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Show 534 MR. G. A. BOULENGER ON REPTILES AND [June 18, to the vent, tail 15 (imperfect). One of the types, a male, collected by M . Revoil, is now in the British Museum. This very curious Lizard was originally described as a Uromastix allied to U. princeps, O'Sh., which is the type of m y genus Aporoscelis. In all respects, except the shape of the tail, it is, however, a true Agama and is well distinguished by its dentition from Uromastix and Aporoscelis, as was first pointed out to m e by my friend Dr. Anderson. I cannot consider the shape of the tail, in this instance, as warranting generic separation, and following the precedent laid down in dealing with the Iguanoid genera Ctenosaura and Cachrys (Proc. Zool. Soc. 1886, p. 241), and the Scincoid Egernia (Cat. Liz. iii. p. 134), I have no hesitation in placing Uromastix batilliferus in the genus Agama. But it may be regarded as the type of a distinct section or subgenus, for which I propose the name Xen-agama, characterized by the extreme flattening and abbreviation of the tail. 14. VARANUS OCELLATUS, Riipp. Goulf, 29.11.94. 15. LATASTIA LONGICAUDATA, Reuss. Goulf, 29.11.94. Two specimens, male and female. 60 or 61 scales across the middle of the body. The male has 7 femoral pores on each side, the female 6. 16. EREMIAS SEXTJENIATA, Stejneger. The exclusion of the subocular from the lip and the absence of a light vertebral streak distinguish this Lizard from E. spekii, Gthr. 17. EREMIAS MUCRONATA, Blanf. 18. EREMIAS SMITHI, sp. n. (Plate XXIX. fig. 4.) Head much depressed; snout pointed, shorter than in E. bren-neri and mucronata. Upper head-shields rugose ; nasals feebly swollen, lower divided, the nostril pierced between four shields; frontonasal as long as broad, separated from the rostral; two praefrontals ; frontal strongly grooved; three large supraoculars, second and third forming together an oval disc surrounded with granules; a small interparietal in contact with a small occipital; an elongate shield on the outer border of the parietals ; temporal scales granular, smooth ; no auricular denticulation; lower eyelid scaly; subocular not reaching the lip, resting on the sixth and seventh labials ; the two first labials in contact with the nasals ; the two anterior pairs of chin-shields in contact. Collar curved, perfectly free, with 7 plates. Scales finely granular, juxtaposed, smooth, slightly larger on the sides, 75 across the middle of the body. 8 straight longitudinal series of ventral plates, with an |
