346 Canon A. ]\f. Norman on British Amphipoda. 



t^eighhourhocd of these deep spots is the habitat of certain 

 Mollusca and other animals not found, or scarcely to be found, 

 elsewhere between our islands. Thus, Loch Fyne is the well- 

 known locality of the shells Cuspidaria costellata, Deshayes, 

 Cuspidaria ahhreviata, Forbes, Sivxdi Alvania subsoluto^ Kxa.d(?LS,, 

 var. ohyssicoJa, Forbes ; here, too, are found the Crustacea 

 N yctiphanes norvegica, Sars, and Euchceta norvegica, Boeck, in 

 the greatest profusion (two Crustacea to which the Loch Fyne 

 herrings seem to owe their large size and fine flavour), 

 BythocA/pris complanata, G. S. Brady, and other deep-water 

 forms not so restricted in their distribution. In the Sound of 

 Skye and neighbourhood are Poromya gramdata^ Nyst & 

 W estend., Cuspidaria abhreviata^ Forbes, sm^ costellata^ Desh., 

 Crypitodon femiginosus^YoxhQB^ Portlandia tenuis, Phil., Area 

 pectunculoides, Scacchi, &c. Of the inhabitants of the deep 

 hole between Cumbrae and Arran we know less, but Sir J. 

 Murray procured Nyctiphanes norvegica there in great abun- 

 dance. These northern deep-water forms probably made 

 their way to these localities at a geological period when the 

 British Islands were more submerged than they are now, and 

 the depths therefore were greater. It is remarkable that in 

 our times the depths of many of the Scotch lakes far exceed 

 the depth of any part of the sea at all near to our coasts. 



By the * Porcupine ' Exped. it was taken at Stat. 3, otf the 

 south-west of Ireland, in 722 fathoms, and at Stats. 74 and 88, 

 west of the Shetland Islands, in 203 and 290 fathoms : Mus, 

 Nor. 



IHstrih. ' Lightning,' 1868, Stats. 3 and 6, Faroe Channel, 

 in 229 and 510 fathoms; 'Knight Errant,' Faroe Channel, 

 Stat. 8, in 540 fathoms; 'Porcupine,' 1870, Stat. hQ>, near 

 the island Pantellaria, in the Mediterranean, 390 fathoms; 

 Varanger Fiord, E. Finmark, 125-150 fathoms; Rodberg, 

 Trondhjem Fiord, Norway, 250-300 fathoms, and Hardanger 

 Fiord, 150-180 fathoms (^. M. N.) : Mus. Nor. Greenland, 

 48-183 fathoms {H. J. Hansen) ; Arctic Ocean generally. 



I have received specimens under this name from Prof. S. I. 

 Smith, which were taken in the Bay of Fundy, N.E. America. 

 I am inclined, however, to think that they should be referred 

 to Hoploops robusta, G. O. Sars. They are the largest 

 examples 1 have seen, and in most points, such as the form of 

 the cephalon and of the third segment of the metasome, they 

 agree Avith Sars's species ; but the proportionate lengths of 

 the joints of the peduncles of the two pairs of antennas are 

 different. 



