27 



524 Galerus fastigiatus Old. 



Pugct's Sound to Str. Fuca Vancouver's I. 



525 Galerus contortus Cpr. 

 Lobitos Creek to Santa Barbara. 



526 Crucibulum spinosum Sby. 



San Pedro south to Peru, South America. 



527 Crucibulum scutellatum Gray. 

 Santa Cruz, Cal. Lower Cal. to Peru. 



528 Crepidula aculeata Gmd. 

 Monterey south Asia Atlantic. 



529 Crepidula dorsata Brod. 



Str. Fuca to Santa Barbara 1 Peru. 



530 Crepidula dorsata var. ? lingulata Gld. 

 Str. Fuca to Mazatlan. 



531 Crepidula excavata Brod. 



Santa Barbara ? Sitka 1 Mexico to Peru. 



532 Crepidula adunca Sby. 



Str. Fuca to Santa Barbara Mexico ? 



533 Crepidula rugosa Nutt. 



Sta. Barbara to S. Diego Mex. to Peru ? 



534 Crepidula navicelloides Nutt. 

 Str. Fuca to Santa Barbara. 



535 Crepidula navicelloides var. num- 

 Str. Fuca to San Pedro. [maria Gld. 



536 Crepidula navicelloides var. fimbri- 

 Str. Fuca. [ata Rve. 



537 Crepidula navicelloides var. explan- 

 Str. Fuca to San Pedro. [ata Gld. 



538 Hipponyx cranioides Cpr. 

 Str. Fuca to Santa Barbara. 



539 Hipponyx antiquatus Linn. 

 Monterey south 1 S. America. Atlantic. 



540 Hipponyx serratus Cpr. 

 Santa Barbara south Mazatlan. 



541 Hipponyx tumens Cpr. 

 Monterey to San Diego and islands. 



542 Serpulprbis squamigerus Cpr. 

 Santa Barbara to San Diego. 



543 Bivonia compacta Cpr. 

 Neeah Bay, W. T. 



544 Petaloconchus macrophragma Cpr. 

 San Diego to Panama. 



545 Spiroglyphus lituella March. 

 Santa Barbara to Cape St. Lucas. 



