632 REPORT OF NATIONAL MUSEUM, 1902. 



The adult female differs chiefly in having no fin to the tail, a smaller 

 dewlap with the scales set more closely and uniformly, and in lacking 

 the enlarged postanal plates. The upper edge of the tail is even, the 

 ridge on the posterior two-thirds consisting of a series of rather flat 

 more or less regularly hexagonal scales of nearlj r equal size sur- 

 mounted by a keel, but slightly higher than those on the lateral scales. 



It is a curious fact that the young of this species is unknown. 

 Moreover, nobody seems to have described the young of the corre- 

 sponding species, equalty large and peculiar Anolis, which inhabits 

 the islands of Haiti, Cuba, and Jamaica. As we know the adults of 

 the other species, it is not possible that any of these can be the 3 T oung 

 of these giants, nor do any of them present structural characters which 

 would strengthen a suspicion in this direction. The large species 

 do not seem to be common on any of the islands, but that fact hardly 

 explains why no young ones or even half-grown specimens have thus 

 far been observed. 



Colors of living animal. — Adult male; U.S.N.M. No. 26843; L. 

 Stejneger, No. 9021; Catalina plantation, about 890 feet altitude; Feb- 

 ruary 21, 1900. Iris hazel, with a bright brass}^ ring bordering the 

 pupil; general color above greenish gray; back clouded with brown- 

 ish and sides with blackish dots, the dusky of the back and the black 

 spots on the sides arranged in four perceptible, though indistinct, 

 cross-bands; eyelids blackish, with a citron-yellowish spot above and 

 behind the eye and a smaller one in front; under the eye a long semi- 

 lunar white spot barely invading the posterior supralabials ; several 

 whitish spots on temples and sides of neck; underside white with dark- 

 gray mottlings and spots; dewlap delicately Naples-yellow, scales on 

 the edge white; legs indistinctly crossbarred with dusky bands more 

 or less spotted with blackish. Tongue pale cadmium orange, whole 

 interior of mouth of same color, but duller. 



During my absence three specimens, all males, were brought alive 

 to Dr. Richmond while in Luquillo, two of which (Nos. 26999 and 

 27000) were colored like the above, while the third (No. 27001) was 

 uniform emerald green when alive. In alcohol it is colored like the 

 others. 



Habitat. — This giant Anolis seems to be confined to Porto Rico, 

 Vieques, and Tortola, but is absent on St. Thomas and probably also on 

 St. John. In Haiti it is replaced by a nearly allied species, A. ricordii. 



In Porto Rico it occurs at least as high up as 900 feet above the sea. 

 It is rather rare, since none of the Fish Commission parties obtained 

 it. This scarcity can hardly be attributed to the mongoose, as it seems 

 "to live in tall trees rather than on the ground. As already stated, 

 young and half -grown specimens are as yet unknown. Besides the 

 specimens from the localities mentioned in the list below I have exam- 

 ined two specimens in the Hamburg museum, collected by Mr. J. 

 Michaelis at Arecibo in 1900. 



