354 CALIFORNIA ACADEMY OF SCIENCES. 



EXPLANATION OF PLATE L 



(all figures magnified.) 



Fig. I. Turdom7/t! fLancea) penia/op/ia Dai^i. & Bartsch. Type specimen. Longitude 



8.5 mm.; x6. 274 



Same. Nuclear whorls more enlarged. 274 



Tiirbo7iilla (Pyrgolampros) gibbosa Carpenter. Longitude 5.6 mm. ; X9.3. 279 



Same. Nuclear whorls more enlarged. 279 



Odoitomia (Oscilla) cequismlpta CARPENTER. Type specimen, not fully mature. 



Longitude 2 mm.; xi3. ^°4 



Same. Nuclear whorls more enlarged. 284 



Turbomlla (Pyrgiscus) auricoma Dall & Bartsch. Type specimen. Longitude 



7.2 mm.; x6.2. 274 



Same. Nuclear whorls more enlarged. 274 



Turbonilla (Pyrgolampros) lowei Dall & Bartsch. Type specimen. Longitude 



7.2 mm. ; x6.2. 27° 



Same. Nuclear whorls more enlarged. 278 



Odostomia ( Oscilla) grammatospira Dall & Bartsch. Type specimens. Lon- 

 gitude 5.3 mm.; xio. 285 

 Same. Nuclear whorls more enlarged. 285 

 Turbo7iilla (Pyrgolampros) arnoldi Dall & Bartsch. Type specimen. Lon- 

 gitude 7.6 mm. ; x6.2. 279 

 Odostomia ( Chrysallida) diegensis Dall & Bartsch. Type specimen; the lower 



right-hand portion of the aperture defective. Longitude 4 mm. ; xn. 284 



Turbonilla (Pyrgolampros) adleri Dall & Bartsch. Type specimen; the apex 



defective. Longitude 9.3 mm.; X5. 280 



Turbonilla (Strioturbonilla) iorquata var. stylina Carpenter. Longitude 8 mm.; 



X7.25. 272 



Fig. \oa. Same. Nuclear whorls more enlarged. 272 



Fig. II. Odostomia (Amaura) muifonnis m.\x. avellana Carpenter. Type specimen. 



Longitude 9. 1 mm.; XS- 283 



Fig. 12. Odostomia (Evalea) stearnsii D.vll & Bartsch. Type specimen. Longitude 



5.2 mm.; X9.2. 28:: 



Fig. 13. Odostomia (Amaura) pupiformis Carpenter. Type specimen. Longitude 



6.5 mm.; X7. ^^3 



Fig. 14. Odostomia tenuis Q.AKV^Vi-X'i.R. Longitude 5.7 mm.; x8. 281 



Fig. 15. Odostomia (Evalea) gouldii Carpenter. Longitudes mm.; X9- 282 



