18 



255. Pitts, Richard M. , Frances J. Swataski and Jerrold S. 



Scharninghausen. 1990. Distributional records for 

 several snakes from Honduras. 42: 310-311. 

 Plsek, Robert W. , see Watkins, Julian F., II and Frederick 

 R. Gehlbach, 1972. 



256. Pyburn, William F. 1955. Species discrimination in two 



sympatric lizards, Sceloporus olivaceus and S. poinsetti. 

 7: 312-315. 



257. . 1958. Size and movements of a local population of 



cricket frogs (Acris crepitans) . 10: 325-342. 



258. . 1963. Observations on the life history of the 



treefrog Phyllomedusa callidryas (Cope). 15: 155-170. 



259. . 1963. Viability of F. hybrid treefrogs: Abs. 15: 



441. 



260. . 1992. A new tree frog of the genus Scinax from the 



Vaupes River of northwestern Brazil. 44: 405-411. 



261. Quinn, Hugh R. 1979. Sexual dimorphism in tail pattern of 



Oklahoma snakes. 31: 157-160. 



262. Ramirez, S. A. and R. E. Huff. 1967. A cytological study 



of parthenogenetically activated eggs of Rana pipiens. 

 19: 41-56, 



263. Raun, Gerald G. 1959, Terrestrial and aquatic vertebrates 



of a moist relict area in central Texas. 11: 158-171. 



264. . 1962, Observations on behavior of newborn hognosed 



snakes, Heterodon p. platyrhinos . 14: 3-6. 



265. . 1964. Effects on the Edwards Plateau on the 



distribution of Texas vertebrates: Abs. 16: 498. 



266. . 1966. The distribution of whipsnakes (Masticophis 



taeniatus) in Texas. 18: 226-227, 



267. and L. J. Eck. 1967. Vertebrate remains from four 



archeological sites in the Amistad Reservoir area, Val 

 Verde County, Texas. 19: 138-150. 



268. Reddell, James R, 1967, A checklist of the cave fauna of 



Texas. III. Vertebrates. 19: 184-226, 



269. . 1971. A checklist of the cave fauna of Texas. VI. 



Additional records of vertebrates. 22: 139-158. 



Reddell, James R. , see Mitchell, Robert W. , 1965. 

 Reiff, Patricia H., see Hayes-Odum, Louise A., Debra 



Valdez, Marjorie Lowe, Loretta Weiss and Dennis Jones, 



1993, 

 Riley, John, see McAllister, Chris T. , Paul S. Freed and 



Deborah A. Freed, 1992. 

 Rinne, W. F. , see Minckley, C. 0., 1972. 



270. Rose, Francis L, 1989. Aspects of the biology of the 



Concho watersnake (Nerodia harteri paucimaculata) . 41: 

 115-130. 



Sanders, Ottys, see Smith, Hobart M. , 1952. 



271. *Sarjeant, William A. S. 1971, Vertebrate tracks from the 



Permian of Castle Peak, Texas. 22: 343-366, 



272. * . 1976. Track of a small amphibian from the 



Pennsylvanium of Oklahoma. 27: 107-112. 



273. Savage, Jay M. 1954. A revision of the toads of the Bufo 



