WEST AMERICAN PYRAMIDELLID MOLLUSKS. 237 



Page. 



Fig. 3. Turbonilla {Strioturbonilla) serrx J)sil\ and Bartsch, type 7 .7 mm 53 



The fine spiral striations have been omitted in this figure. 

 3a. Nucleus of same, lateral view much enlarged. 



4. Turbonilla {Strioturhonilla) phanea, new species, type 3.2 mm 56 



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



5. Turbonilla (Strioturbonilla) aresta, new species, type 6.4 mm 54 



The fine spiral striations have been omitted in this figure. 

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



6. Turbonilla (Strioturbonilla) gracilior C. B. Adams, type 6.1 mm 58 



The fine incised spiral lines of the intercostal spaces have been 

 omitted in this figure. 



7. Turbonilla {Strioturbonilla) galapagensis, new species, type 3.5 mm. . . 55 



8. Turbonilla (Strioturbonilla) undata Carpenter, type 1.6 mm 55 



The spiral striations have been somewhat exaggerated. 

 Copy of a camera lucida sketch by Dr. Carpenter. 



9. Turbonilla (Strioturbonilla) vancouverensis Baird, type 6 mm 44 



The fine spiral striations have been omitted in this figure. 



10. Turbonilla (Strioturbonilla) smithsoni, new species, type 4 mm 57 



The fine incised lines of the intercostal spaces have been omitted 

 in this figure. 

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



11. Turbonilla (Strioturbonilla) attrita, new species, type 7.4 mm 46 



The fine spiral striations have been omitted in this figure. 

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



12. Turbonilla (Strioturbonilla) galianoi, new species,- type 6.1 mm 51 



The fine spiral striations have been omitted in this figure. 

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



13. Turbonilla (Strioturbonilla) pazana, new species, type 5.7 mm 54 



The fine spiral striations have been omitted in this figure. 

 13a. Nucleus of same, lateral view much enlarged. 



14. Turbonilla (Striolurbonilla) affinis C . B. Adams, type 5.3 mm 56 



The fine incised spiral lines of the intercostal spaces have been 

 omitted in this figure. 



15. Turbonilla (Strioturbonilla) ior^ua to Gould, type 6.5 mm 47 



The fine sy)iral striations have been omitted in this figure. 

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



Plate 5. 



Fig 1. Turbonilla (Pyrgolampros) kcepi, new species, tyj)e 11.7 mm 71 



2. Turbonilla (Pyrgolampros) halistrepta, new species, type 9.5 mm 72 



The fine spiral striations have been omitted in this figure. 



3. Turbonilla (Pyrgolampros) victoriana Dall and Bartsch, type 7 mm 61 



The fine spiral striations have been omitted in this figure. 



4. Turbonilla (Pyrgolampros) painei, new species, type 7.3 mm 71 



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



5. Turbonilla (Pyrgolampros) oregonensis Dall and Bartsch, type 8.5 mm. 73 



The fine spiral striations have been omitted in this figure. 



6. Turbonilla (Ptycheulimella) obsolcta Carpenter, type 1.5 mm 59 



Copy of a camera lucida sketch by Dr. Carpenter. 



7. Turbonilla (Ptychi'ulimella) abreojensis, new species, type 5.2 mm 59 



The fine spiral striations have been omitted in this figure. 



8. Turbordlla (Pyrgolampros) lituyana, new species, type 11.5 nim 73 



