UNIVALVES_— NERITA. 175 
Division I.—Shell umbilicated. 
Famity 1—With the umbilicus rather large, nearly pervious. 
Scientific Name. Locality. Common Name. 
Vitellus «-+.eee. Mauritius,Amboyna, Asia Clouded yellow N. 
Punctata «+++. Mediterranean -+--+ e+ Punctured - do -- 
Cruentata:+------ Tranquebar «+ ++++++-++> Red-spetted do -- 
Rugosa -+-++..-- West Indies --++-+-+-+-- Wrinkled - do -- 
Mattatay ‘helsie sieis!<.« INTOTOGEO Ie oe eieleteiereyereret<ts Ribbon --- do -- 
Pallidula -+--..- England «+++ s+reeeeees Pailid ---- do- 
Faminy 2.—With the umbilicus bifid. 
Canrena -:-++++-- All parts of the world --- ‘Taby-cat -- do «> 
Cancellata -++--- West Indies --++-+--+-- Latticed -- do -- 
SlGataehide sisal) Se ce occessdeeaanee teas Grooved -- do «- 
Spadicea-+++--+-- Mauritius --------- -sees Chesnut -- do -- 
Rufa -eeeeeeeeee East & West Indies ---- Reddish ---do -- 
Famity 3.—With the umbilicus nearly closed by a callus, or by the 
inner lip. 
Glaucina --+---- Europe, Africa, America, 
East Indies ---+--+-+++- Livid ---- do-:- 
Orientalis -+---- I. Indies, Bay of Naples Eastern --+ do -- 
Maroccana-+---- Africa, W. Indies, Naples Wave-striped do 
Arachnoidea +--+ sees reece ce eere cere eee Spider's web do - 
Albumen «+++: Amboyna, C. G. Hope, 
Moluccas ----+--+--- Liver color'd do 
Mammilla ------ Do.Mauritius,Tranquebar Breast ---- do -- 
Papilla --------- N. Zealand, Tranquebar Nipple it do -- 
Melanostoma--++ Mauritius, West Indies -- Brown pillar do + 
Ambigua -++++++ Mediterranean «---++ +++ Ambiguous do -- 
Faminy 4.—With the wnbilicus toothed. 
Fulminea ---+++- Senegal, Moluccas --+-- Ziczac -++ do +- 
