INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 483 



Annelids, 



i^ereis limbata 318 



Autolytus corriutiis 397 



Sabellaria Yulgaris . « 321 



Nicolea simplex 321 



Poly cirrus eximius 320 



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Potamilla oculifera 322 



Sabella microphthalma 323 



Fabricia Leidyi 323 



Serpnla clianthus 322 



Spirorbis, sp . . . =. 323 





TnrheUarians. 







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Monocelis a2,ilis 



325 1 I^emertes socialis ...... 



.,.. 324 



Poliuia glutinosa 



.... 324 1 



Nematodes, 







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Pontonema marinum . . . 



- .. . 325 j P. yacillatum 



MOLLUSCA. 



.... 326 



Gastropods, 



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Bela plicata 383 



Ilyauassa obsoleta 468 



Tritia trivittata 354 



Urosalpinx cinerea 306 



Astyris lunata r. ... 306 



Anacliis avara 306 



Kissoa aculeus 306 



Skenea planorbis 383 



Littorina rudis 305 



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L. palliata 305 



Odostomiabisuturalis ...... 307 



Bittiiim nigrum 305 



Cerithiopsis Greenii 383 



Triforis nigrocinctus 305 



Alexia myosotis 383 



Melampus bidentatus 469 



^olidia pilata 383 



Lamellibranchs, 



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Teredo navalis 482 



Argina pexata 309 



Mytilus edulis 307 



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Modiola plicatula 307 



Anomia glabra 311 



Ostrsea Yirginiana 310 



Ascidians, 



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Molgula Manhattensis 311 



Cynthia partita 311 



Botryllus Gouldii . 



Bryozoa. 



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Yesicularia dichotoma 389 



Escbarella variabilis 312 



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 389 



Pa^e. 



Bugula turrita 311 



Pedicellina Americana 405 



