146 A renicolidae 



DISTKIBUTION. It is remarkable that Arenicola branchialis has 

 not been recorded from any point on the shores of the North Sea. 1 

 The species is known from the following British localities North and 

 South Devon, Cornwall, the south-west of the Isle of Man, Millport, 

 Port Appin (Loch Linnhe), Loch Maddy 2 (North Uist), Galway, 

 Mayo, 3 Valencia, Port Stewart 3 (Londonderry), as well as from 

 Jersey and Guernsey. It has been recorded from several points on 

 the north coast of France, from Luc-sur-Mer to Roscoff, and also 

 from the Loire estuary and St. Jean de Luz. This species also occurs 

 at Santander, 4 and on the coast of Portugal at La Granja and the 

 Berlinga Islands, and the writer has recently recorded examples 

 from Tangier, Morocco. There is a specimen in the K. Zoologisches 

 Museum, Berlin, said to be from the South Atlantic, but no nearer 

 indication of the locality is given. 



In the Mediterranean, A. branchialis occurs in the Gulf of Lyons, 

 at Nice, Naples and Catania, 5 and at Triest and Lesina in the 

 Adriatic. It has been recorded from three stations Sevastopol, 

 Alupka and the Bay of Suchum on the northern shore of the Black 

 Sea, but it apparently does not occur on the western shore of this 

 sea in the vicinity of Varna. 6 



The distribution of A. branchialis may be summarised thus 

 this species is known from the Atlantic coasts of western and 

 north-western Europe and Morocco, from several stations in the 

 Mediterranean (south coast of France, Naples, Sicily), from the 

 Austrian coast of the Adriatic and the northern shore of the 

 Black Sea. 



On a portion of the Atlantic seaboard of western and north- 

 western Europe the two species A. branchialis and ecaudata are 

 found together, but the former does not occur so far north 7 as the 

 latter, and has not been found on the shores of the North Sea. But 

 A. branchialis has been found about 10 further south than 

 A. ecaudata, and extends into the Mediterranean, Adriatic and 



1 The station nearest to the North Sea from which this species has been 

 recorded is Luc-sur-Mer (Calvados). 



2 Specimens in the collection of Prof. W. C. M'Intosh, F.E.S. 



3 Specimens collected by Mr. E. Southern. 



4 Specimens sent to the writer by Prof. Kioja y Martin. 



6 Careful search has been made for this species in the neighbourhood of 

 Messina and Palermo, but without success. Prof. Viguier has informed me that 

 he has not seen any specimen of Arenicola on the coast of Algiers. 



fi From information kindly given by Prof. B. Kurzius, of Sofia. 



7 The most northern station from which A. branchialis has been obtained 

 is Loch Maddy, in North Uist, whereas A. ecaudata has been found as far 

 north as Trondhjem, 



