| OCR Text |
Show 1897.] LIZARES OF THE GENUS SCELOPORUS. 511 sometimes tinged with rusty or orange on the throat and the sides of the belly ; throat sometimes marbled with grey. Hab. This species appears to be distributed over the greater part of Mexico, in the mountains up to 9000 feet. 21. SCELOPORUS HETEROLEPIS. Sceloporus heterolepis, Bouleng. Proc. Zool. Soc. 1894, p. 731, pl. xlviii. fig. 4. Head-shields smooth; frontal transversely divided, in contact with the interparietal, or separated from it by a small azygous shield; interparietal as long as broad, or broader than long; parietals small, sometimes indistinct; one or two more or less irregular series of transversely enlarged supraoculars, the series surrounded by smaller scales ; two canthal scales; anterior border of ear with a denticulation formed by three or four pointed scales. Dorsal scales very unequal in size, irregular, some nearly smooth, others strongly keeled; a pair of vertebral and a dorso-lateral series of large strongly-keeled scales form sorts of crests along the body ; 45-75 scales along the median line between the interparietal shield and the base of the tail, 10-13 corresponding to the length of the shielded part of the head. Lateral scales imbricate, small, directed obliquely upwards and backwards. Ventral scales small, smooth, mostly bicuspid. 56-68 scales round the middle of the body. The hind limb reaches the shoulder or the ear; tibia as long as the shielded part of the head; the distance between the base of the fifth toe and the extremity of the fourth exceeds the distance between the end of the snout and the posterior border of the ear. 14 to 19 femoral pores on each side. Caudal scales as large as largest dorsals, strongly keeled, spinose. Males wdth enlarged postanal scales. d d d d d d 2 2 2 2 2 d d La Cumbre de los Buller. it tt 1 Eeal Alto. Buller Sierra de Boianos. Arrastrados. Buller 1. 64 61 61 58 58 56 59 58 58 49 49 51 59 2. 13 13 13 13 12 12 12 12 12 11 11 11 13 3. 14 14 14 14 13 13 13 13 13 12 12 12 14 4. 13 13 13 13 13 12 12 12 12 10 11 11 13 5. 17 17 16 17 17 16 15 15 15 14 15 15 17 6. 75 58 73 51 59 62 59 56 65 53 59 61 45 7. 13 12 13 11 13 12 12 11 11 10 10 12 10 8. 62 60 58 62 56 62 58 58 60 58 62 66 68 9. 17-17 16-16 14-14 17-17 16-15 18-17 17-19 18-16 16-16 15-17 17-16 15-17 17-16 Coloration very much as in S. microlepidotus. Greyish or pale brown above, with indistinct darker and lighter blotches and symmetrical blackish markings in the form of transverse or angular 34* |
