1954. Snakes and lizards from Quintana Roo , Mexico. Lloydla 16(3): 227-232, 

 Sept. 1953. 



195A. [Supplemental list of titles of papers concerning the herpetology of 

 Ecuador.] Pages 1067-1076 in Carlos Larrea, Bibliografia Cientifica 

 del Ecuador, Vol. 5. Casa de la Cultura Ecuatoriana, Quito, Ecuador. 



1954. The amphibians and reptiles of the coast and coastal sierra of 



Michoacan, Mexico. Dec. Pap. Mus. Zool., Univ. Michigan (554): 1-37, 

 23 Jun. 1954. 



1954. Symposium: Subspecies and clines; Introduction. Syst . Zool. 3(3): 97, 

 Sept. 1954. 



1954. Laboratory instructions for Biology IC 1 and 2, 1st. Ed. Brown 

 University, mimeo., 36 pp. 



1955. Use and misuse of the biotic province concept. Amer. Nat. 89(844): 

 21-28, Jan. -Feb. 1955. 



1955. Notes on the frog genus Diaglena Cope. Nat. Hist. Misc. (143): 1-8, 

 28 Mar. 1955. 



1955. Herpetologlcal type localities in Ecuador. Rev. Ecuator. Entom. 

 Parasit. 2(3-4): 335-352, 1954-1955. 



1955. Collected Papers on the Gene Theory. [Prepared and with an introduction 

 by James A. Peters.] Brown University, ii + 194 pp. 



1955. Laboratory instructions for Biology IC 1 and 2, 2nd. Ed. Brown 

 University, mimeo., 37 pp. 



1956. The occurrence of the snake genus Hypsiglena in Ecuador. Copeia, 

 1956(1): 57-58, 29 Feb. 1956. 



1956. Preliminary field survey of the ecology, zoogeography, and systematics 



of the reptiles and amphibians of Ecuador. Amer. Philos. Soc. Yearbook, 

 1955: 140-142, Published 1956. 



1956. An analysis of variation in a South American snake, Catesby's Snail- 

 Sucker ( Dipsas catesbyi Sentzen) . Amer. Mus. Novitates (1783): 1-41, 

 27 Jul. 1956. 



1956. A third leaf-nosed species of the lizard genus Anolis from South 



America. Breviora (62): 1-8, 3 Oct. 1956. Gustavo Orces-V. , junior 

 author. 



1956. Comments on the application by Denys W. Tucker concerning "Gempylus 



serpens" Cuvier, 1829 (class Pisces). Bull. Zool. Nomen. 12(11): 315. 



1956. Laboratory instructions for Biology IC 1 and 2, 3rd. Ed. Brown 

 University, mimeo., 42 pp. 



