Female Cloacal Opening
A cloacal region of a gravid female just before oviposition that was captured from the water (water temperature = 9.3 C, water pH = 5.5) in the salamander Hynobius hidamontanus inhabiting Hokujo, Hakuba-mura, Nagano Prefecture, Japan (photographed on 5 May 2006). Note a cloacal opening that changed from a slit into a hole. In this condition, deposition of egg sacs would occur soon.
Accompanied Research Collaborators (alphabetical order): Iwao Hasegawa (Takefu, Fukui Prefecture), Masaichi Kakegawa (Tokyo Metropolitan Komatsugawa Senior High School), and Fujio Kishi and Yuko Saikawa (Shirouma Association of Naturalists).
Copyright 2006 Masato Hasumi, Dr. Sci. All rights reserved.
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