40 



1054 Scala bellastriata Carpenter. 



1055 Scala crebricostata Carpenter. 



2538 Scala Berryi 



2539 Scala rectilaminata 



2540 Scala (Cirostrema) Montereyensis 

 2533 Scala Low ei 



2740 Scala Sawina; 2465 



1567 Scala Grcenlandica Perry. 



1056 Scala cumingi Carpenter. 



1057 Scala gracilis? Sowerby. 



1058 Scala hindsii Carpenter. 



1059 Scala indianorum Carpenter. 



1060 Scala occidentalis Nyst. 



1061 Scala retiporosa Cpr. 



348 Scalaria gracilis 



349 Scalaria snbcoronata 



190 Scalaria hindsii Cpr and var snbcoronata 



191 Scalaria indianorum Cpr 



192 Scalaria bellastriata Cpr 



350 Scalaria tincta 



1585 Scaphella (Voluta) Arnheimi 



1062 Scaphella stearnsii Dall. 

 2422 Schismope rimuloides Cpr. 

 283 Schizothaerus nuttallii Conr 

 604 Scissilabra dalli 



2529 Scissurella (Schizotrochus) KeLseyi 



1071 Scurria gigantea Gray. 

 2304 Scurria mesoluca Menke. 

 3715 — Seila assimilata C. B. Ad. 

 565 Seila montereyensis 



1577 Selenites sportella Gould. 

 1194 Selenites sportella Gould. 



1063 Selenites vancouverensis Lea. 



1072 Selenites simplicilabris Ancey. 



1499 Selenites Vancouverensis Keepi 



1500 Selenites Vancouverensis hybrida 

 104 Semele decisa 



2326 Semele proxima C. B. Ad. 



410 Semele pulchra Sowerby. 



1178 Semele rubropicta Dall. 



290 Semele rnpium Sby. 



473 Serpulorbis squamigerus Carpenter. 



1342 Serridens oblonga Cpr. 



1163 Serripes centifilosum Carpenter. 



1064 Serripes greenlandicus Chemnitz. 



1065 Serripes laperousi Lamarck. 

 128 Septifer bifurcatus 



1073 Sigaretus concavus Lamarck. 

 183 Sigaretus debilis Gld 



1941 Sigaretus Oldroydi Dall. 



2008 Siliqua patula alta 



2009 Siliqua media Gray. 



2010 Siliqua Nuttallii Conrad. 

 278 Siliqua lucida Conr 



1066 Siliqua patula Dixon. 



1226 Sipho angustus E. A. Smith, ann mag nat hist, ser 5, 6:287. 



156 Siphonalia kellettii Fbs 



1067 Siphonaria brannani Stearns. 

 3165 Siphonaria lecanium Philippi, 1846. 

 2266 Siphonaria lecanium Cpr. 



