90 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



How unreliable a character is furnished by the comparative length of 

 the hind legs is shown by Hoist's Riukiu specimens. In the smallest 

 of these the tibio-tarsal joint just reaches the snout; in the medium- 

 sized specimens it goes considerably beyond the snout, and in the 

 largest one only to the front of the eye. 



The United States National Museum has now a large series from 

 Ishigakishima, the first record from this group. They agree dis- 

 tinctly with the Okinawa type and not with the Formosa specimen, 

 which we also now possess. 



Brown's Microhyla undulata is the same as the present species and 

 is published six months later. It is stated in the original description 

 that the toes are "half-webbed," but that is a mistake, as an examina- 

 tion of the types in the Wistar Institute in Philadelphia showed me. 

 The web in these specimens, as in the others, is between the metatar- 

 sals, while only a small portion of it extends beyond the base of the 

 toes. 



Description of type. — Adult female; U.S.N.M. No. 36553. Oki- 

 nawa shima; Sci. Coll. Mus. Tokyo No. 25a (figs. 71-75). — Snout 

 71 73 75 rather pointed, slightly longer 



than diameter of orbit; inter- 

 orbital space broader than up- 

 per eyelid; first finger much 

 shorter than second ; toes with 

 a distinct though slight web at 

 base and a mere indication of 

 a fringe along the toes ; tips of 

 fingers and toes not widened ; 

 subarticular tubercles very dis- 

 tinct; metatarsal tubercles 

 rather large, the inner measur- 

 ing more than one-half the 

 orbital diameter; the hind 

 limb being carried forward along the body, the tibio-tarsal joint 

 barely reaches the eye; skin smooth above and on sides. Color 

 (in alcohol) of a purplish gray above, with a light, very narrow median 

 line from tip of snout to above anus; a spear-shaped dark brownish 

 mark on occiput, from between the eyes, with the tip pointing back- 

 ward and widening into two wavy dark bands which diverge toward 

 the groins, contracting again on the sacrum, ending on the upper 

 side of the thighs and embracing a space on the back somewhat 

 darker than the ground color; outside of these bands and parallel 

 with them are several faint, wavy lines of a dusky color; a dark 

 brownish band of considerable width starts at the tip of the snout, 

 covering the sides of face and neck, runs backward above the arm, 

 is lost on the groin but reappears on the anterior aspect of the thigh; 



72 



74 



Figs. 71-75.— MiCEOHYLAOKINAVENSIS. \i XNAT. 

 SIZE. 71, TOP OF head; 72, SIDE OF HEAD; 73, 

 OPEN mouth; 74, UNDERSIDE OF HAND; 75, tTN- 

 DEESIDE OF FOOT. No. 3655.3, U.S.N.M. 



