224 G. A. BOULENGER ON 



or two small shields or by the parietals meeting in the middle. 3 or 4 supraoculars, 1 

 first, if present, very small or reduced to a granule, second usually longer than 

 the third, fourth small and sometimes broken up into granules ; 4 or 5 superciliaries , 

 first and second elongate, first often in contact with the second supraocular ; a com- 

 plete or incomplete series of granules between the supraoculars and the superciliaries. 

 Nasal usually forming a suture with its fellow behind the rostral 9 ' and with the 

 anterior loreal above the postnasal, which may be very small or absent ; 3 anterior 

 loreal shorter than the second ; 4, rarely 5/ upper labials anterior to the subocular, 

 which is usually not or but little narrower beneath than above. Temporal scales 

 very small, granular, obtusely keeled, 10 to 15 on a line between the orbit and the 

 tympanum j an enlarged anterior upper temporal, exceptionally 6 in contact with the 

 fourth supraocular ; a very narrow tympanic shield usually present. 



3 pairs of chin-shields, first or first and second, exceptionally all three,' 5 in con- 

 tact in the middle. 21 to 34 gular scales in the median line, anterior granular and 

 faintly keeled, posterior increasing in size, imbricate, keeled, and merging gradually 

 into the plates of the very distinct collar, which are pointed, keeled, and 10 to 13 in 

 number. 



Dorsal plates truncate, obtusely pointed or rounded behind, in 8 or 10, rarely 

 7, longitudinal series on the body, equal or the median pair smaller and more 

 irregular, often in 10 series anteriorly and 7 posteriorly. A lateral series of large keeled 

 scales, corresponding to the light lateral streak, separated from the ventral plates by 

 2 or 3 series of smaller scales and from the dorsals by a broad granular area. Ventral 

 plates pointed and mucronate, strongly keeled, in 6 or 8 longitudinal and 26 to 31 

 transverse series. 37 to 45 plates and scales round the middle of the body. Prseanal 

 plate rather large, entire and often bicarinate in males, usually longitudinally divided 

 in females, with smaller keeled plates on the sides. 



Upper surface of limbs with rhombic keeled scales. A single femoral pore on each 

 side. Subdigital lamella? mostly divided, 23 to 27 (exceptionally 31) under the fourth 

 toe. 



Caudal scales strongly keeled and shortly mucronate, in subequal whorls, the 

 fourth containing 14 to 18 scales. 



Bright green above ; a pale yellow streak along each side, from the upper lip to 

 the groin or to above the axil, passing below the tympanum ; ' males usually with a 

 broad grey or bronzy lateral band above the yellow streak. Lower parts greenish 

 yellow. 



1 Of the 11 type specimens before me, 5 have 4 supraoculars, 5 have 3, and one has 4 on one side and 3 on the other 

 In the original description I noted 4 supraoculars in 19 cases out of 26. 



i Van Denburgh finds the rostral in contact with the frontonasal in about 69 p. cent, of the specimens from Amami, 

 in about 10 p. cent, of those from Kikaiga. and in about 5 p. cent of those from Okinawa. 



3 Absent in one specimen. ■* On one side only in 3 specimens 



6 In one specimen. 



6 In one specimen. — Van Denburgh finds, 4 pairs in 12 cases, and 3 on one side and 4 on the other in 16, out of 151 

 specimens. 



1 The specimens from Miyako examined by Van Denburgh show no trace of the light lateral streak, even on the 

 head. In some of the specimens from the Northern islands there is a light dorso-lateral streak. 



