192 ANNALS NEW YORK ACADEMY OF SCIENCES 



Iii spite of the separation of the nasal shield from the rostral, I have 

 retailed the name stejnegeri, as it may well be the case that the young of 

 the three related species, cornuta, nigerrima, and stejnegeri, are well dis- 

 tinguishable, while in the adults the characters are obscured. In other 

 respects it accords well with the previously described specimens from 

 Mona. Additional material of cornuta, however, is required to establish 

 satisfactorily the status of the forms on Mona and Navassa. 



Celestus Gray 

 Celestus pleii (Dumeril and Bibron) 



Seven specimens were collected at Aibonito. This species is confined 

 to Porto Eico, where it is apparently rare and of local distribution. 



The present series is so uniform in scale characters as to suggest that 

 they are directly related. The proportion of the length of the forelimb 

 to that of the body varies between 12 :100 and 15 :100. The scales about 

 the body are 34 in one, 35 in one, 36 in four, and 38 in one. 



The two female specimens contain respectively one and three well ad- 

 vanced embryos. The egg measures 18 x 11 mm. The completely 

 formed embryo rests on a very large yolk mass. The head and legs of 

 the embryo are proportionately larger than in the adult, while the tail 

 is shorter. 



Ameiva Meyer 



Ameiva exsul Cope 



The following localities are represented by fifty-two specimens in the 

 collection : Coamo Springs, Ensenada, Palo, Seco Point, San Truce, and 

 Culebra Island. This species reaches a large size, apparently much ex- 

 ceeding half a meter, but the larger specimens are exceptionally wary and 

 I was unable to secure them. The largest seen was on Culebra Island. 

 In nearly all the specimens examined an additional row of ventral plates 

 on each side is enlarged to a varying degree, in some cases to such an 

 extent that there are distinctly twelve longitudinal rows of ventrals. 



The common report in Porto Eico that the "iguana" eats the shoots of 

 young corn appears to be supported to a degree by an examination of 

 stomach contents. Of twenty stomachs examined, one was empty ; eleven 

 contained vegetable matter, chiefly large numbers of red-coated seeds; 

 five, unidentifiable insect remains ; two, crickets ; three, small crabs ; three, 

 eggs of a lizard; one, tail of a large Anolis cristatellus ; and six, parasitic 

 worms. 



