[377] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 



is frequently found attached to the shells of oysters, and to other solid 

 objects. 



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



ARTICULATA. 



Crustacea. 



Page. 



Gelasimus puguax 367 



Sesarina reticulata 367 



Pinnixa cylindrica 367 



Pinnotheres ostreum . . 367 



Cancer irrorattis 367 



Panopeus depressus 367 



P. Sayi 367 



Callinectes hastatus 367 



Carcinus granulatus 367 



Libinia canaliculata 368 



L. dubia 368 



Eupagurus longicarpns . . ,. . 368 



E. pollicaris 368 



Callianassa Stimpspni 369 



Gebia affinis 368 



Virbius zostericola 369 



Crangon vulgads .... 369 



Pahvmonetes vulgaris 369 



Mysis stenolepis 



M. Americana 



Squilla empusa 



Gammarus rnucronatus .... 



Amphithoe valida 



A. compta 



A. longimana 



Unciola irrorata 



Corophium cylindricum 



Idotea irrorata 



Erichsonia attenuata 



Epelys trilobus 



E. montosus 



Limnoria lignorum 



Limulus Polyphemus 



Numerous small Entomos- 

 traca, of many genera. 



Page. 

 370 

 370 

 369 

 370 

 370 

 370 

 370 

 370 

 370 

 370 

 370 

 370 

 370 

 370 

 370 



Annelids, ( Chcetopods.) 

 Page. 



Nereis vireus 371 



N. limbata 371 



Diopatra cuprea 371 



Lumbriconereis opalina 371 



L. tenuis 371 



Maldane elongata 371 



Notomastus luridus 371 



N. filiformis 371 



Cisteriides Gouldii , 



Amphitrite ornata 



Ehynchobolus Americaims 



E. dibranchiatus 



Cirratulus grandis 



Polycirrus eximius 



Chretobranch us sanguiuens . 



Page. 

 371 

 320 

 371 

 371 

 371 

 371 

 371 



3IOLLTJSCA. 



Gastropods. 



Page. 



Ilyanassa obsoleta 371 



Nassa vibex 371 



Eupleura caudata 371 



Urosalpiux cinerea 372 



Astyris lunata , 372 



Crepidula convexa 371 



Page. 



Littorina irrorata , . 372 



Lacuna vincta 372 



Bittium iiigrum 372 



Triforis nigrocinctus 372 



Bulla solitaria . ... 371 



