Adult males of Hynobius retardatus were collected in the field throughout the year except winter months, and the seasonal changes in the testes, fat bodies and Wolffian ducts were examined anatomicall
Eggs in an egg sac of Hynobius nigrescens have nearly 100% fertilizability even after three hour-long immersion in water. Promptly inseminating in water seems to be extrinsic embryologically in this s
Using 30 adult specimens of Hynobius lichenatus collected at Tagami-Mura, Niigata Prefecture, the variation in digital development in the hind leg was examined externally and osteologically. The fifth
Using stomach content analysis, I assessed effects of head morphology of larval salamanders (Hynobius retardatus) on the selectivity of diets in nature. Large-headed morphs of the larvae chiefly ate t...