] 84 CORBULIDiE. 



gregarious, m the lower part of the lamiiiarian zone, espe- 

 cially when the bottom is mud or muddy sand. It is 

 frequent in the coralline zone, and ranges even into the 

 region of the deep-sea corals. The greatest depths at 

 which it has been taken alive in our seas are sixty fathoms, 

 twelve miles from shore, off Cape Clear, by Mr. M 'Andrew, 

 and eighty fathoms, ten miles from the west coast of Zetland. 

 It is distributed very generally around the British coasts. 

 A few localities may be specified as examples of its range : 

 Guernsey (S. H.) ; fifteen miles from shore off the coast of 

 Devon, in sand (M'Andrew and E. F.) ; in ten fathoms off 

 the mouth of the Ex (M'Andrew and E. F.) ; Torquay 

 (S. H.) ; West Bay of Portland, in fifteen fathoms, and 

 Weymouth in seven fathoms ; off the Thames (Lieut. 

 Thomas, R.N.); Norfolk Coast (Capt. Stanley, R.N.) ; 

 Scarborough (Bean) ; Northumberland (Alder) ; South 

 Wales, at Oxwich and Fishguard (Jefl^i-eys) ; in twelve 

 fathoms, Anglesey (M'Andrew and E. F.); in fifteen 

 fathoms, Laxey Bay, Isle of Man (E. F.) ; on each side of 

 the Irish Coast, but not generally distributed (W. Thomp- 

 son) ; Dublin Bay, Bantry, Youghal (Humphreys and 

 Jeff, cab.) ; Frith of Clyde and Gairloch (Smith and 

 E. F,) ; in from fifteen to twenty fathoms, Oban, Mull, Src, 

 abundant (M'Andrew and E. F.) ; Loch Kishon, Loch 

 Alsh, Loch Torridon, Loch Shieldaig (Jeffreys and Bar- 

 lee) ; Frith of Forth (E. F.) ; " On hard ground in rather 

 deep water, Aberdeenshire" (M'Gillivray) ; Orkneys, in 

 four to fifty fathoms (Lieut. Thomas, R.N.) ; in six 

 fathoms, Balta Sound, Unst (M'Andrew.)* 



Corbula cfilha is distributed throughout the European 

 seas. In the Mediterranean it has been taken ranging 



* In citing localities for a common species such as this Curhida, we omit 

 instances alread}- published, unless interesting or important. 



