102 UNIVALVES.— BULLA. 
Scientific Name. Locality. Common Name. 
Zonata-+-.++++- Tranquebar ---+--+++-+-- Zoned Dipper - - 
Wanclinl ata vereravstett) Meeitiovayetetaracvevetatece ce OG CG +  Undulated- do -- 
Seallptaluerieteisieratcrs AAA aishelsvaleteleveraleters nO Rough a6 cron (6 (Ne0.0 
Drviston IV.—Shell pyriform, with produced beak. 
Ficus +++++-+-++- Indian Ocean, Amboyna Fig -----: do -- 
Pyrum csejehl qistsfadedeh | ajexeje;aieusye Coe e eee ree ttre Pear ----:- dol ik 
Rapa -+-+-++++-- Amboyna, Asiatic Ocean Turnip shap’d do 
Canaliculata ----  +---- Cte eee eees eeeeee - Channelled do -- 
Drviston V.—Shell generally thin, spire prominent, and body 
whorl inflated. ~ 
Voluitas ssc ccenice, esceeetcccsacicscnevinnce Volute ---. do-- 
Dominicensis ---+ St. Debian sees enee Nine whorl’d do - - 
Crassula ---+++«- Virginia, West Indies -- Reversed -- do - 
Fontinalis ------ Britain «+++ ++eeeeeeeees Fresh water do -- 
Rivalis:+<«se+eere IDWiaroy WonouUcoCcooD OL on River --.-- Goi 
Hypnorum spayeiicne Ditto occscencscscccccce Slender --- do-- 
Gelatinosa ---+-- Denmark -++++++++++--- Gelatinous do -- 
Virginea ---+ -- West Indies -++----+++-- Ribbon --- do -- 
Fasciata «+ -++++- East and West Indies-2-- Banded ->- do -- 
Strigata BA CO MRO OOS) OCC OOmIaD 6 Dict Yellow streaked 
Striatula.----+> Sth heuerelorehaieasieps¥elets}ste|ayeyeVaialn:® Striated -- do.-- 
Exarata -----++- Guinea +++++-s see - Wrinkled - do -- 
Truncata ---+-+++  cereeee Scoovadood e5\dcdc Truncated- do -- 
Priamus «+++ --» Guinea, West Indies ---- Priam ---- do-- 
Zebra -ceerseces Ditto «+--+ cocscececesees Zebra «++» do -- 
Achatina -+-+«: - E. Indies, Africa, America Broad strip’ ddo- 
Purpurea:--+-+-- Africa seer esses ee eceee Purple mouth’d a 
Sinistrorsa «+++ -- Ditto ---- cere reece eee Great revers’d do « 
Drviston VI.—Shell cylindrical, with a subulate spire and truncate 
base. 
Terebellum ----- Amboyna ---+++-+++++++ Awlshap'd do -- 
