97 
98 
EXPLANATION OF PLATES. 119 
Mactra Spengleri. Schizosdesma, Gray, 
Mactra bicolor; Mulinia, Gray. 
Gnathodon cuneatus, Gray. 
Crassatella rostrata. 
Amphidesma reticulatum. 
Erycina plebeja. 
Cumingia mutica. 
Ungulina transversa, (from Sowerby’s Genera.) 
Fam. Corbulacea. 
Corbula nucleus. 
Pandora rostrata. 
Fam. Lithophagide. 
Petricola Roccellaria. 
Carditoidea ; Coralliophaga, Bl. 
Thracia corbuloides. 
Saxicava rugosa. 
Hiatella biaperta. 
Spheenia Binghamii. 
Venerirupis vulgaris. 
Fam. Nymphacea. 
Sanguinolaria rosea; Lobaria, Schum. 
Diphos; Soletellina, Bl. 
100 Psammobia Ferroensis. 
Corbis fimbriata. 
102 Grateloupia Moulinsii, (from Lea.) 
Egeria triangulata, (from Lea.) 
104 Lucina tigerina. 
Tellina radiata. 
lingua-felis. a, showing the fold in the ventral 
margin, 
107 Tellinides rosea, 
108 Donax cuneatus. 
113 
114 
115 
116 
Capsa Brasiliensis, young. 
Astarte Danmoniensis; Crassina, Lam. 
_ Fluviatile Conchacea. 
Cyclas rivicola; Cornea, Megerle. 
Pisidium amnicum. Pisum, Megerle, 
Cyrena fuscata. 
Cyrenoides Dupontia. 
Potamophila radiata. Galathza, Lam. v, ventral margin. 
Marine Conchacea. 
Cyprina vulgaris. 
