[333] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 



39 



Page. I 



Astyris lunata 306 



Anacliis avara 306 



Odostomia producta , 307 



O. fasca 307 



O. bisuturalis 307 



O. trifida 307 



O. impressa , 307 



Eissoa aculeus , 306 



Skenea planorbis 383 



Littorina palliata 305 



L. rudis 305 



Lacuna vincta . 305 



Bittium Digram 



Cerithiopsis Greenii . 

 Triforis nigrocinctus . 

 Crepidula fornicata . . 



C. couvexa 



C. unguiforaris 



Acmsea testudinalis . 



Doris bifida 



Polycera Lessonii . . . 

 Doridella obscura . . . 

 , undetermined. 



Page. 

 305 

 383 

 305 

 553 

 553 

 553 

 307 

 307 

 400 

 307 



Lamellibranchs, ( Bivalves.) 



Page. 



Mya areuaria 309 



Saxieava arctica 309 



Kellia planulata 310 



Scapharca transversa 309 



Argina pexata 309 



My til us edulis 



Modiola plicatula . . 



M. modiolus , 



Anomia glabra 



Ostrrea Yirginiana 



Page. 

 307 

 307 

 309 

 311 

 310 



Ascidians. 



Molgula Manhatteusis 



Page. 

 311 



Cynthia partita 



Bryozoa, (or Polyzoa.) 



Page. 



Crisia eburnea 311 



Tubulipora flabellaris 405 



Alcyonidium ramosum 404 



Alcyonidium hirsutum 404 



A. liispidum 312 



Yesicularia gracilis 389 



Yesicularia cuscuta .... 404 



V. dichotoma 404 



Bugula turrita 311 



B. flabellata 



Membranipora pilosa . . 

 M. lineata , 



Escharella variabilis . . 

 Discopora coccmea(?) . . 

 Lepralia, sp 



Cellepora ramulosa 



Pedicellina Americana. 



Page. 

 311 



Page. 

 389 

 406 

 406 

 312 

 424 

 420 

 312 

 405 



RADIATA. 



jEchinoderms. 



Arbacia punctulata. 



Page. 

 326 



Asterias arenicola 



Page. 

 326 



