138 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



contained two and one-lialf times in the leniith, whicli about equals 

 the diameter of the eye; no outer tubercle; a well-developed mem- 

 branaceous fold alono- the outer edge of the fifth toe ; a tarsal fold ; the 

 tibio-tarsal joint does not reach the eye; the heels do not meet by 

 a distance greater tlian the diameter of the eye when the hind limbs 

 are bent at right angles to the axis of the body; skin above nearly 

 smooth, very loose, and apparently transversely wrmkled; a well- 

 marked fold from posterior corner of eye to above fore limb and 

 another less distinct from under the eye backward parallel with the 

 former. Color above brown, with a broad dark band between and 

 including the posterior half of the upper eyelids, with the faintest 

 trace of a lighter band in front of it; lower surface whitish, clouded 

 with dusky, especially on the throat and chin. 



Dimensions. 



mm. 



From snout to vent 116 



From snout to corner of moiith 40 



Width of head 53 



Diameter of eye 9 



Width of upper eyelid 8 



Interorbital width 12 



From eye to nostril 9 



From eye to end of snout 18 



■From snout to fore limb 48 



Fore limb 62 



Hind limb • 138 



Tibia 45 



Foot 60 



Inner toe 12 



Inner metatarsal tubercle 9 



Variation. — Another large specimen is in the Science College 

 Museum, collected by Mr. S. Ungawa in. Okinawa shima. It has nu- 

 merous longitudinal tubercular ridges, and the skin is transversely 

 wrinkled on the posterior part of the back only. The interocular 

 light band is very pronounced. 



A much smaller specimen in the same museum (No. 18), also from 

 Okinawa shima, and collected by Mr. Nakagawa, differs chiefly in hav- 

 ing the head proportionally less broad, the bony tubercles on the 

 mandible less developed, vomerines placed a little more forward, 

 tympanum pretty well defined, and first finger slightly extending 

 beyond second. The skin of the back, eyelids, and thighs is strongly 

 rugose with warts more or less connected by longitudinal ridges; no 

 transverse plaiting. Upper lips with large blackish spots; trans- 

 verse dark band between eyes very distinct, the light one less so. 



At this age it resembles distantly some specimens of R. tigerina, 

 from which it differs, however, in most essential points. Thus the nos- 

 trils are placed more forward; the interorbital space is much broader; 



