236 BULLETIN 68, UNITED STATES NATIONAL MUSEUM. 



raso. 



Fig. 14. Turhonilla ( Turhonilla) acra, new species, type 10 mm 32 



15. Turhonilla (Chemnitzia) houseri, new species, type 3.7 mm 37 



15a. Nucleus of same, lateral view much enlarged. 



16. Turhonilla {Chemnitzia) kelseyi, new species, type 4.7 mm 39 



16a. Nucleus of same, lateral view much enlarged. 



17. Turhonilla {Chemnitzia) raymondi, new species, type 6.2 mm 39 



17a. Nucleus of same, lateral view much enlarged. 



18. Turhonilla { Turhonilla) prolongata Carpenter, type 5.37 mm 33 



Copy of a camera lucida sketch by Dr. Carpenter. 



Plate 3. 



Fig. 1. Turhonilla {Strioturhonilla) asser, new species, type 8.3 mm 45 



The fine spiral striations have been omitted in this figure, 

 la. Nucleus of same, lateral view much enlarged. 



2. Turhonilla {Strioturhonilla) nicholsi, new species, type 8.8 mm 46 



3. Turhonilla {Strioturhonilla) c- h- adamsi Carpenter, type 3.75 mm 52 



The fine spiral striations have been omitted in this figure. 

 Copy of a camera lucida sketch by Dr. Carpenter. 



4. Turhonilla {Strioturhonilla) huttoni, new species, type 6.3 mm 43 



The fine spiral striations have been omitted in this figure. 

 4a. Nucleus of same, lateral view much enlarged. 



5. Turhonilla {Strioturhonilla) mexicana, new species, type 4.5 mm 45 



The fine spiral striations have been omitted in this figure. 

 5a. Nucleus of same, lateral view much enlarged. 



6. Turhonilla {Strioturhonilla) simpsoni, new species, type 6.7 mm 49 



The fine spiral striations have been omitted in this figure. 

 6a. Nucleus of same, lateral view much enlarged. 



7. Turhonilla {Strioturhonilla) stylina Carpenter, type 6.5 mm 48 



The fine spiral striations have been omitted in this figure. 

 7a. Nucleus of same, lateral view much enlarged. 



8. Turhonilla {Strioturhonilla) stephanogyra, new species, type 4.8 mm. . . 42 



The fine spiral striations have been omitted in this figure. 

 8a. Nucleus of same, lateral view much enlarged. 



9. Turhonilla {Strioturhonilla) carpenteri, new species, type 7.9 mm 49 



The fine spiral striations have been omitted in this figure. 

 9a. Nucleus of same, lateral view much enlarged. 



10. Turhonilla {Strioturhonilla) humerosa, new species, type 6 mm 52 



The fino spiral striations have been omitted in this figure. 

 10a. Nucleus of same, lateral view much enlarged. 



11. Turhonilla {Strioturhonilla) profundicola, new species, type 6.3 mm... 50 



The fine spiral striations have been omitted in this figure. 

 11a. Nucleus of same, lateral view much enlarged. 



12. Turhonilla {Strioturhonilla) panamensis C. B. Adams, type 5.5 mm. . . 42 



The fine spiral striations have been omitted in this figure. 

 12a. Nucleus of same, lateral view much enlarged. 



Plate 4. 



Fig. 1. Turhonilla {Strioturhonilla) calvini, new species, type 3.1 mm 48 



The fine spiral striations have been omitted in this figure, 

 la. Nucleus of same, lateral view much enlarged. 



2. Turhonilla {Strioturhonilla) imperialis, new species, type 3.3 mm 57 



2a. Nucleus of same, lateral view much enlarged. 



