200 PROCEEDINGS OF THE ACADEMY OF 



NINTH CONTRIBUTION TO THE HERPETOLOGY OF TROPICAL AMERICA. 



BY E. D. COPE. 



The materials examined, from wliich the present contribution 

 is derived, are contained in six collections, viz: One made by 

 the U. S. Expedition for the exploration and survey of a canal 

 route across the Isthmus of Dai'ien, under Commander Selfridge ; 

 a second by the U. S. Exploring Expedition to survey a canal 

 route across the Isthmus of Tehuantepec, under Captain Shufeldt, 

 made by Dr. T. Hale Streets, who accompanied it as naturalist — 

 which collections were placed in my hands for determination by 

 Prof. Henry, of the Smithsonian Institution ; a third by John 

 Hauxwell, our correspondent at Pebas, Eastern Equador ; and a 

 fourth made in the southeastern part of the Island of Hayti, in 

 the republic of Santo Domingo, by our member, Wm. M. Gabb. 



I. The first of these collections embraces the following species: — 



LACERTILIA. 



Goniodactylus, sp. aff., albigulari. 



Corythophanes, sp. 



Anolis squamulatus, Peters, Monatsb. Pr. Ac. 1863, 145. 



Auricular opening nearly as large as eye-slit; scales smallest; 

 seven rows between orbits, twelve at middle of muzzle, and eleven 

 at middle of lores, the inferior not larger than the rest. No larger 

 supra-orbital and infra-labial scales ; scales of arm, back and tail, 

 one-keeled. 



Green, with seven crossbands, each of a double rOw of blackish 

 spots from axilla to tail, the front very oblique. One anterior 

 similar, extending from the ear to the shoulder. 



This description is introduced for comparison with those of 

 Aiiolis microtus and A. insignis, described a few pages later. 



OPHIDIA, Kuhl. 



Camilla Monotropis. 



Ninia atrata, Hallow., var. with yellow inferior surfaces with median brown band- 



Ophibolus micropholis, Cope. 



Pliocercus euryzonus, Cope. 



Dromicus Ignitus, Cope, sp. nov. 



Herpetodryas carinatus, L., var. 



Thrasops occidentalis, Gthr. 



[October 24, 



