646 



REPOKT OF NATIONAL MUSEUM, 1902. 



ANOLIS MONENSIS," new species. 



Dhiffvokh. — Dorsal .scales small, juxtaposed, convex, gradually 

 diminishing' from the median line, becoming granular before reaching 

 the sides; tail strongl}' compressed, in the adidt male with a very high 

 tin-like crest supported 1»y rays, much less than twice the length of 

 head and body; ventrals iml)ricate, smooth; occipital large, larger 

 than ear opening, separated from the supraorljital semicircle by one 

 row (exceptionalh", two rows) of tlat scales; semicirculars broadl}- in 

 contact; tibia much shorter than head from tip of snout to ear-open- 

 ing; two shields between supraocular semicircle and superciliaries 

 l)ordering the supraocular granules anteriorly; anterior femoral scales 

 keeled; color very pale gray, with a dusky, transocular line. 



101 \ 100 



Figs. 9,S-101.— Anolis moneksis. 2^ x natural size. 98, top of head; 99, side of head; 100, underside 

 of head; 101, side of tail at level of fifth spine. No. 29387, U.S.N .M. 



Tijpe.—^o. 29387. U.S.N.M. Mona Island, Porto Kico; collector, 

 B. S. Bowdish, 



Ilahttat. — Mona Island. 



A)i<)lls iiionenxis is closely related to ^i. ertstnteUits^ and is possibly 

 directly descended from the latter. The scales are larger throughout, 

 hence the fewer rows on the loreal triangle, the single row betwe(^n 

 occipital and supraorbital semicircle, the greater size of the dorsal 

 scales or tubercles, etc. The caudal tin is excessively high, more so 

 than in any A. cristatellus^ or even ^4. gimdlacJi!^ examined by me. 

 The coloration is also peculiar, being of a very pale gray, with a dis- 

 tinct transocular, dusky line. In many specimens there is a distinct 

 white line from shoulder to groin. The color of the dewlap can notlu^ 

 made out in the alcoholic specimens, but there are indications that it 

 is ditferent from that of A. oriMatellus. 



<i From ]\Iona Isliiinl. 



