Plate 54. 
IGURE 
1. Cyathodonta pedroana Dali. 
2. Cyathodonta pedroana Dali. 
3. Cyathodonta pedroana Dali. 
San Diego. 
4. Leiomya scahra Carpenter. 
Puget Sound. 
5. Serridens oblonga Carpenter. 
6 . Serridens oblonga Carpenter. 
7. Serridens oblonga Carpenter. 
8 . Serridens oblonga Carpenter. 
Puget Sound. 
9. Cuspidaria striata Jeffreys. 
10. Cuspidaria striata Jeffreys. 
San Pedro. Figured only. 
11. Rochefortia tumida Carpenter... 
12. Rochefortia tumida Carpenter- 
13. Rochefortia tumida Carpenter... 
14. Rochefortia tumida Carpenter... 
15. Verticordia ornata Orbigny. 
16. Verticordia ornata Orbigny. 
17. Verticordia ornata Orbigny. 
18. Verticordia ornata Orbigny. 
San Pedro. k 
19. Milneria kelseyi Dali. 
20. Milneria kelseyi Dali. 
21. Milneria kelseyi Dali. 
22. Milneria kelseyi Dali. 
23. Milneria kelseyi Dali. 
San Pedro. 
24. Poromya tenuiconcha Dali. 
25. Poromya tenuiconcha Dali. 
26. Poromya tenuiconcha Dali. 
Alaska. 
27. Cuspidaria glacial is O. O. Sars 
28. Cuspidaria glacialis G. O. Sars. 
Bering Sea. 
29. Milneria minim Dali.? 
30. Milneria minim Dali.... 
31. Milneria minim Dali. 
San Pedro. 
32. Phylobrya setosa Carpenter. 
33. Phylobrya setosa Carpenter. 
34. Phylobrya setosa Carpenter. 
35. Phylobrya setosa Carpenter. 
San Pedro. 
Page 
. 86 
. 86 
. 86 
. 103 
.. 135 
.. 135 
. 135 
.. .135 
(figured only) 
(figured only ) 
. 132 
__ 132 
. 132 
.. 132 
. 103 
. 103 
. 103 
.. 103 
.. 117 
. 117 
. 117 
. 117 
. 117 
. 95 
. 95 
. 95 
. 98 
. 98 
.. ...117 
. 117 
... 117 
49 
49 
49 
49 
