. 75 cents.

10. Recent soft-shelled turtles, of North America (family
Trionychidae). By Robert G. Webb. Pp. 429-611, pls.
31-54, 24 figures in text. February 16, 1962. $2.00.

Index. Pp. 613-624.

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 figure 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
figures 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. 99-111, 1 figure 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. 113-120, 1 figure in
text. December 29, 1961.

8. A new subspecies of ground squirrel (Spermophilus
spilosoma) from Tamaulipas, Mexico. By Ticul Alvarez.
Pp. 121-124. March 7, 1962.

9. Taxonomic status of the free-tailed bat, Tadarida
yucatanica Miller. By J. Knox Jones, Jr., and Ticul
Alvarez. Pp. 125-133, 1 figure in text. March 7, 1962.

10. A new doglike carnivore, genus Cynaretus, from the
Clarendonian Pliocene, of Texas. By E. Raymond Hall and
Walter W. Dalquest. Pp. 135-138, 2 figures in text.
April 30, 1962.

11. A new