Plate 3. 
Page 
Figure 1. Crenclla gnsea Dali. 80 
Attn Island, Alaska. 
2. Modiolaria prolracla Dali. 75 
Nunivak Island, Bering Sea. 
3. Tindaria calif arnica Dali. 38 
Off Santa Barbara Islands. 
4. Tindaria brunnca Dali. 38 
Bering Sea. 
5. Sancle pacifica Dali.180 
Not given. 
6. Macoma quadrana Dali.175 
Boca de Quadra, Alaska. 
7. Glycymcris corteziana Dali. 42 
Cortez Bank. 
8. Lcda amblia Dali . 21 
Monterey Bay. 
9. Corbula kclseyi Dali.204 
10. Thyasira cygnus Dali . 121 
Cygnet Inlet, Alaska. 
11. Panope generoM solida Dali.206 
Head of Gulf of California. 
Note— Photograph by U. S. N. M. from type specimens in U. S. N. M. 
