one of the most stable and not subject to resizing signs of fish morphotype. Moreover, it is a clear taxonomic criterion. The aim of the work is to study the variability of the number of rays in the dorsal fin and specification of the dorsal fin formula of black scorpionfish from the coast of the North Caucasus and Crimean shore o
journal: SHILAP Revista de lepidopterología