Cytogenetic Studies in Lower Vertebrates, II

Karyological studies of several species of frogs (Ranidae)

Abstract

The karyotype analysis was undertaken in six members of the Ranidae based on current technique with adult bone marrow cells, with special regard to the relationship between the karyotype and taxonomical feature.
Karyotypes of two subspecies of R. tenzporaria temporaria and R. t. ornativentris were basically identical with each other.
The karyotypes of R. Japonica, nigronzaculata, rugosa and catesbiana were generally similar from one another in both number and morphology, though two identifiable features were found to occur in nigroznaculata and catesbiana.
Comparison of the karyotypes in both sexes demonstrated no significant morphological difference, no heteromorphic pair having been detected either in males or in females.