Re-examination of Cambaroides koshewnikowi and C. wladiwostokiensis with Morphological Observations of the Antennules and Gastric Mill of the Cambaroididae


 The syntypes of the freshwater crayfish, Cambaroides koshewnikowi (Birstein and Vinogradov, 1934) and C. wladiwostokiensis (Birstein and Vinogradov, 1934), held in the Zoological Museum of Moscow University are re-examined, the type series are described and illustrated. Detailed information on geographical distribution, natural habitat and fecundity of Russian cambaroid species are provided. Also, morphological features of the gastric mill and the lateral ramus of the antennule of Cambaroides are exhibited for future examination of their phylogeny.