41 



2741 Siphonaria vernalis 



1074 Siphonaria thersites Carpenter. 



3164 Siphonaria aequilirata Cpr., 1867. 



2466 Sistrum carbonarium Sby. 



1068 Skenea planorbis Fabricius. 



1069 Solariella perambilis Carpenter. 

 1333 Solecardia eburnea Conrad. 



363 Solecurtus calif omianus Conrad 



364 Variety Subteres Conrad 

 100 Solen rosaceus 



362 Solen sicarius Gould 



1070 Styliferina turrita Carpenter. 

 1435 Solariella carlotta Dall. 



1256 Solariella cidaris Cpr. 



1257 Solariella varicosa Mighels and Adams. 



2742 Solariella inula 



563 Solariella oxybasis Dall. Off S. Barbara Is!., in 414 fms. 



2082 Solariella triphostephanns 



529 Solemya johnsoni Dall. 



217 Solecurtus calif ornianns Conr 



2672 Solemya panamensis Dall. 



2673 Solemya valvulus Cpr. 



2674 Solemya Agassizii Dall. 



2675 Solemya ventricosa Conr. 



2964 Sonorella virilis 



2965 Variety circumstriata 



2966 Variety Huachucana 



2967 S: Hachitana Ashmuni 



2968 Variey Bowiensis. Bowie, Arizona. 



2969 Variety Rowelli. (Helix Rowelli Newc.) 



2970 S: Granulatissima parva. Arizona. 



2971 Variety Latior 



2659 Sonorella Indioensis 



2660 Sonorella coloradoensis 

 2253 Sonorella argus 



2042 Sonorella granulatissima 



2482 Sonorella Lohrii lioderma 



2484 Sonorella Ashmuni 



2485 Sonorella Dalli 



2486 Sonorella Baileyi 



2487 Variety Orcutti Bartsch. 



2488 Sonorella Fisheri Bartsch, 1. c. 

 2421 Sonorella walcottiana 



2381 Sonorella betheli 



2661 Sonorella Hachitana 



2662 Sonorella Nelsoni 



2663 Sonorella Goldmani 



2664 Sonorella Merrilli 



2665 Sonorella Mearnsi 



2666 Sonorella Magdalenensis 



2667 Sonorella Lohrii 



2668 Variety lioderma Pilsbry. 



2669 Sonorella Arizonensis 



2670 Sonorella Rowelli 



1184 Sphsenia californica Conr. 



1183 Sphaenia ovoidea Carpenter. 



1689 Sphaerium dentatum Hald. 



2535 Sphaerium Hendersoni 



