| OCR Text |
Show 522 ON THE LIZARDS OF THE GENUS SCELOPORUS. [May 18, from the smaller entire-edged ventrals; 40 scales between the interparietal shield and the base of the tail; 10 dorsal scales correspond to the length of the head. Tibia longer than the shielded part of the head. 13 or 14 femoral pores on each side. General colour blackish above, with numerous indistinct lighter cross-bars; or light brown with a double longitudinal series of transverse black spots and a yellow dorso-lateral band; yellowish or greenish inferiorly. From snout to vent 68 millim. Hab. Colima, Mexico. I have not seen examples of this species. 32. SCELOPORUS COUCHTI. Sceloporus couchil, Baird, Proc Ac. Philad. 1858, p. 254; Bouleng. Cat. Liz. ii. p. 231 (1885). Head-shields smooth; frontal transversely divided; interparietal large, as long as broad, separated from the frontal by a pair of small shields; parietals small, two on each side ; two canthal scales ; five transversely enlarged supraoculars, bordered inwards by one series of scales and separated from the supraciliaries by two or three series ; four slightly enlarged, pointed scales form a denticulation on the anterior border of the ear. Dorsal scales small, not larger than ventrals, keeled, truncate or rounded behind, forming parallel longitudinal lines ; 82 scales between the interparietal shield and the base of the tail; 20 scales, taken in the middle of the back, correspond to the length of the shielded part of the head ; lateral scales minute, granular, much smaUer than dorsals and ventrals. Ventral scales smooth, entire. 108 scales round the middle of the body. The adpressed hind limb reaches the posterior border of the orbit; tibia as long as the distance between the end of the snout and the ear ; the distance between the base of the fifth toe and the extremity of the fourth equals the distance between the end of the snout and the middle of the collar-fold. Femoral pores 17-18 (25 in the type). Caudal scales much larger than dorsals, strongly keeled and shortly mucronate. Males with enlarged postanal scales. Dark olive above, with an interrupted bluish-white lateral stripe ; sides spotted with bluish white; a black white-edged ocellus with blue centre in front of the shoulder; lips white wdth black vertical bars. Throat wdiite with dark blue oblique streaks converging posteriorly ; breast and middle of belly white ; sides of belly blue, wdth blackish inner edge. Hab. The type is from Santa Catharina, Nuevo Leon. The single specimen I have examined, a male measuring 57 millim. from snout to vent, was obtained in Duval Co., Texas, by Mr. W . Taylor. EXPLANATION OP PLATE XXXIII. Sceloporus asper, male, upper and under views. |
