im)EX TO SPECIFIC NAJ^IES 



OF FIRST AND SECOND EDITIONS. 



Action chloroticus, 256. 

 Adeorbis costulata, 278. 

 Admete viridula, 391. 

 ^Eolis Bostonicnsis, 241. 



despccta, 248. 



diversa, 247. 



gymnota, 249. 



Mananensis, 242. 



papulosa, 238. 



picta, 246. 



pilata, 243. 



purpurea, 246. 



rufibranchialis, 242. 



salmonacea, 240. 



stellata, 245. 

 Alasmodon. See Margaritana. 

 Alderia Harvardiensis, 254. 

 Alexia myosotis, 463. 

 Amauropis lielicoides, 348. 

 Ainicula Emersonii, 264. 

 Amnicola graiium, 294. 



Idjjidarta, 295. 



limosa, 293. 



pallida, 292. 

 Anatina papyracea, 66. 

 Ancula sulphurea, 233. 

 Ancylus f'uscus, 502. 



parallelus, 501. 



rirukiris, 501. 

 Anodon fluviatilis, 178. 



iniplicata, 180. 



undulata, 182. 

 Anomia aculeata, 204. 



electrica, 205. 



ephippium, 204. 



squamula, 206. 

 Aphrodite Grtenlandica, 144. 

 Aporrhais occidentalis, 320. 

 Appendicularia, 13. 



furcata, 13. 



lonijicauda, 13. 

 Area pexata, 147. 



transversa, 148. 

 Arion fuscus, 451. 



Ascidia, 23. 



amphora, 23. 



callosa, 26. 



carnea, 25. 



geoinetrica, 26. 



hirsuta, 20. 



Manhattensis, 25. 



ocellata, 24. 



psammopliora, 24. 



rugosa, 20. 



rustica, 23. 



tenella, 24. 

 Astarte Banksii, 125. 



castanea, 117. 



crebricostata, 126. 



elliptica, 124. 



lactea, 122. 



Portlandica, 127. 



quadrans, 123. 



semisulcata, 121. 



sulcata, 119. 

 Auricula bideiitata, 466. 



denticulcta, 463. 



B. 



Bela cancellata, 355. 



decussata, 354. 



harpularia, 352. 



pleurotomaria, 355. 



turricula, 351. 



violacea, 353. 

 Bittium Greenii, .322. 



nigrum, 321. 

 Boltenia Burkhardti, 16. 



clavata, 14. 



microcosmus, 16. 



reniformis, 14. 



rubra, 15. 

 Botryllus Schlosseri, 3. 



stellatus, 3. 

 Buccinum ciliatum, 368. 



cinereum, 370. 



Donovani, 369. 



lunatum, 359. 



