Plate 52 
This plate from United States National Museum, Bulletin 68. 
FIGURE PAGE 
1. Turbonilla gouldi Dali and Bartsch. Ill 
Cotype. 
la. Nucleus of same, lateral view, much enlarged. Ill 
2. Turbonilla gibbosa Carpenter.Not in text 
Type, Mazatlan. Copy of a camera lucida sketch by Dr. Carpenter. 
3. Turbonilla ncivcombci Dali and Bartsch. 108 
Type. 
4. Turbonilla aurantia Carpenter. 123 
Type. 
5. Turbonilla berryi Dali and Bartsch. 112 
Type. 
5a. Nucleus of same, lateral view, much enlarged. 112 
6. Turbonilla lyalii Dali and Bartsch. 120 
Type. 
6a. Nucleus of same, lateral view, much enlarged. 120 
7. Turbonilla taylori Dali and Bartsch. 109 
Cotype. 
7a. Nucleus of same, lateral view, much enlarged. 109 
8. Turbonilla voidest Dali and Bartsch. 108 
Type. 
9. Turbonilla alaskana Dali and Bartsch. 114 
Type. 
10. Turbonilla ridgwayi Dali and Bartsch. 107 
Type. 
10a. Nucleus of same, lateral view, much enlarged. 107 
11. Turbonilla lowci Dali and Bartsch. 112 
Type, 
11a. Nucleus of same, lateral view, much enlarged. 112 
12. Turbonilla pedroana Dali and Bartsch. 121 
Type. 
12a. Nucleus of same, lateral view, much enlarged. 121 
