Variability and significance of parietal and ventral scales in the marine snakes of the genus Lapemis (Serpentes, Hydrophiidae), with comments on the occurance of spiny scales in the genus / Paul Gritis, Harold K. Voris.

n.s. no.56(1990)

Descriptions of apparently new species of mammals of the genera Heteromys and Ursus from Washington and Mexico, by D. G. Elliot.

v.3:no.13(1903)