NATURAL SCIENCES Or PHILADELPHIA. 209 



Bothriopsis castelnavii, Dum. Bibr. Erp. Gen. vii. {Botkrojis). Castelnau, Anitn. 

 Nouv. ou rares Am. Sud. Kept. Tab. Steindacbner, Sitzungsb. Wien. Acad., 1870, 

 May. Bothriopsis quadriscutatns, Peters, Monatsb. 1851, 359. 



Equador; Peru. 



Bothriopsis affinis, Bocourt. Ann. Sci. Nat., 1860, 201. Teleiirasjjis mexicanus. 

 Cope, Proc. A. N. S., 1859, 339. Bothriechis, do., Cope, 1. c. 1860, 345, nee Atrojius 

 fnexicanus, D. B. 



Mexico, as far north as Tuxpan, and Central America to Costa 

 Rica. 



Bothriopsis mexicanus, Dum. Bibr. (Atropics). Erp. Gen. viii., p. 1521, Tab. 83 

 bis.? Atiopns nummifer, Riippel, Verzeicbn. Senck. Mus. Frankr. p. 21. Tcleu- 

 rospis, do., Giinther. Am. Magaz. Nat. Hist., 1867, March, Tab. iii., fig. C, nee 

 Copei, Pr. A. N. S. Phila., 1859, 339, et 1860, 345 = B. affinis, Boc. 



Riippel's description is so brief and worthless as to be unfit for 

 application to any species. I used it for what turns out to be the 

 B. affinis of Bocourt, but Dr. Giinther retains it for this onej 

 believing it to be identical with the former. Bocourt first distin- 

 guished them, but they may prove to be the same ; they are at 

 least veiy closelj^ allied. 



Common in Mexico. 



Numerous specimens of these species are in the collections of 

 the Smithsonian Institution, chiefly obtained by Henry Hague, 

 of Coban. 



ANCISTRODON, Beauvais. 



Traus. Amer. Philos. Soc. AgJcistroclon and ToxicopMs (Troost). Baird 

 and Gh-ard. 



Ancistrodon bilineatus, Giinther. Am. Magaz. Nat. Hist., Nov. 1863. 



Guatemala ; Tehuantepec. Coll. Smithsonian. 



Ancistrodon pugnax, Bd. Girard. CataL Serpents N. Amer., 18. 

 Texas. 



Ancistrodon piscivorus, Catesb. 



United States, from Texas to Virginia; the^ Mississippi Valley 

 to south Illinois (Kenuicott). 



Ancistrodon contortrix, Linn. 



North America. East of Rocky Mountains, from Texas inclu- 

 sive of Massachusetts. 



Elaps multifasciatus, Jan. Mag. Zool. 1859, pi. A. 



An elongate species, with extremely short tail, and head rather 

 1871.J 



