Babina holsti
Holst's Frog, (Dagger Frog)
family: Ranidae
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
Other International Status None
National Status None
Regional Status None



View distribution map using BerkeleyMapper.

R. holsti has a relatively large and robust body. The species has 6-7 vomerine teeth. There is moderate hindlimb webbing. The skin of the back is almost smooth with a few small granules. The sides are covered with tubercles that have white granules on the tips. There is a dorsolateral fold. The mean snout to vent length for males is 107 mm (range 100-124) and for females it is 115 mm (range 103-119). There is a pair of vocal openings on the inner sides of the mouth. The males have poorly developed nuptials with white spinules and their throats are covered with granules.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Japan


View distribution map using BerkeleyMapper.
This species generally lives in mountainous regions. It is found on Okinawajima and Tokashikijima Islands in Japan.

R. holsti is a close relative to R. subaspera. R. holsti feeds on snails, grasshoppers, Hemiptera, and small snakes.


Maeda, N. and Matsui, M. (1990). Frogs and Toads of Japan, 2nd edition. Bun-Ichi Sogo Shuppan Co., Ltd., Tokyo, Japan.

Written by Ambika Sopory (shambika AT, UC Berkeley
First submitted 2001-10-22
Edited by Vance Vredenburg (2001-12-18)

Species Account Citation: AmphibiaWeb 2001 Babina holsti: Holst's Frog <> University of California, Berkeley, CA, USA. Accessed Feb 16, 2020.

Feedback or comments about this page.


Citation: AmphibiaWeb. 2020. <> University of California, Berkeley, CA, USA. Accessed 16 Feb 2020.

AmphibiaWeb's policy on data use.