Plate 92 
FIGURE PAGE 
1,2. Lamcllaria rhomica Dali. 137 
American Journal of Conchology. 
3,7. Sinum debile Gould. 131 
Boston Journal of Natural History. 
4,5. Lantellaria orbiculata Dali. 136 
American Journal of Conchology. 
6. Lamcllaria ctcarnsii Dali. 135 
American Journal of Conchology. 
8. Velutina laevigata Muller. 140 
9,12. Simtni concavum .Not in text 
Put in for comparison. 
13, 14. Sinum californicum I. S. Oldroyd. 130 
Type. 
10. Sinum paciamtm Dali... 132 
United States National Museum. 
11,11a. Eunaiicina oldroydii Dali. 132 
Bulletin 112, United States National Museum. 
