OCR Text |
Show 1897.] LIZARDS OF THE GENUS SCELOPORUS. 483 forming parallel longitudinal series ; 26 or 27 scales between the interparietal shield and the base of the tail; 6 or 7 scales correspond to the length of the shielded part of the head. Lateral scales keeled, directed upwards and backwards, graduating into the dorsals and ventrals. Ventral scales smooth, bicuspid. 36 to 40 scales round the middle of the body. The adpressed hind limb reaches the shoulder or the ear ; tibia a little shorter than the shielded part of the head; the distance between the base of the fifth toe and the extremity of the fourth equals the distance between the end of the snout or the nostril and the ear. 18 to 21 femoral pores on each side. Caudal scales nearly as large as dorsals, strongly mucronate. Males wdth enlarged postanal scales. o*. rf. $ • S. Domingo de Guzman. )) )! >! 1) Buller... ,j ... J j • • • 1. 98 66 98 2. 23 15 23 3. 25 17 27 4. 20 13 21 5. 23 18 23 6. 26 27 27 7. 6 7 6 8. 36 36 40 9. 20-19 21-21 20-19 Yellowish or greyish olive above ; a yellowish, black-edged crossbar between the eyes ; upper surface of snout sometimes blackish; a yellowish band on each side from behind the eye to above the axilla, between which a blackish blotch or bar extends across the scapular region ; some less distinct dark cross-bars may follow^ on the back. Male with the lower surface of the head black-and-white in front, pale blue behind, yellowish green on the sides ; the breast and median line of belly salmon-red; the belly pale blue near the median line, yellowish green on the sides. Female yellowish white beneath, with some chevron-shaped brown markings, pointing backwards, on the throat. Hah. Isthmus of Tehuantepec. Bocourt states that the single male specimen examined by him lacks the enlarged postanal scales. Notwithstanding this disagreement with the specimens before me, I do not entertain any doubt as to the correctness of their identification. 4. SCELOPORUS YARROVII. Sceloporus jarrovil, Cope, in Wheeler's Bep. Explor. W . 100th - Mer. v. p. 569, pl. xxiii. fig. 2 (1875), and Proc. A m . Philos. Soc. xxii. 1885, p. 396. Sceloporus yarrovii, Bouleng. Cat. Liz. ii. p. 223 (1885); Giinth. Biol. C.-Am., Bept, p. 69 (1890). Sceloporus pleurolepls, Giinth. 1. c. p. 74, pl. xxxii. fig. B. Head-shields smooth or slightly rugose; frontal transversely divided, rarely broken up into scales, in contact with the interparietal or separated from it by a small agygous shield, rarely by the frontoparietals; interparietal as long as broad or longer than broad, much larger than the parietals, which may be divided; a |