472 FISSURELLID^. 



of Portland (M'Andrew and E. F.) ; Exmouth (Clark) ; 

 Falmouth (Cocks) ; bays, near Swansea and Torbay 

 (Jeffreys) ; in twelve fathoms Milford Haven, and in 

 twenty-five fathoms Anglesea (M'Andrew and E. F.) ; 

 around the Isle of Man in from twelve to twenty-five 

 fathoms (E. F.) ; Clyde (Smith) ; Loch Fyne, Oban, and 

 Stornoway (Barlee) ; east on the shores of Sanda and 

 Stronza, Orkney (Thomas). Among Irish localities may 

 be mentioned Birterbuy Bay (Barlee) ; Clew Bay, in 

 from three to ten fathoms (Ball, Thompson, and E. F.) ; 

 Bantry (Jeffreys) ; and in fifty fathoms, but dead, on the 

 Nymph Bank (M'Andrew). 



It does not appear to range northwards in Britain ; 

 southwards it extends to the Mediterranean. As a fossil 

 it dates with certainty from the epoch of the coralline 

 crag. 



SPURIOUS. 

 F, NUBECULA, Linnaeus. 



Patella mibecula, Linn. Syst. Nat. ed. 12, p. 1'262 (from type). — Turt. Couch. 

 Diction, p. 142, f. 81 (from type). — Dillw. Recent Shells, 

 vol. ii. p. lOGl. 

 Fissurella rosea, Sowerby, Conch. 111. Fissur. f. 8 ? — Philippi, Moll. Sicil. 

 vol. ii. p. 91. 

 „ nubecula, Fleming, Brit. Animals, p. 365. 

 „ nimhosa, Phimppi, Moll. Sicil. vol. i. p. 117. 



A Mediterranean shell ; introduced by Turton as s&id to have 

 been dredged off the Cornish coast. Whether the F. nubecula of 

 Ilacgillivray (Moll. Aherd. p. 345, from which Brit. JIarine 

 Conch, p. 251) is identical we cannot say (not having seen his 

 sp>ecimen), hut the fifteen broad ribs ascribed to it, are neither 

 present in Turton's example nor in those sent us by Dr. Philippi. 



