UNIVALVES—— NAUTILUS. 83 
Minute or microscopic Shells. 
Scientific Name. Locality. Common Name. 
Calcar -+..-.++6- Adriatic «+++ ++ ++ee eres Spur Nautilus -- 
Rotatus ---+++++. Britain, Shores of Rimini Wheel --+- do -- 
Leevigatulus ---- Sandwich, Kent --++++-- Smooth++-+do -- 
Depressulus - -- - - Reculver, Kent --++ +++» Compressed do ++ 
Crispus «+++ +++. Britain, Mediterranean -- Keel-edged do -+ 
Beccarii -++-+++- Britain, S. Seas, Adriatic Beccaria’s + do +: 
Balthicus «----->-. Baltic: «+ vidibie 35\< oleinwsie « Baltic ---» do-> 
Crassulus -+++++- Reculver, Kent «++++++++ Strong --+- do «+ 
Umbilicatulus --- Kent, Devonshire ------ Umbilicateddo -- 
Lobatulus ------ Britain, Norway ----+-: Lobed ---- do -- 
Rugosus -+--+---- Southern Ocean -+-+---- Rugged --+ do - 
Umbilicatus ---- Croatia eeee++ see ee eee Oblique jointed do 
Drviston I.—Spiral, with detached whorls. 
Spirula «+-+-+++-+- E. & W. Indies, America Ram's horn do -- 
Minute Shells. 
Spengleri stefeliel's\ sf InGhR ooOGONOoOUOUDUSOOD Spengler’s - do -- 
Unguiculatus---- Ditto -++++-- s-++ sees Nail-shap’d do -- 
Diviston Ill. Elongated and almost straight. 
Minute. 
Semilituus -----> Kent, Shores of Liburni- Halfcrozier do -- 
Lituus ---++-+es0e Red Sea -++-++eee8 waiters | Orozlenie G0) 
Carinatulus ----- Kent ----- Slaterpieleleretsta/etels Keeled --- do-- 
Obliquus ----+-- Britain, Mediterranean - Obliquely striated 
Raphanistrum --- Mediterranean --------- Twelve striated 
Raphanus -- ---- Adriatic, Mediterranean: Seventeen striated 
G2 
