Plate 50 
This plate from United States National Museum, Bulletin 68. 
FIGURE PAGE 
1. Turbonilla keepi Dali and Bartsch. 116 
Type. 
2. Turbonilla halistrepta Dali and Bartsch. 117 
Type. 
3. Turbonilla victoriana Dali and Bartsch. 107 
Type. 
4. Turbonilla painei Dali and Bartsch. 116 
Type. 
4a. Nucleus of same, lateral view, much enlarged. 116 
5. Turbonilla oregonensis Dali and Bartsch. 118 
Type. 
6. Turbonilla obsoleta Carpenter.Not in text 
Type Mazatlan. Copy of a camera lucida sketch by Dr. Carpenter. 
7. Turbonilla abreojensis Dali and Bartsch.Not in text 
Type, Lower California. 
8. Turbonilla lituyana Dali and Bartsch. 117 
Type. 
9. Turbonilla chocolata Carpenter. 115 
9a. Nucleus of same, lateral view, much enlarged. 115 
10. Turbonilla halibrecta Dali and Bartsch. 110 
Type. 
10a. Nucleus of same, lateral view, much enlarged. 110 
11. Turbonilla halia Dali and Bartsch. Ill 
Type. 
