344 Mr. E. Duprej on Jersey Freshwater and Land Shells. 

 Cephalopoda. 



Loligo vulgaris, Lara. Pens only. 



Sepiola Roncleletii, Leach. 



Sepia officinalis, L. Shells only. 



elegans, De Blaiuville. Shells only and broken. 



hiserialis, De Montfort. Imperfect sheila. 



Octopus vulgaris. Lam. Common. At La Rocque the heaps of 

 empty shells around the dens of the Octopus are for the greater 

 part composed of Pectunculus open but entire. In stony ground 

 their hiding-places are often indicated by " debris" of the common 

 green crab, on which they appear to feed. 



FRESHWATER SHELLS. 



CONCTIIFERA. 

 Pisidium fontinale, Drap. 



pusillinn, Gmelin. 



niiidum, Jenyns. 



Gastropoda. 



rionorhis lineatas, Walker. 



nautileus, L. 



alhus, Miill. 



spiroriis, MUll. 



Physa hypnorum, L. 



Limnea peregra, Miill. 



tnincatula, Miill, 



■ glabra, Miill. 



, var. elongata. Apex more blunt than in the typical 



form ; living together. 



Ancylus fiiiviatilis, Miill. More than once I have found young 

 specimens of this slow mollusk adhering to an active flying 

 water-beetle, the AcHius sulcatus. Thus carried from one pond 

 to another, it can be rapidly distributed throughout the country. 



LAND SHELLS. 



Avion ater, L. Zonites cellarius, Miill. 



hortensis, Fer. alliarius, Miill. 



fiavus, Miill. nitidulus, Drap. 



Limax marginatus, Drap. radiattdus. Alder. 



fiavus, L. nitidns, Miill. 



agrestis, L. crystallinns, Miill. 



. maximus, L. fulvus, Miill. 



Snceinea putris, L. Helix acideata, Miill. 



Vitrinapellncida, Miill. r/sp^rsr/, Miill. 



