366 CALIFORNIA ACADEMY OF SCIENCES. 



EXPLANATION OF PLATE IL 



(all figures MAGNIFIED.) 



Tiirbonil/a ( Lancea) tridenlata Carpenter. Longitude 12. 8 mm.; X5. 273 



Same Nuclear whorls more enlarged. 273 

 Turbonilla (Pyrgiscus) subcuspidata Carpe.VTER. Type specimen. Longitude 



6 mm.; xg. 277 

 Same. Nuclear whorls more enlarged. 277 

 Turbonilla ( Pyrgolampros) lowei var. pedroana Dall & Bartsch. Type speci- 

 men. Longitude 5.5 mm.; xio. 279 

 Same. Nuclear whorls more enlarged. 279 

 Turbonilla lorquata Gould. Longitude 10.6 mm.; x6. 271 

 Same. Nuclear whorls more enlarged. 271 

 Turbonilla stearnsii Dall & Bartsch. Type specimen. Longitude 9.2 mm.; 



X6.7. 271 



Same. Nuclear whorls more enlarged. 271 



Turbonilla ( Pyrgiscus) crebrifilata Carpenter. Longitude 5.4 mm.; xto.7. 276 



Same. Nuclear whorls more enlarged. 276 



Turbonilla (Pyrgiscus) tenuicula Gould. Longitude 6.1 mm.; xg. 275 



Same. Nuclear whorls more enlarged. 275 



Fig. 8. Ttirbonilla ( Pyrgisculus) laminata Carpenter. Longitude 6.8 mm.; xg. 277 



Fig. 8a. Same. Nuclear whorls more enlarged. 277 



