110. Astarte Danmoniensis. Crassina, Lam. Fluviatile Conchacea. 111. Cyclas rivicola. Cornea, Megerle. 112. Pisidium amnicum. Pisum, Megerle. 113. Cyrena fuscata. Corbicula, Megerle. 114. Cyrenoides Dupontia. 115. Potamophila radiata. Galathæa, Lam. _v._ ventral margin. Marine Conchacea. 116. Cyprina vulgaris. Arctica, Schum. 117. Cythera Meretrix; _e._ escutcheon. 117 _a._ C. Meroe; _Gen._ Meroe. 117 _b._ C. Tripla; _Gen._ Trigona. 117 _c._ C. maculata; _Gen._ Chione. 117 _d._ C. Castrensis; _Gen._ Circe. 118. Artemis lincta; _s_, sinus in the Palleal impression. 119. Venus cancellata. Antigona, Schum. _a._ anterior; _p._ posterior; _c._ cardinal teeth. 119 _a._ V. Verrucosa. Dosina, Schum. 120. Pullastra Textile. _Fam._ Cardiacea. 121. Venericardia, recent species, resembling V. planicostata, Lam. 122. Cardium Dionæum. Cardissa, Sw. Hemicardium, Nonnull. 123. ---- angulatum. 123*. ---- Greenlandicum. Aphrodita, Lea, Acardo, Sw. 123**. --- hemicardium. _Gen._ Hemicardum. 124. Cardita calyculata. 125. Cypricardia angulata. 126. Isocardia Moltkiana. 127. Megalodon cucullatus, (from Sow. Min. Con.) 128. Hippagus Isocardioides, (from Lea.) 129. Hippopodium ponderosum, (from Sow. Min. Con.) 130. Pachymya gigas, (from Sow. Min. Con.) _Fam._ Arcacea. 131. Arca antiquata. 132. Bysso-arca Noæ. 133. Cucullæa auriculifera, (from Sowerby's Genera.) 134. Pectunculus pilosus. 135. Myopara costata, (from Lea.) 136. Crenella. 137. Nucula margaritacea, three views. 138. Solenella Norrissii. _Fam._ Trigonacea. 139. Trigonia pectinata. 140. Castalia ambigua. Tetraplodon pectinatus, Spix. _Fam._ Nayades. 141. Alasmodon complanatus, Say. Margaritana, Schum. 142. Dipsas plicatus, Leach. Cristaria, Schum. 143. Hyria corrugata, Lam. Paxyodon, Schum. Triplodon. 144. Syrmatophora, Sow. Prisodon, Schum. Diplodon, Spix. 145. Unio littoralis, Lam. Mysca ovata, Turton. 147. ---- Alatus. Symphynota, Lea. 148. ---- Atratus, Lam. Naia, Sw. 149. Monocondylæa Paraguayana. 150. Iridina elongata. Pleiodon, Conrad. } Platiris, Lea. } 151. Mycetopus solenoides, D'Orb. Spatha, Lea. } 152. Anodon Cataractus. _Fam._ Chamacea. 153. Chama Lazarus. Jataronus, Adanson. 154. Diceras perversum, (from Sowerby's Genera.) 155. Etheria semilunata. _Order_, MONOMYARIA. _Fam._ Tridacnacea. 156. Hippopus maculatus. 157. Tridacna elongata. _Fam._ Mytilacea. 158. Mytilus achatinus. 159. ---- polymorphus. Dreissina. 160. Modiola Tulipa. 161. Lithodomus Dactylus. 162. Pinna saccata. _Fam._ Malleacea. 163. Avicula Hirundo.
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