2 University of Michigan 



ger- subsequently listed a male specimen from Venezuela, but 

 in his description does not mention the alleged sexual differ- 

 ences in the original material. 



To make certain of the correctness of Cope's description 

 the writer requested Mr. Henry W. Fowler, of the Academy 

 of Natural Sciences of Philadelphia, to re-examine the type 

 material, which is in that institution, and he has kindly done 

 this and submitted the following account: "The type of 

 Ameiva bifrontata shows but a single series of granules separ- 

 ating the first and second supraoculars. Three other examples 

 from St. Thomas agree. Two without data, and labeled 

 females, are without granules, the first and second supraoculars 

 being in contact." It seems evident that the Ameiva bifrontata 

 of Cope and Boulenger are the same, and that the males at 

 least have the first and second supraoculars separated by gran- 

 ular scales, but it has not been shown that the females described 

 by Cope unquestionably belong to that species. 



In 1879, Fischer'- described, under the name Cnciiiidoplwrns 

 diz'isus^ a new species of teeid lizard with a divided frontal 

 from Raranquilla, Coloiiibia, and in this description remarks on 

 the similarity between this form and the females described by 

 Cope and suggests that the latter are to be referred to his 

 CnemidopJwriis diiisiis. This name has been doubtfully re- 

 ferred to the synonomy of A. bifrontata by Boulenger. 



The writer has examined 29 specimens"' of an Ameiva from 

 the region of the Santa }»Iarta Mountains, Colombia (Santa 

 Marta to Minca, San Lorenzo; Salamanca Coast; Fundacion) 

 that has the divided frontal of A. bifrontata. In these speci- 

 mens the arrangement of the supraocular scales and granules 



- Catalopue of I,izards in the British Museum, II, pp. 351-352. 

 •'' V'erh. Naturw. V'er. Hamb. (2) iii, 1879, pp. 99-102, pi. V. 

 * Obtained by the Hryant Walker Expedit on of the University of jMichi~an 

 (1013), and now in the ]\Iuseum of Zoology. 



