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1951. Distributional and evolutionary history of the kingfisher
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Whitehead, J.

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_Transmitted June 21, 1966_

31-4627

(Continued from inside of front cover)

Vol. 13. 1. Five natural hybrid combinations in minnows
(Cyprinidae). By Frank B. Cross and W. L. Minckley.
Pp. 1-18. June 1, 1960.

2. A distributional study of the amphibians of the Isthmus
of Tehuantepec, Mexico. By William E. Duellman. Pp.
19-72, pls. 1-8, 3 figures in text. August 16, 1960. 50
cents.

3. A new subspecies of the slider turtle (Pseudemys
scripta) from Coahuila, Mexico. By John M. Legler. Pp.
73-84, pls. 9-12, 3 figures in text. August 16, 1960.

*4. Autecology of the copperhead. By Henry S. Fitch. Pp.
85-288, pls. 13-20, 26 figures in text. November 30,
1960.

5. Occurrence of the garter snake, Thamnophis sirtalis, in
the Great Plains and Rocky Mountains. By Henry S. Fitch
and T. Paul Maslin. Pp. 289-308, 4 figures in text.
February 10, 1961.

6. Fishes of the Wakarusa River in Kansas. By James E.
Deacon and Artie L. Metcalf. Pp. 309-322, 1 figure in
text. February 10, 1961.

7. Geographic variation in the North American cyprinid
fish, Hybopsis gracilis. By Leonard J. Olund and Frank
B. Cross. Pp. 323-348, pls. 21-24, 2 figures in text.
February 10, 1961.

8. Descriptions of two species of frogs, genus Ptychohyla;
studies of American hylid frogs, V. By William E.
Duellman. Pp. 349-357, pl. 25, 2 figures in text. April
27, 1961.

9. Fish populations, following a drought, in the Neosho
and Marais des Cygnes rivers of Kansas. By James
Everett Deacon. Pp. 359-427, pls. 26-30, 3 figures.
August 11, 1961