330 Canon A. M. Norman on British Amphipoda. 



separation. Moreover, Jules Bonnier has stated tliat there is 

 dimorphism in the males in tiiis genus (Jules Bonnier, " Le 

 dimorphisme des males chez Ics Crustaces Amphipodes," 

 Comptes rendus Acad. 8ci., Dec. 22, 1890). 



50. Bathyporeia norvec/ica, G. O. Sars. 



1862. Bnthy2}oreia pilosa, Bate & Westvvood, (1) vol. i. p. 304 (partly 

 at auy rate). 

 ? 1876. Bathyporeia pilosa, Boeck, (138) p. 209, pi. vii. fig. 3. 

 1891. Buthypureia norvegica, G. 0. Sars, (142) p. 128, pi. xliii. 



For remarks on Bate's specimens of B. pilosa see Walker, 

 Ann. & Mag. Nat. Hist. ser. 6, vol. xv. p. 470. It is a 

 question whether Bate's name Guilliamsonii [Thersites 

 Guilliamsonii^ Bate, Ann. & Mag. Nat. Hist. ser. 2, vol. xix. 

 p. 146) ought not to be used for this species. Sars applies 

 the name Bathyporeia pilosa^ Lindstrotn, to a Baltic form not 

 yet found in our seas. 



Hah. Apparently the commonest form in Britain. Shet- 

 land ; Isle of Cumbrae; and Guernsey {A. Al. N.) ; Banff 

 [T. Edward) ; Aberdeen [R. Dawson) ; AVhitburn, Co. Dur- 

 ham (G. S. Brady) ; Firth of Forth (T. 8.): Mus. Nor. 

 North Wales and Isle of Man {A. 0. W.) ; 70-80 miles off 

 Spurm Head (T. S.) ; Jersey (Chevreux). 



D'istiib. Ognebuct, off Ja^deren, south coast of Norway 

 (G. 0. Sars) ; Le (vroisic, Western France [Chevreux). 



51. Bathyporeia pelagica^ Bate. 



1862. Bathyporeia pelagica, Bate & Westwood, (1) vol. i. p. 309, J. 

 1875. Bathyporeia pilosa, Stebbing', " On the Genus Bathyporeia^^' Ann. 



& Mag. Nat. Hist. ser. 4, vol. xv. p. 74, pi. iii.* 

 1877. Bathyporeia tenuipes, Meinevt, " Crust. Isop. Amphip. et Decap. 



Danise," iS^aturhist. Tidsskr., 3 Itekkes, vol. xi. p. 101. 

 1891. Bathypioreia pelayica, Sars, (142) p. 129, pi. xliv. fig. 1. 



Hah. Shetland and Isle of Cumbrae {A. M. N.) ; Banfif 

 (T. Edicard^ ; Aberdeen (/?. Haivson) ; 25 miles off May 

 Island, Firth of Forth (Murray) ; Firth of Forth {T. S.) ; 

 ' Porcupine,' 1869, Stat. 18, west of Clew Bay, Ireland, 

 183 fathoms: AIus. JSnr. 70-80 miles off Spurm Head 

 (T. S.). Isle of Man; Noith Wales; Guernsey [A. 0. IF.); 

 Jersey [Sinel d) Ilornell). St. Andrews (APIntosh). 



Distrih. A^ itli the preceding at Ognebuct, off Jtederen, 

 South Norway, and Lofoten Islands {Sars) ; Tromso and 

 Vardo, Finmiirk [Schneider) ',-^we^ex\ (tide /Sars) ; Denmark 

 {^Meinert) ; West France {(Jhevrevx). 



* Beforrcd to by Sars, but fig. 1 appears to be D. jiorveyica^ Sars, while 

 the male is B. pelayica. 



