118 EXPLANATION OF PLATES. 
FIG. 
47 Lignite, pierced by Teredine. 
48 Teredo navalis; a, tube (from Sowerby’s Genera. ) 
49 Wood bored by Teredo. 
50 Xylophaga dorsalis. 
51 The same, in wood. 
52 Gastrochena Modiolina, in the tube (from Sowerby’s 
Genera. ) 
53 Fistulana Clava, 2 
Shae aineane a2 | Grom Sowerby’s Genera.) 
Fam. Pholadaria. 
55 Pholas Dactylus, a, plates of the hinge. 
56 papyracea ; Pholidza. 
57 Pholadomya candida. 
58 Galeomma Turtoni. 
59 Front view of the same. 
Fam. Solenacea. 
60 Solen ensis. Ensis, Schum. 
61 Solenocurtus radiatus, Bl. Solen, Lam. Leguminaria, 
Schum. 
62 Lepton squamosum, from Turton. 
63 Novaculina gangetica. 
64 Glanconome Chinensis. 
65 Panopza Australis. ; 
66 He of Panopzea Fanjasit. }(fO™ SOWer Dy Sa 
67 Glycimeris Siliqua. 
68 Solenimya Mediterranea. 
Fam. Myaria. 
69 Anatina rostrata. 
70 Anatinella Sibbaldii. 
71 Mya truncata. 
72 Periploma inequivalvis, Osteodesma, Schum; a. bone of 
the hinge (from Blainv.) 
73 Myochama anomioides; lower valve with clavicle, and 
hinge of upper valve. 
74 External view of the same, attached to a Trigonia. 
75 Cleidotherus Chamoides, attached valve. 
76 Upper valve of the same, with the clavicle. 
Fam. Mactrade. 
77 Lutraria papyracea. Ligula, Leach, Carinella, Adans. 
78 Solenoides. Cultellus. ? 
79 Mactra Stultorum. 
80 plicataria; Spisula? Gray. 
