INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 483 

 Annelids. 



Page. 



Nereis limbata 318 



Autolytus cornutus 397 



Sabellaria vulgaris 321 



Nicolea simplex 321 



Poly cirrus exiniius 320 



Page. 



Potamilla oculifera 322 



Sabella microphthalma 323 



Pabricia Leidyi 323 



Serpula dianthus 322 



Spirorbis, sp . . . „ 323 



Turbellarians. 



Page. 



Monocelis agilis ' 325 



Polinia glutinosa 324 



Nemertes socialis . 



Nematodes. 



Pontonema marinum, 



Page. 

 325 



P. vacillatuin 



Page. 

 324 



Page. 

 326 



MOLLUSCA. 



Gastropods. 



Page. 



Bela plicata 383 



Ilyauassa obsoleta 468 



Tritia trivittata 354 



Urosalpinx cinerea 306 



Astyris lunata . • 306 



Anachis avara 306 



Eissoa aculeus 306 



Skenea planorbis 383 



Littorina rudis 305 



Page. 



L. palliata 305 



Odostoiniabisuturalis ...... 307 



Bittium nigrum 305 



Cerithiopsis Greenii 383 



Triforis nigrocinetus 305 



Alexia myosotis 383 



Melampus bidentatus 469 



iEolidia pilata 383 



Lamellibranclis. 



Page. 



Teredo navalis 482 



Argina pexata 309 



Mytilus edulis 307 



Page. . 



Modiola plicatula 307 



Anomia glabra 311 



Ostrrea Virginiana 310 



Ascidians. 



Page. 



Molgula Manhattensis 311 



'Cynthia partita 311 



Botryllus Gouldii . 



Page. 

 389 



Bryozoa. 



Page. 



Vesicularia dichotoma 389 



Escharella variabilis 312 



Page. 



Bugula turrita 311 



Pedicellina Americana 405 



