— 2B — 



A diluvii, Lamk. Very rare, 

 A. lactea, Larak. Not common. 

 A. imbricata, Polii. 



Arcit fossiles. 



Casts of Arca are found in bed No. 1, the coralline liinestone, 



and in Bed No. 2, the yellow sand. (T. Wright). 



Genus Pectunculus, Lamk. 



P. stellatus, Lamk. ; sive P. pilosus, Lamk. Maltese name 



Arzella tal bellus. Abundant. 

 P. violacescens, Lamk. Eare. 

 P. lineatus, Phil. Very rare. 

 P. glycymeris, Lamk. * Rare. 



Genus Nucula, Lamk. 



N. margaritacea, Lamk. Common inmuddy bottoms. 

 N. emarginata, Lamk. Rare. In fissures of the rock in 

 sandy and muddy localities. 



XIII. Familia CHAMACEA, Lamk. 



Genus Chama, L. 



C. gryphoides, L. Maltese name Lcuza. Common. At- 



tached to rocks and large sbells. 

 C. gryphina, Lamk. Kare, 



XIV. Familia MYTILACEA, Lamk. 



Genus Modiola, Lamk. 



M. tulipa, Lamk. Maltese natne Tamra ta V alca. Not 

 common. Attachcd to seaweed. Length 27 millimetres; 

 breadth 51. 



