Mr. George Tate on the Fame Islands. 



237 



and Littorina, have been chiefly obtained from the shores of 

 Fosseland. This assemblage of shells consists of sixty-six species, 

 three of which are land-shells, and for the most part they belong 

 to what the late Professor Forbes designates European and Celtic 

 types, with a few Boreal forms. Murex erinaceus, which is a 

 southern shell, has been doubtfully recorded as a Northumber- 

 land species, as only two dead specimens had been found among 

 ballast ; but as several specimens, some of them living, have 

 occurred at the Fame Islands, there can now be no doubt of this 

 species being a native of our seas. Psammobia tellinella, Lucina 

 borealis, and Area tetragona are among the rarer species. One 

 specimen of Acmcea testudinalis has been found, — a species not 

 uncommon on the western coast, but which has not before been 

 seen in the Northumberland seas. 



MOLLUSCA. 



Class GASTEROPODA, Cuvier. 



Ord. Prosobranchiata, M.-Edw. 



Fam. Muricid^e. 



Murex erinaceus. 



Fusus Islandicus, Chemnitz. 



Fam. Buccinid,e. 



Buccinum undatum. 

 Nassa reticulata. 

 Purpura lapillus. 



Fam. Cypr/eid^;. 



Cyprsea Europsea, Montagu. 



Fam. Naticid^e. 

 Natica Alderi, Forbes. 

 Velutina laevigata. 



Fam. Cerithiad^e. 

 Aporrhais pes-pelicani. 



Fam. Turritellid^e. 

 Turritella communis, Risso. 



Fam. Littorinid^e *. 

 Littorina littorea. 



neritoides. 



rudis, Donovan. 



tenebrosa, Montagu. 



patula, Jeffreys. 



Lacuna pallidula, Da Costa. 



Lacuna vincta, Montagu. 

 Rissoa striata, Montagu. 



ulvae. 



parva. 



parva, var. interrupta. 



Skenea planorbis. 



Fam. Turbinid^e. 

 Trochus cinerarius. 



■ ziziphinus. 



helicinus. 



Fam. Fissurellid^e. 

 Emarginula reticulata, Sower by. 



Fam. Calyptr^id^b. 

 Pileopsis Hungai-icus. 



Fam. Patellid^e. 

 Patella vulgaris. 



pellucida. 



lsevis. 



Acmaea virginea, Mutter. 

 testudinalis, Mutter. 



Fam. Chitonid^e. 

 Chiton cinereus. 



Order Pulmonifera. 

 Fam. Helicid^e. 

 Helix virgata. 



ericetorum. 



alliaria. 



* To my friend Mr. Pickering, of London, I am indebted for assistance 

 in determining the critical species of this family. 



