8 



Chart No. Page. 



91. Pontogenia ine'rmis 309 



92. Batea secunda 310 



93. Gammarus annulatus 311 



94. Elasmopus lsevis 312 



95. Autonoe smithi 313 



96. Ptilocheirus pinguis 314 



97. Amphithoe rubricata 315 



98. Jassa marmorata 316 



99. Ericthonius minax 317 



100. Corophium cylindricum 318 



101. Unciola irrorata 319 



102 . Caprellidae sp 320 



103. Leptochelia savignyi 321 



104. Idothea baltica • 322 



105. Idothea phosphorea 323 



106. Erichsonella filiformis 324 



107. Crago septemspinosus 325 



108. Homarus americanus 326 



109. Pagurus pollicaris 327 



no. Pagurus acadianus 328 



in. Pagurus longicarpus 329 



112. Pagurus annulipes 330 



113. Pelia mutica 331 



114. Eibinia emarginata 332 



115. Cancer irroratus 333 



116. Cancer borealis 334 



117. Ovalipes ocellatus 335 



118. Neopanope texana sayi 336 



119. Pinnotheres maculatus 337 



120. Tanystylum orbiculare 338 



121. Anoplodactylus lentus 339 



122. Ostrea virginica 340 



123. Anomia simplex 341 



124. Anomia aculeata 342 



125. Pecten magellanicus 343 



126. Pecten gibbus borealis 344 



127. Mytilus edulis 345 



128. Modiolus modiolus 346 



129. Modiolaria nigra 347 



130. Crenella glandula 348 



131. Area ponderosa 349 



132 . Area transversa 350 



133. Area campechiensis pexata 351 



134. Nucula proxima 352 



135. Yoldia limatula 353 



136. Solemya velum 354 



137. Venericardia borealis 355 



138. Astarte undata 356 



139. Astarte castanea 357 



140. Crassinella mactracea 358 



141. Divaricella quadrisulcata 359 



142. Cardium pinnulatum 360 



Chart 

 43- 



44. 



45- 



46. 



47- 



48. 



49- 

 5°- 

 5i- 

 52- 

 S3- 

 54- 

 55- 

 56. 

 57- 

 58- 

 59- 

 60. 

 61. 

 62. 

 63- 

 64. 

 65- 

 66. 

 67. 

 68. 

 69. 

 70. 



7 1 - 



72. 



73- 

 74- 



75- 

 76. 



77- 



No. Page. 



Lsevicardium mortoni 361 



Cyclas islandica 362 



Venus mercenaria 363 



Callocardia morrhuana 364 



Petricola pholadiformis 365 



Tagelus gibbus 366 



Tellina tenera 367 



Macoma tenta 368 



Ensis directus 369 



Cumingia tellinoides 370 



Spisula solidissima 371 



Mulinia lateralis 372 



Thracia conradi 373 



Cochlodesma leanum 374 



Lyonsia hyalina 375 



Clidiophora gouldiana 376 



Corbula contracta 377 



Mya arenaria 378 



Chaetopleura apiculata 379 



Tornatina canaliculata 380 



Cylichnella oryza 381 



Busycon canaliculatum 382 



Busycon carica 383 



Buccinum undatum * . . 384 



Tritia trivittata 385 



Ilyanassa obsoleta 386 



Anachis avara : 387 



Astyris lunata 388 



Eupleura caudata 389 



Urosalpinx cinereus 390 



Eulima conoidea 391 



Turbonilla sp 392 



Seila terebralis 393 



Cerithiopsis emersonii 394 



Bittium alternatum 395 



Caecum cooperi 396 



Vermicularia spirata 397 



Littorina litorea 398 



Lacuna puteola 399 



Crucibulum striatum 400 



Crepidula fornicata 401 



Crepidula convexa 402 



Crepidula plana 403 



Polynices duplicata 404 



Polynices heros 405 



Polynices triseriata 406 



Loligo pealii 407 



Molgula arenata and Eugyra glutinans . 408 



Molgula manhattensis 409 



Styela partita 410 



Perophora viridis 411 



Didemnum lutarium 412 



