188 



UNIVALVES — PATELLA. 



Division IV. — Shell with the summit pointed and recurved. 



Scientific Name. 



Ungarica 



Militaris 



Antiquata 



Cochleata 



Calyptra 



Intorta 



Cassida 



Trail quebarica • 

 Mammillaris • • • 



Leucopleura •••< 



Tricariiiata 



Pectinata 



Fuseo-Lutea • • • • 



Lutea 



Perversa 



Lacustris 



Oblonga 



Locality. 

 Mediterranean, Britain • • 

 West Indies, England • • • 



Ditto 



South Seas 



N. W. Coast of America 

 S.Seas,W. Indies, England 



S. Seas, France 



Tranquebar, Batavia • • • • 

 So. Seas, Mediterranean, 



West Indies 



West Indies 



New Zealand 



Mediterranean 



Aniboyna 



Africa 



Lakes in Europe 



Rivers in Europe 



Common Name. 

 Fool's-cap Limpet 

 Hooked • • do • 

 Antiquated do • 

 White-ridged do 

 Helmet • • • do • 

 Inclining • • do • 

 Lentil-seed- do • 

 Brilliant • do • 



Nipple do • 



Small-rayed do • 

 Three-keeled do 

 Spined • • • do 

 Yellowish brown 

 Yellow • • • do • 

 Reverse tipp'ddo 

 Lake • • • • do • 

 Oblong . ■ • do • 



Division V. — Shell with a marginal fissure. 



Fissura Britain, Algiers Slit ...... do-. 



Incisa Falkland Isles Reticulated slit do 



Fissurata • ••.-• N. Zealand, Ceylon •-•- Rose-color'd do - 



Division VI. — Shell with an internal appendage at the summit. 



Equestris E. & W.Indies, Amboyna Cup-&-Saucer L. 



Neptuni So. Seas, St. Domingo - Neptune's Cap do 



Tectum Batavia, China Chinese roof do • 



Si»erisis Britain, Mediterranean, 



Batavia Chinese bonnet - 



