Plate 83 
This plate from Proceedings of the United States National Museum. 
FIGURE PAGE 
1. Rissoina californica Bartsch . 106 
Type. 
2. Rissoina dalli Bartsch . 107 
Type. 
3. Rissoina clco Bartsch . 105 
Type. 
4. Rissoina bakeri Bartsch . 105 
Type. 
5. Rissoina ccrroccnsis Bartsch .Not in text 
Type. 
6. Rissoina mexicana Bartsch .Not in text 
Type. 
7. Rissoina nezveombei Dali . 108 
Type. 
8. Rissoina coronadocnsis Bartsch . 107 
Type. 
9. Rissoina histia Bartsch .Not in text 
Type. 
