AMPHIBIAWEB
Babina okinavana
Ryukyu Brown Frog
family: Ranidae

© 1989 Norio Maeda (1 of 1)

AmphibiaChina 中国两栖类.

Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
CITES No CITES Listing
Other International Status None
National Status None
Regional Status None

 

View distribution map using BerkeleyMapper.

   

Description
The body of this species is stocky. The canthus is blunt, and the tympanum is circular. There are 3-6 vomerine teeth. The hindlimb webbing is poorly developed, and the tips of the fingers and toes are dilated into small discs with circummarginal grooves. The skin on the back contains some granules, and the sides are scattered with tubercles. The dorsolateral fold is evident. No vocal sac or opening exists. The males have poorly developed nuptial pads that have granules which are yellow in color. The glandular ridge is either absent or poorly developed in females. The mean snout to vent length for males is 42 mm (range 42-43), and for females it is 43 mm (range 42-44).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Japan, Taiwan

 

View distribution map using BerkeleyMapper.
R. okinavana is found on the islands of Ishigakijima and Iriomotejima in Japan. The species inhabits plains and mountainous regions. The species apparently occurs naturally in one pond on northern Taiwan.

Life History, Abundance, Activity, and Special Behaviors
18-80 brown eggs with a diameter of 1.7-2.2 mm are laid. The breeding period is from August to November. The mating call lasts 3 sec with 18 notes. This species has 5 large and 8 small pairs of chromosomes making 26 in total.

Comments

References

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 and Brian Petirs (shambika AT hotmail.com), UC Berkeley
First submitted 2001-10-16
Edited by Kellie Whittaker; David Wake (2016-05-16)

Species Account Citation: AmphibiaWeb 2016 Babina okinavana: Ryukyu Brown Frog <http://amphibiaweb.org/species/5116> University of California, Berkeley, CA, USA. Accessed Sep 25, 2017.



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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 25 Sep 2017.

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