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 tellinellay Lucina 

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

 specimen of Acmaa 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. MuRiciDiB. 



Murex erinaceus. 



Fusus Islandicus, Chemnitz. 



Fam. BucciNiDiB. 



Buccinum undatum. 

 Nassa reticulata. 

 Purpura lapillus. 



Fam. CvPRiBiDiB. 

 Cypraa Europeea, Montagu. 



Fam. NATiciDiE. 



Natica Alderi, Forbes. 

 Velutina laevigata. 



Fam. Cbrithiadjs. 

 Aporrhais pes-pelicani. 



Fam. TuRRITBLLIDiB. 



Turntella communis, Risso. 

 Fam. LiTTORiNiDJt*. 



Littorina littorea. 



neritoides. 



rudis, Donovan. 



tenebrusa, Montagu. 



patula, Jeffreys. 



Lacuna pallidula. Da Costa. 



Lacuna vincta, Montagu. 

 Rissoa striata, Montagu. 



ulvsB. 



parva. 



parva, var. interrupta. 



Skenea planorbis. 



Fam. TuRBiNiDiB. 



Trochus cinerarius. 



ziziphinus. 



helicinus. 



Fam. FiSSURBLLIDiB. 



Emarginula reticulata, Sowerby. 



Fam. CALYPTRiBIDiB. 



Pileopsis Ilungaricus. 



Fam. PATELLIDiB. 



Patella vulgaris. 



pellucida. 



Ifevis. 



Acmsea virginea, MuUer, 

 testudinalis, MiiUer. 



Fam. CHiTONiDiB. 

 Chiton cinereus. 



Order Pulmonifbra. 

 Fam. Hblicidji. 

 Helix virgata. 



ericetorum. 



alliaria. 



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

 in determining the critical 8i)ecies of this family. 



