68 MARINE SHELLS. 
SPIREALIS: 
Spirealis Heminwhit << 702.25 .: Forts ....;} <2... Britain 
SPIRULA. 
SPAraPerOMitincen cee oe sears Less0N . 24%. . «eee Australia 
SPONDYLUS. 
Spondylusiamericanus: .......... SSby 220.5 sedeee La Paz, Mexico 
Spondylus sinensis... <.2...4% SOY... +0. 3.1560, 2 ee China 
STELLA. 
Stella spinulosus, var.... ..... DOD. ole ee West Indies 
STRIGATELLA. 
Sirigatelia-retisas: eo. Shi oe tae DQM: 2. ie see ee Viti Is 
Strigatella er ste Ee eit es ee he) Lato Siege West Coast of Mexico 
STRIGELLA. 
Biricella Garnarian. 3.) Ses (so. anc. Acapulco 
ara el is Aepeeebet tae ot Sissies RNS ens ee eee Gulf of California 
Dkeieellaiimisiisn ms: bie wee BPG. 5. <. oe Mazatlan 
STROMBINA. 
Sirombinn- alban. Selo fe ) 
= Strombus albina......... Soy 0 8 a ee errr 
Strombina maculosa i. i625. Gbysw. + Sates Gulf of California 
Strombina Say oe apts ate .+-. ... Gulf Of Calitormne 
STROMBUS 
Strombus’alatus: 2:2. 222 ks sri -- Gina: 5 Ose Be Gulf of Mexico 
Sirombus (Strompina) albina(?):Sby..2. ... 2.0. cee 
Sironmibus cristatus... 05... .25% Lam. ) 
=" laciniatys. 2 5.5 Sie {ee 
Strombus bituberculatus........ DiGi ee ee eee Jamaica 
Strombus dentatus..........: MO See eee Indo Pacific 
irom bus fasciatus... gents sc DOT: casee eee eee Red Sea 
