HERPETOLOGY OF JAPAN. 181 



supralabials ; mental shield rather small, triangular, followed by six 

 chin-sMelds in one transverse series, their posterior outline forming 

 together a straight line, the median pair being large, elongate 

 pentagonal, the others gradually smaller toward the sides, the 

 largest pair longer than diameter of eye; 9 large lower labials; body 

 and legs above covered with small uniform granules like those on 

 head; throat wath granular scales of same size as those on back, 

 those on rest of under surfaces, including those of the legs, larger, 

 distinctly imbricate, and rounded behind; on the flanks a barely 

 indicated longitudinal fold, and a somewhat better developed fold 

 along the posterior edge of thigh and tibia; toes slightly webbed 

 at base; about S pairs of lamellae under longest toe and 6 under 

 the shortest; tail (reproduced) rather flat, with sharp, finely ser- 

 rated lateral edge, covered, with small, somewhat pointed, imbri- 

 cate scales above and with a median series of wide plates bordered 

 on each side by a somewhat irregular series of enlarged scales; 

 about 5 mm. fi'om the base the tail has a distinct lateral indenta- 

 tion; no femoral pores. Color (in alcohol) above browinish drab 

 with faint indications of darker marblings, below w^hitish. 



Dimensions. 



mm. 



Total length 60 



Snout to vent 33 



Vent to tip of tail 27 



Snout to ear-opening 8.5 



Greatest width of head 7 



Hind leg, from groin 12 



Remarlcs. — The specimen agrees in most ])articulars with other 

 specimens of this species. 



The 7nales have femoral pores in a continuous angular series 

 across the abdomen, 14 to 19 on each side. 



For further remarks as to variation, etc., see Proceedings United 

 States National Museum, XXI, 1899, p. 798. 



Habitat. — Irregularly distributed over various islands and coasts 

 in the Indian Ocean, from the Mascarenes and wSeychelles to the 

 Philippines. This species seems very easily transported in ships, as 

 evidenced by an apparently recent colony in western Mexico, and 

 another in Hawaii. Its occurrence in Formosa and the Riu Kius is 

 therefore not surprising. It was collected in Formosa during the 

 early sixties by Capt. von der Ohe, who brought a single specimen to 

 the museum at Bergen, Norway. This is the only record of its hav- 

 ing been taken in Formosa. 



Another specimen is in the Hamburg Museum (Saur., No. 1151), 

 collected by Doctor Warburg in the Riu Kius, without further data. 



