HERPET0EOGY OF PORTO RICO. 



(H>9 



hide the skin underneath, even when highly distended, the color of 

 which, however, appears to be whitish; iris blackish brown. 



Three younger specimens collected at the same place and time differ 

 in coloration in that they have a well-defined, nearly white median 

 dorsal line, one whole and two half scales to three whole scales wide, 

 bordered on each side by a wide blackish-brown band, which is a con- 

 tinuation of the transocular blackish patch seen in the adult; below 

 this another, but very narrow, whitish line on the boundary between 

 back and sides in continuation of the subocular white band. 



Habitat. — Thus far this new species is only known from the type 

 locality, :'> miles east of the city of Ponce. It was on the very last 

 day of our collecting in Porto Rico that we almost stumbled upon this 

 very distinct uoveltv. On the morning of that day Dr. Richmond 

 went out alone collecting, as I myself was invalided so as to be able to 

 walk any distance only with difficulty, and at noon he returned with a 

 single lizard. This 1 at once recognized as an unknown species, and 

 as Dr. Richmond fortunately remembered the exact spot where he 

 collected it we took at once a carriage and drove out to the place, 

 which is on the south side of the military road. On the side of a little 

 hill, rising less than a hundred feet up from the coastal plain, and 

 consisting of disintegrating coral limestone, we found a few additional 

 specimens, mostly younger ones, among the scant grass and weeds. 

 They were exceedingly agile, like Anolis pulchellus, which was found 

 in the same locality, but were not common. 



It> marks. — Though closely allied to Anolis krugi and A. pulchelkcs, 

 the present species is very distinct, and much more so than these are 

 from each other; in fact, its uniform covering of large, strongly im- 

 bricated keeled scales, with hardly any granules anywhere, is almost 

 unique. The perfectly covered white dewlap and the coloration are 

 also very characteristic. 



List of specimens of Anolis poncensis. 



