MABUYAAGILIS. 261 



SYN. Mabttya, FITZ. Neue Class. Kept. 1826, 23 & 52. 

 Mabouya, GRAY, Catal. Lizz. Brit. Mus. 1845, 93. 



OBSERV. The genus Mabuya, as understood here, is a purely Ame- 

 rican type, peculiar to the tropical and subtropical regions, for, we 

 have separated, under a peculiar appellation (Emoa), such species of 

 the islands of the Pacific as were included in it by other writers. As 

 to Mabuya elegans, a native of India, we leave it out of the question 

 until we shall have made a comparative study of its generic characters. 



MABUYA AGILIS, Fitz. 



SPEC. CHAR. Scales well developed, disposed upon thirty longitudinal 

 series. Supranasals nearly contiguous upon the middle line of the 

 rostrum. Postfrontals separated. Parietals smaller than the latero- 

 occipitals. Middle occipital well developed ; a pair of narrow 

 postoccipitals. Second supraocular very large. Temporal shields 

 small, scale-like. Upper labials eight ; seventh much larger than 

 the rest, and situated under the eye. Lower labials eight also, sub- 

 equal, narrow. Mental shields transversely elongated. Auricular 

 aperture moderate, slightly overlapped above by the adjoining 

 scales, otherwise simple. Back bronzed, black-dotted; on each side, 

 a broad black band, margined with white. 



SYN. Srincus agilis, RADDI, Mem. matem. e fisic. Soc. Ital. XIX, 18 . . , 62. 

 Mabuya agilis, FITZ. Neue Class. Kept. 1826, 52. 



Scincus bis(riatus,Spix, Spec.nov. Lacert. Bras. 1825,23. Tab. xxvi, fig. 1. Cuv. 

 Regn. Anim. 2d ed. II, 1829, 63. GRIFF. Anim. Kingd. IX, 1831, 158. 



Scincus nigropunctatus, SPIX, Spec. nov. Lacert. Brasil. 1825, 24. Tab. xxvi, fig. 2. 



Euprepis bistriatus, WAGL. Naturl. Syst. Amph. 1830, 162. 



Tilfqua nigropunctata, GRAY, Synops. Kept, in Griff. Anim. Kingd. IX, 1831, 69. 



Tiliqua albolabris, GRAY, Ann. Nat. Hist. II, 1839, 292. 



Tillqua spixii, Cocx. Tab. synopt. Scincoid. (Compt. rend. Acad. des Sc. IV, 1837.) 



Eumeces spixii', DUM. & BIER. Erpet. gen. V, 1839, 642. 



Mabouya ayilis, GRAY, Catal. Lizz. Brit. Mus. 1845, 94. 



OBSERV. We will not dwell upon the peculiar characters of this 

 species, since it is the only one of its genus now at our command : 

 hence, unable to speak of it comparatively. The Exploring Expe- 



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