DIPLODACTYLUS VITTATUS. 297 



roundish plates ; with two oval, convex, rather thick ones at the 

 extremity. Tail round or fusiform, with rings of small scales, simi- 

 lar above and below. No femoral or interfemoral pores. 



Syn. — Diplodactylusy GrRAY, Proc. of Comm. of Sc. and Gorres. of Zool. Soc. Lend. 

 II, 1832, 40 ; &, Catal. Lizz. Brit. Mus. 1845, 148.— Fitz. Syst Kept. 1843, 94.— 

 TsOH. Faun. Peruan. 1845, 37. 



Observ. — Allied to PhjUodactylus by the general structure and 

 conformation of its fingers and toes. This genus differs from the one 

 just alluded to by the absence of large tubercles, intermingled with 

 the dorsal granules, by its cylindrical tail, instead of being depressed, 

 also by the uniformity of its scales above and below. The absence of 

 mental shields is also a feature not to be overlooked when both of these 

 genera are compared together. 



DiPLODACTYLus VITTATUS, Gray. 



(Plate XXIV, figs. 9-16.) 



Spec. Char. — No mental shields. Three anterior lower labial plates 

 very large ; the rest very small. Symphyseal not inclosed by the 

 adjoining labials. An oblique series of three or four small tubercles 

 on each side of the base of the tail. Brown, with a pale dorsal 

 band ; sides of the body, limbs, and tail, yellow-spotted. Beneath 

 uniform dull white. 



Syn. — Diplodactylus vittatusj Gray, Proc. of Comm. of Sc. and Corresp. of Zool. 

 Soc. Lond. II, 1832, 40 ; &, Catal. Lizz. Brit. Mas. 1845, 148.— FiTZ. Syst. Kept. 

 1843, 94. 



PTiyllodactylus vittatus, DuM. & BiBR. Erpet. g6n. Ill, 1836, 400. 



Descr. — We have before us one specimen of this species, admirably 

 preserved, measuring about three inches and a half from the apex of 

 the snout to the tip of the tail : the head and neck together giving 

 nearly an inch, and the tail, an inch and a quarter. 



The head itself is broader than deep posteriorly ; the snout taper- 

 ing into an acute angle, rounded at the summit. The temples are 

 rounded, and the occipital region subconvex, whilst the interocular 

 space is depressed or subconcave, and the snout very declivous side- 



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