74 
PROCEEDINGS OF SOCIETIES. 
fl76 Turtonia minuta, O. Fabrictus, v. 2. p, 81. 
f 177 Kellia suborbicularis, Montagu, v. 2. p. 87. 
fl78 Kellia nitida, Turton. v. 2. p. 92. 
fl79 Kellia (Poromia) rubra, Montagu, v. 2. p. 94. 
jl80 Lepton squamosum, Montagu, v. 2. p. 98. 
f 181 Lepton convexum, Alder, v. 2. p. 102. 
fl82 Galeomma Turtoni, Sowerby. v. 2. p. 105.* 
XVII. CYCLADIDA3. 
183 Cyclas rivicola, Leach, v. 2. p. 111. 
fl84 Cyclas cornea, Linneus. v. 2. p. 113. 
fl85 Cyclas caliculata, JJraparnaud■ v. 2. p. 115. 
fl86 Pisidium obtusale, Pfeiffer. (?) v. 2. p. 118. 
|187 Pisidium pusillum, Turton . v. 2. p. 120. 
fl88 Pisidium cinereum, Alder, v. 2. p. 123. 
fl89 Pisidium nitidum Jenyns. v. 2. p. 125. 
f 190 Pisidium pulchellum, Jneyns. v. 2. p. 126. 
|191 Pisidium Henslowianum, Sheppard, v. 2. p. 128. 
fl92 Pisidium amnicum, Muller, v. 2. p. 131. 
XVIII. UNIONISE. 
193 Unio tumidus, Retzius. v. 2. p. 133. 
194 Unio pictorum, Linneus. v. 2. p. 140. 
f 195 Unio margatiferus, Linneus. v. 2. p. 142. 
jl96 Anodonta cygnea, Linneus. v. 2. p. 146. 
XIX. MYTILIDAS. 
197 Dreissena polymorpha, Pallas, v. 2. p. 155. 
fl98 Mytilus edulis, Linneus. v. 2. p. 170. 
|199 Modiola modiolus, Linneus. v. 2. p. 182. 
200 Modiola phaseolina, Philippi, v. 2. p. 186. 
f201 Modiola tulipa, Lamarck, v. 2. p. 187. 
f202 Modiola barbata, Linneus. v. 2. p. 190. 
f203 Crenella discors, Linneus. v. 2. p. 195. 
f204 Crenella marmorata, Forbes, v. 2. p. 198. 
•j-205 Crenella nigra, Gray. v. 2. p. 202. 
206 Crenella costulata, Risso. v. 2. p. 205. 
207 Crenella rhombea, Berkeley. v„ 2. p. 208. 
f208 Crenella decussata, Montagu, v. 2. p. 210. 
XX. ARC ADAS. 
f209 Nucula nucleus, Linneus. v. 2. p. 215. 
f210 Nucula nitida, Sowerby . v. 2. p. 218. 
f211 Nucula radiata, Hanley, v. 2. p. 220. 
f212 Nucula decussata, Sowerby. v. 2. p. 221. 
f213 Nucula tenuis, Montagu, v. 2. p 223. 
f214 Leda caudata, Donovan, v. 2. p. 226. 
215 Leda pygmsea, Munster, v. 2. p. 230. 
|216 Area tetragona, Poli. v. 2. p. 234. 
f217 Area lactea, Linneus. v. 2. p. 238. 
f218 Area raridentata, Searles Wood. v. 2. p. 241. 
f219 Pectunculus glycimeris, Linneus. v. 2. p. 245. 
XXI. AVICULAC EAS. 
f220 Avicula Tarentina, Lamarck, v. 2. p. 257. 
f221 Pinna pectinata, Linneus. v. 2. p. 255. 
* This mollusc is marked as Irish on the authority of a single valve marked “ Ireland,” in the col¬ 
lection of Mr. Humphreys. 
