Boie, Friedrich. 1828. Bemerkungen uber die Abtheilungen im 



Naturlichen Systems und deren Characteristik. Isis v. Oken 



21(3/4): 351-363. 

 Bokerman, Werner C. A. 1957. Actualizacao do Itinerario da 



Viagem do Principe de Wied ao Brasil (1815-1817). Arguivos 



Zool. Sao Paulo 10: 209-251. 

 Boulenger, George Albert. 1896. Catalogue of the Snakes in the 



British Museum (Natural History), Vol. 3. Taylor and 



Francis; London. 

 Boulenger, George Albert. 1898. An account of the reptiles, 



batrachians, and fishes collected by Mr. W. G. H. 



Rossenberg in Western Ecuador. Proc. Zool. Soc. London 



1898: 107-126. 

 Boulenger, George Albert. 1914. On a second collection of 



batrachians and reptiles made by Dr. H. G. F. Spurrell, 



F.Z.S., in the Choco, Colombia. Proc. Zool. Soc. London 



1914: 813-817. 

 Bowler, J. Kevin. 1977. Longevity of reptiles and amphibians in 



North American collections. Soc. Study Amph. Rept. 



Herpetol. Circ. 6. 1-32. 

 Brattstrom, Bayard H. and Richard C. Schwenkmeyer . 1951. Notes 



on the natural history of the worm snake, Leptotyphlops 



humilis . Herpetologica 7(4): 193-196. 

 Breen, John F. 1974. Encyclopedia of Reptiles and Amphibians. 



T.F.H. Publ., Inc.; Neptune City, N.J. 

 Brehm, Alfred. 1883. Brehms Thierleben. Allgemeine Kunde des 



Thierreichs. Zweite umgearbeitete und vermehrte Auflage. 



Kolorierte Ausgabe. Dritte Abtheilung. Erster Band. Die 



Kriechthiere und Lurche. Bibliographischen Inst.; Leipzig. 

 Briceno-Rossi, A.L. 1934. El problema del ofidismo en 



Venezuela. Bol. Minist. Salubr. Agric. Cria (Caracas) 



2(14): 1079-1177; (15): 15-103. 

 Brongersma, L. D. 1938. On the presence or absence of 



hypapophyses under the posterior precaudal vertebrae in 



some snakes. Zoologische Mededeeling. 20: 240-242. 

 Brongersma, L. D. 1940. Snakes from the leeward group, 



Venezuela and Eastern Colombia. Pp. 115-137. In: P. W. 



Hummelinck. Studies on the fauna of Curacao, Aruba, 



Bonaire and the Venezuelan Islands. M. Nijhoff; The Hague. 



2 vols. 

 Buffa, Pietro. 1905. Ricerche sulla muscolatura cutanea dei 



serpenti e considerazioni sulla locomozione di guesti 



animali. Atti Accad. Sci. Veneto-Trent . -Istr . , Cl. Sci. 



Nat., (N.S.) 1(2): 145-228. 

 Burghardt, Gordon M. 1977. The ontogeny, evolution, and 



stimulus control of feeding in humans and reptiles. Pp. 



253-274. In: Morely Kare and Owen Mailer, Eds. The 



Chemical Senses and Nutrition. Academic Press; New York. 

 Burton, Maurice and Robert Burton. 1975. Encyclopedia of 



Reptiles, Amphibians & Other Cold-blooded Animals. Octopus 



Books Lmtd. ; London. 

 Busack, Stephen D. 1966. Notes on a herpetological collection 



from the Azuero Peninsula, Panama. Copeia 1966(2): 371. 



