HERPETOLOGY OF JAPAN. 



189 



In the specimens from Ishigaki shima there are indistinct dark 

 cross bands on the back. The males have the throat more or less 

 uniform pale brownish gray, but in the females it is more whitish with 

 irregular though distinct reddish brown lines running obliquely from 

 the sides backward toward the median line. The coloring of the 

 throat is therefore very different from what it is in J. swinhonis. 



Dimensions. — Adult male; U.S.N.M. No. 12203; Kerama shima, 

 Riu Kiu; type (figs. 174-175). 



175 



Figs. 174-175.— Japalura polygonata. 2 X nat. size. 174, top of head; 175, side of head. 



No. 12203, U.S.N.M. 



mrti' 



Total length (tail defective) 189 



Snout to vent 66 



Vent to tip of tail (defective) 123 



Snout to center of eye 11 



Greatest width of head 15 



Fore leg 32 



Hind leg 55 



A full-grown male, with perfect tail, U.S.N.M. No. 34102, from 

 Ishigaki shima measures 61 mm. from snout to vent, and 152 mm. 

 from vent to tip of tail; total length 213 mm. 



Habitat. — Originally described from a single specimen collected by 

 the North Pacific Exploring Expedition on "Amakarima" Island, 

 i, e. Kerama shima, opposite Okinawa shima, this species has since 

 been found common on the latter island by Doctor Fritze and by 

 Mr. Tashiro. The Science College in Tokyo has several specimens 

 (No. 26) collected there by the latter, two of which have been pre- 

 sented to the United States National Museum. Mr. Fryer's speci- 

 mens, now in the British Museum, reported upon by Boulenger 

 probably also came from Okinawa. 



Doctor Boettger records a specimen presented to the Senckenberg 

 Museum by Maj. H. von Schoenfeldt as from 0-shima. 



