Rana okinavana Boettger, 1895

Chuaynkern, Yodchaiy, Ohler, Annemarie, Inthara, Chantip & Duengkae, Prateep, 2010, A Revision Of Species In The Subgenus Nidirana Dubois, 1992, With Special Attention To The Identity Of Specimens Allocated To Rana Adenopleura Boulenger, 1909, And Rana Chapaensis (Bourret, 1937) (Amphibia: Anura: Ranidae) From Thailand And Laos, Raffles Bulletin of Zoology 58 (2), pp. 291-310 : 302

Rana okinavana Boettger, 1895

Rana okinavana Boettger, 1895: 266 . [Syntypes: SMF (2 specimens), Bremen Mus.; SMF 5830 (formerly SMF 1047.3a), designated lectotype by Mertens (1967). Type-locality: Liukiu (= Ryukyus), Japan.]

Rana psaltes Kuramoto, 1985: 150 . [Holotype: FUE 80320, by original designation. Type-locality: near the Kampira Falls (Urauchi River), Iriomote Island, Ryukyu Islands, Japan. Synonymy by Matsui (2007).]

Material examined. – Japan: Ryukyu Province, Omotadake [NMNS 3430 (4426), 3438 (4455), 3438 (4456), 3466 (4602), 3466 (4603)].

Taxonomic notes. – Recently, an examination of the lectotype and a paralectotype of Rana okinavana revealed that the species is identical with R. psaltes . Therefore, the name R. psaltes is relegated to a subjective junior synonym of R. okinavana (see Matsui, 2007). This author stated that R. psaltes from Taiwan ( Chou, 1994) should be mentioned as R. okinavana too.

Diagnostic characters. – Rana okinavana is characterized by the following combination of characters: (1) body stocky; (2) SVL of adult males 41.6 ± 1.4 (40–42.8 mm), adult females 46.7 ± 2.9 (44.6–48.8 mm); (3) nostril directed laterally; (4) marginal grooves on fingers present or absent; (5) marginal grooves on toes present; (6) mid-dorsal stripe present; (7) external vocal sac absent; (8) nuptial pad poorly developed, absent on prepollex but present as small pad on median surface of first finger; (9) suprabrachial gland present and elongate; (10) nest construction behavior present; (11) spinules on back absent in adult males and females; (12) spinules on ventrum absent in adult males and females; (13) tibio-tarsal articulation reaching eye center to near nostril; (14) finger tips dilated; (15) toe tips dilated; (16) relative length of fingers II<I<IV<III; (17) relative length of toes I<II<V<III<IV; (18) pigmented eggs; (19) larval keratodont formula 1:1+1/1+1:2; (20) Calling: 17–25 loud, fast-repeated, “gulo” pulses.

Distribution. – Japan (Ryukyu Province).