INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 377 



is freqiieutly found attacliecl to the shells of oysters, aud to other solid 

 objects. 



List of species commonly found on the muddy shores of the hays and sounds. 



ARTICULATA. 



Crustacea. 



Gelasinius pugnax 367 



Sesarma reticulata 367 



Pinnixa cylindrica 367 



Pinnotheres ostreum 367 



Cancer irroratus 367 



Panopeus depressus 367 



P. Sayi 367 



Callinectes hastatus 367 



Carcinus granulatus 367 



Libinia canaliculata 368 



L. dubia 368 



Eupagurus longicarpus .... 368 



E. pollicaris 368 



Callianassa Stimpsoni 369 



Gebia affinis 368 



Yirbius zostericola 369 



Crangon vulgaris ... 369 



Pali^emonetes vulgaris^ 369 



Mysis stenolepis 



M. Americana 



Squilla empusa 



Gammarus mucronatus 



Amphithoe valida 



A. compta , 



A. longimana . 



Unciola irrorata 



Corophium cylindricnm 



Idotea irrorata 



Erichsonia atteuuata 



Epelys trilobus 



E. monfcosus 



Limnoria lignorum. 



Limulus Polyphemus 



Kumerous small Entomos- 

 traca, of many genera. 



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Annelids J {Chcetopods.) 



Page. 



Nereis virens 371 



N. limbata 371 



Diopatra cuprea 371 



Lumbriconereis opalina 371 



L. tenuis 371 



Maldane elongata 371 



Xotomastus luridus 371 



K. flliformis 371 



Pao-c. 



Cistenides Gouldii 371 



Amphitrite ornata 320 



Khynchobolus Americanus. 371 



E. dibranchiatus 371 



Cirratulus grandis 371 



Polycirrus eximius 371 



Gh?etobranchus sanguineus. 371 



MOLLTJSCA. 



Gastropods. 

 Page. ' 



liyanassa obsoleta „ . 371 



Kassa vibex 371 



Eupleura caudata 371 



Urosalpinx cinerea 372 



Astyris lunata ...... ...... 372 



Crepidula convexa 371 



Littorina irrorata — 



Lacuna vincta 



Bittium nigrum 



Triforis nigrocinctus 

 Bulla solitaria 



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