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 in text.

August 11, 1961.

10. North American recent soft-sh.e.l.led turtles (family Trionychidae). By Robert G. Webb. Pp. 429-611, pls.

31-54, 24 figures in text. February 16, 1962.

Vol. 14. 1. Neotropical bats from western Mexico. By Sydney Anderson.

Pp. 1-8. October 24, 1960.

2. Geographic variation in the harvest mouse, Reithrodontomys megalotis, on the central great plains and in adjacent regions. By J. Knox Jones, Jr., and B.

Mursaloglu. Pp. 9-27, 1 figure in text. July 24, 1961.

3. Mammals of Mesa Verde national park, Colorado. By Sydney Anderson. Pp. 29-67, pls. 1 and 2, 3 figures in text.

July 24, 1961.

4. A new subspecies of the black myotis (bat) from eastern Mexico. By E. Raymond Hall and Ticul Alvarez. Pp.

69-72, 1 fig. in text. December 29, 1961.

5. North American yellow bats, "Dasypterus," and a list of the named kinds of the genus Lasiurus Gray. By E.

Raymond Hall and J. Knox Jones, Jr. Pp. 73-98, 4 figs.

in text. December 29, 1961.

6. Natural history of the brush mouse (Peromyscus boylii) in Kansas with description of a new subspecies. By Charles A. Long. Pp. 99-110, 1 fig. in text. December 29, 1961.

7. Taxonomic status of some mice of the Peromyscus boylii group in eastern Mexico, with description of a new subspecies. By Ticul Alvarez. Pp. 111-120, 1 fig. in text. December 29, 1961.

More numbers will appear in volume 14.

Vol. 15. 1. The amphibians and reptiles of Michoacan, Mexico.

By William E. Duellman. Pp. 1-148, pls. 1-6, 11 figures in text. December 20, 1961.

2. Some reptiles and amphibians from Korea. By Robert G.

Webb, J. Knox Jones, Jr., and George W. Byers. Pp.

149-173. January 31, 1962.

More numbers will appear in volume 15.