sowerbyi 251, 
845, 351 
speciosa 246, 
257, 263, 
529, 839, 
sphaerica --- 
851 
sphaerion 252, 
881, 554, 
spreta …— 
sprebtus --— 
stabilis --- 
straminea 
streptostoma 
gtrigata 
subcerinata 
850 
subglobose 
subglobosus 
sucoineta 262, 
350 
suprabadia 
358 
sylivanoides 
sylvanus --- 
Tenera 260, 
tephrodes -… 
ticaonica 245, 
349 
trailli -— 
trisculpta 
turbinoides 
381, 334, 
turbo 858, 
552, 338, 
turgens 251, 
549, 551 
turris = 
Uber -.. me 
