184 CORBULIDiE. 



gTegarious, m the lower part of the laminarian 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 

 wdiich 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 (Oapt. Stanley, R.N.) ; 

 Scarborough (Bean) ; Northumberland (Alder) ; South 

 AVales, at Oxwich and Fishguard (Jeffreys) ; 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, JNIull, &c., 

 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.)* 



Corhula gihha is distributed throughout the European 

 seas. In the Mediterranean it has been taken ranging 



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

 instances already published, unless interesting or important. 



