50 LITTORINID.E. 



i 



t 



Leach : said to have been found at Dunbar by Laskey 

 — an authority not to be relied on, seeing that Tellina 

 carnaria, Amphidesma nitens, Siliquaria bidens, and 

 several other exotic shells are enumerated by him from 

 that locality ; Dunbar also (Bingham, fide Brown) ; 

 Cork (Leach) . It is a common Mediterranean shell. 



2. R.disjuncta (T. disjunctus,^/Lont.). West-Indian. 



3. R. Montagui, Payr. = R. Binghami, Brown : St. 

 Fergus's Bay, Peterhead (Bingham, fide Brown) . Medi- 

 terranean and Adriatic. 



4. R. glabrata, v. Muhlf. = R. punctulum, Phil. = R. ni- 

 tida, Brusina : Shetland and Skye (J. Gr. J., in conse- 

 quence of sifting shell- sand through sieves which were 

 not properly cleaned after I had used them on the Pied- 

 montese coast). Mediterranean and Adriatic. 



5. R. cimex {Turbo, L.) = T. calathiscus, Mont. = 

 Alvania Europe a, A. mamillata, and A. Fremingvillea, 

 Risso=i?. cancellata, Desm.=i?. granulata, Phil. : Isle 

 of Jura (Laskey); Cumbrae (J. Smith). Mediterra- 

 nean and Adriatic. 



In the same category may be placed several species of 

 Rissoina, a genus instituted by D'Orbigny to receive 

 certain shells allied to Rissoa, which have the lower part 

 of the mouth slightly channelled, and the operculum 

 furnished underneath with a process like that of Neri- 

 tina. There is no British species of Rissoina. Those 

 erroneously recorded as such are : — 



'1. Rissoina Bruguieri, Payr.: Scarborough (Bean). 

 Loire-Inferieure (Cailliaud) ; north coast of Spain 

 (M f Andrew) ; Adriatic (Heller) ; Mediterranean (Pay- 

 raudeau and others) ; iEgean (Spratt) . 



2. Rissoina Bryerea {Turbo Bryereus, Mont.) = T. 

 costatus, Don.: Margate (Donovan); Weymouth (Bryer); 

 Dunbar (Laskey) ; Cornwall, Portmarnock, and Firth of 



