Rissoa capensis, 38 
fenestrata, 37 
nigra, 38 
pinne, 37 
Rissoina elegantula, 37 
Saxicava arctica, 55 
australis, 55 
rugosa, 55 
Scalaria clathratula, 24 
clathrus, 24 
coronata, 24 
fragilis, 24 
fucata, 24 
lactea, 24 
psendosealaris, 24 
replicata, 24 
Scapharca, 65, 66 
Schizodesma, 56 
Scutum imbricatum, 49 
Separatista Grayi, 16 
Siliqua, 54 
Siliquaria anguina, 39 
obtusa, 39 
Siphonalia mandarina, 4: 
Siphonaria aspera, 53 
albofasciata, 54 
capensis, 53 
concinna, 54 
lineolata, 54 
natalensis, 54 
oculus, 54 
venosa, 54 
Siphonium, 39 
Sistrum anaxares, 15 
arachnoides, 15 
asperum, 15 
elatum, 15 
fiscellum, 15 
granulatum, 15 
heptagonale, 15 
lividum, 15 
morus, 15 
ochrostoma, 15 
tuberculatum, 15 
Solariella dilecta, 44 
fusco-maculata, 44 
INDEX. 87 
Solariella undata, 44 
Solarium cingulum, 28 
cancellatum, 28 
perspectiviunculum, 28 
variegatum, 28 
Solen Gouldi, 54 
marginatus, 54 
regularis, 54 
Solen, 54, 55 
Solidula, 52 
Spirula Peroni, 1 
Standella Solandri, 56 
Stomatella articulata, 46 
cancellata, 47 
sulcifera, 46 
sulcifera, 47 
Strephopoma, 39 
Strombus cylindricus, 30 
floridus, 30 
gibberulus, 30 
mauritianus, 30 
mutabilis, 80 
Styliola recta, 2 
aciculata, 2 
Sunetta ovalis, 59 
Syrnola aciculata, 25 
capensis, 25 
Tapes africanus, 60 
corrugatus, 59 
Cumingii, 60 
dactyloides, 59 
Deshayesi, 59 
geographus, 59 
Kochi, 60 
Kraussi, 60 
pauperculus, 59 
pullastra, 59 
rugosus, 59 
textrix, 59 
Teinostoma lucidum, 13 
Tellina calcarea, 57 
capsoides, 56 
Crawfordi, 57 
cumana, 57 
fabula, 56 
