NATURAL SCIENCES OF PHILADELPHIA. 205 



Tantilla melanocephala, Linn. Variety. 



StenorMna ventralis, D. B. 



Stenorhina degenhardtii, Berth. 



Ninia maculata, Peters. Abundant. 



Ninia atrata, Hallow. 



Colobognathus hoffmannii, Peters. Abundant. 



Colobognatlius brachycephalus, Cope, sp. nov. 



Colobognathus dolichocephalus, Cope, sp. nov. 



Epicrates cenchria, L. 



LACERTILIA. 



Anolis insignis, Cope, sp. nov. 



Anolis microtus, Cope, sp. nov. 



Anolis nannodes, Cope, P. A. N. S., 1864, p. 173, var. with only five scales between 

 the canthal rows on muzzle, and six rows of large smooth geneials. 



Anolis hoffmannii, Peters, Monatsber. Pr. Acad., 186.3, 142. 



Anolis trochilus, Cope, sp. nov. 



Sceloporus malachiticus, Cope, Proc. Acad. Nat. Sci., Phila., 1864, 178. 



Cyclura acanthura, Wiegmann. 



Phyllodactylus. 



BATRACHIA. 



Trypheropsis chrysoprasinus, Cope, Proc. Acad. Nat. Sci., Phila., 1866, 1.30; 1868, 

 117. 



Atelopus varius. Very abundant. The light spots on this species are crimson in 

 life. 



Bufo. 



Smilisca daudinii, D. B. 



Agalychnis moreletii, Dum. Very abundant. Golden and green in life. 

 Descriptions of new species are appended." 



TELEURASPIDES. 



This group of the rattlesnake famil}^ embraces those with undi- 

 vided anal shields and no rattle. It stands immediately between 

 the true Trigonocephali and the Grotali^ as the former have di- 

 vided caudal scutella and the rattle absent, the latter the rattle 

 with simple scutella. One genus of this division was described 

 long ago by Beauvois, and adopted by Gray and others, that is, 

 the Ancistroclon of North America and Mexico, but most of the 

 genera have only been recognized within a recent period. In 

 March, 1859, Prof. Peters distinguished a second genus of the 



1871.] 



