ADAPTATIONS AND DISTRIBUTION 



Blair, \V. F., and T. H. Hu1)1k1I, 1''-)<S. •Ihc buitic distncls of Oklahoma. Amcr. Mull. Nat. 



20: 425-454. 

 Bragg, Arthur N., 1936. The ecological tlistrihiitioii of some North .\mcrican .\nura. Amcr. 



Nat. 70: 459-466. 

 . 1936a. Notes on the breeding habits, egg and embryos of Biijo eognatiis with a 



description of the tadpole. Copcia. 1936 (1): 14-20. 

 . 1937. Observations on Btifo cogiuttiis with special reference to breeding habits 



and eggs. Amer. Midi. Nat. 18: 275-284. 

 . 1937a. A note on the metamorphosis of the tadpoles of Biijo cognattis. Copeia. 



1937 (4): 227-228. 

 . 1939. Possible hybridization of Biijo coginitiis and Biijo tvoodhouui ivoodhoimi. 



Copeia. 1939 (3): 173. 

 ■ •. 1939a. Observations on the natural history of Biijo coguatits Say. (abst.) Proc. 



Okla. Acad. Sci. 19: 41-42. 

 . 1940. Observations on the ecology and natural history of .\nura. I. Habits, habi- 

 tat, and breeding of Bufo cognattis Say. Amer. Nat. 74: 322-349 and 424-438. 

 . 1940a. Observations, II. Habits, habitat, and breeding of Btijo tvoodhotis't't ivood- 



hotisii Girard in Oklahoma. Amcr. Midi. Nat. 24: 306-321. 

 . 1940b. Observations, III. The ecological distribution of Anura in Cleveland County, 



Oklahoma, with notes on the habits of several species. Amer. Midi. Nat. 24: 322-335. 

 . 1940c. Observations, V. The process of hatching in several species. Proc. Okla. 



Acad. Sci. 20: 71-74. 

 . 1940d. Observations, VI. The ecological importance of the study of habits of 



animals as illustrated by toads. The Wasmann Col., 4: 6-16. 

 . I940e. Dwarf American toads from Cleveland County, Oklahoma. Proc. Okla. 



Acad. Sci. 20: 75-76. 

 . 1941. Some observations on Amphibia at and near Las Vegas, New Mexico. Great 



Basin Nat. 2: 109-117. 



. 1941a. New records of frogs and toads for Oklahoma. Copeia 1941 (1): 51-52. 



. 1941b. Tadpoles of Scaphioptis homhijroiii and S. hamiuoiidii. The Wasmann 



Col. 4: 92-94. 



. 1941c. Key to toads (Bufo) of Oklahoma. Proc. Okla. Acad. Sci. 21: 17-18. 



. 194 Id. Observations on the ecology and natural history of Anura VIII. Some fac- 

 tors in the initiation of breeding behavior. Turtox News 19: 10-12. 

 — •. 1942. Observations, etc. X. The breeding habtis of Psetidaais streclicri Wright and 



Wright in Oklahoma, including a description of the egg and tadpoles. The Wasmann 



Col. 5: 47-62. 

 . 1942a. Observations, etc. XI. The invasion of the Canadian river flood plain by 



two prairie species. Proc. Okla. Acad. Sci. 22: 73-/4. 

 . 1942b. Further field notes on the initiation of breeding behavior. Turtox News 



20: 12-13. 

 . 1942c. Corrected list of Amphibia known in central Oklahoma. Proc. Okla. Acad. 



Sci. 22: 16-17. 

 . 1942d. Key to adults of frogs of the genus Rana in Oklahoma. Proc. Okla. Acad. 



Sci. 22: 18. 



. 1942e. On toad and frog abundance after heavy rainfall. Science 95: 194-195. 



. 1942f. Key to spadefoot toads (Scaphiopus) in Oklahoma. Turtox News 20: 154. 



. 1942g. The habits of spadefoot toads in relation to their phylogeny. (Abst.) Anat. 



Rec. 84 (SuppL): 57. 

 . 1942h. Life history of Hurter's spadefoot (Abst.) .A.nat. Rec. 84 (SuppL): 56. 



^^ Papers by the author and his associates touching on the general subject discussed 

 plus those of others to which specific reference is made in the text are given. See bibliog- 

 raphies in the papers cited for further information. 



91 



