52 BIVALVES. VENUS. 



Nebulosa Clouded. Callipyga Arabian. 



Exilis Abandoned. *Deflorata Purple-streaked. 



Recens Recent. Fimbriata Fringed. 



Japonica Japanese. Reticulata Netted. 



Striata Striated. Puerpera Spotted. 



Castrensis Camp. Crenulata Crenulated. 



Pectunculus Painted. Radiata Rayed. 



Lorenziana Lorenzo. Cincta Girdled. 



Ornata Adorned. Squamosa Scaly. 



Phryne Phryne. Lapicida Rock. 



Meroe Meroe. Divergens Ziczac. 

 Plumbea Leaden. 



DIVISION III. SUBORBICULAR. 



*Tigrina Tiger. Tumidula Gibbous. 



Sinensis Chinese. *Borealis Northern. 



Prostrata Compressed. Aculeata Acute-ribbed. 



Punctata Punctured. Pectinata Pectinated. 



Excisa Defaced. Discors Toothed. 



*Exoleta Antiquated. Dispar Unequal. 



Concentrica Concentric. Equivoca Equivocal. 



3 u venis Young. Divaricata Divaricated. 



Histrio Party coloured. Contraria Contrary. 



*Undata Waved. Corrugata Corrugated. 

 Scripta Written. 



DIVISION IV. SHELLS INFLECTED, WITH A LONGITUDINAL 



FURROW ON THE ANTERIOR END. 



Pensylvanica Pensylvanian. Jamaicensis Jamaica. 

 Edentula Toothless. *Spuria Spurious. 



Globosa Globose. 



DIVISION V. SHELLS SUBOVAL, AND SLIGHTLY ANGULATED 



ON THE ANTERIOR SIDE. 



FAMILY 1; Smooth or striated. 



Gigantea Gigantic. Geographica Geographic. 



Literata Lettered. Rotundata Rounded. 



