UNIVALVES_—.VOLUTA. 107 
Diviston IV.—Shell sub-cylindrical, enamelled, and emarginated. 
Famity 1.—Spzre rather obtuse. 
Sczentific Name. Locality. Common Name. 
Porphyrea ------ W. Indies, South America Porphyry Volute 
Erythrostoma -- Amboyna, Mauritius, S. 
Seas -++ree reece eeee Orange mouth’d 
Oliva --++-+- «- Ditto, South Seas, Brazils, 
East & West Indies -- Olive ----. do -- 
Ventricosa ------ Mindana, Moluccas ---- Ventricose do -- 
Incrassata -----+ - Moluccas, Brazils ------ Thickened do .-- 
Pinguis avelal afieletelans ESTA si tcieivisteietelerc elelohe islets Quaker --- do-- 
Tigrina -----+-- Eastern Ocean --+-++++- Tiger ----- do -- 
Carneola ----+-- Moluccas +++++++eees- Carnelian - do -- 
Micans -+---+++- Ditto, Mauritius ------- Tittle: acer Mais 
Famity 2.—Spire prominent or conical. 
Cruenta -+--+++> Amboyna, Mauritius ---- Orange-throat do- 
Annulata «++-++-- Ditto * ais = os siclevdomatele Jere Ringed sivicie) GQ's 
Gibbosa --+ ++ +++: Coromandel, Madagascar Gibbous -- do -- 
Ispidula -------- Moluccas --+++-+++++++- Enamelled- do .- 
Hiatula ----++-+-: Africa -eecceseccccccces Gaping vie) GO’ <« 
Ampla piojisiclsiefeleieis! | Mple/clels’s/=\ele[e/vle! «isl slate iel(«is)'se Large Sooe (i) 54 
INave@d ce -\cie = oi Wiest. Indies -cuslerccteun. =. Snowy doo Gy iad 
Jaspidea eoreratsiers Philippines erate’ ore csheraieve Jasper Sato Gt 06 
Ancilla «<-+++s++ corer rete seers ec eeeees Damsel --- do -- 
Nitidula -.------ Ditto, Moluccas,Mauritius Delicate -- do -- 
Oryza er ee ere erereee se sscsege ee Rice eeoveee do ee 
Drviston V.—Shell fusiform, generally striated or ribbed, either 
longitudinally or transversely. 
Famity 1.—Spire less than half the length of the shell. 
Crenulata ++++--- East Indies --->--- ---++ Crenulated do -- 
