r>4(» 



REPOET OF NATIONAL MUSEUM, 1902. 



ANOLIS MONENSIS," new species. 



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

 diminishing from the median line, becoming granular before reaching 

 the sides; tail strongly compressed, in the adult male with a very high 

 tin-like crest supported by rays, much less than twice the length of 

 head and body; ventrals imbricate, smooth; occipital large, larger 

 than ear opening, separated from the supraorbital semicircle by one 

 row (exceptionally, two rows) of flat scales; semicirculars broadly in 

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

 ing; two shields between supraocular semicircle and superciliaries 

 bordering the supraocular granules anteriorly; anterior femoral scales 

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



101 \ 100 



Figs. 98-101.— Anolis monensis. 1\ 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. 



Type.— No. 29387. U.S.N.M. Mona Island, Porto Rico; collector, 

 B. S. Bowdish. 



Habitat. — Mona Island. 



Anolis monensis is closely related to A. cristatell/us^ and is possibly 

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

 hence the fewer rows on the loreal triangle, the single row between 

 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 A. gundlachi, 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 not be 

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

 is different from that of A. cristatellus. 



" From Mona Island. 



