Subject ASC0003sw6
The geological magazine, or, Monthly journal of geology.
Decade 2:v.8 (1881), Page 149 (1881)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32519404
Keywords
Glassia obovata spiral coil fossil ventral dorsal shell mollusk marine bivalve microscopic view Glassia Obovata