334 Canon A. M. Norman on British Amphipoda. 



58. Phoxocephalus IloJhdU'i (Krojer). 



1842. Phoxus Holbolli, Kroyer, Naturhist. Tidsskr. vol. iv. p. 151 ; 



2 Rfekke-s vol. i. 1844, p. 551. 

 185;}. Pho.vus Kroi/eri, Stimpson, Marine Invert. Grand Manan, p. 58. 

 18lU. Pho.vjts HoibiilU, Bate & Westwood, (1) vol. i. p. 143. 

 1870. PhoxHs Holbolli, Roeck, (138) p. 214, pi. vii. fig. 5. 

 1891. Phoxocephalus HoibiilU, G. 0. Sars, (142) p. 144, pi. xlix. 



Hah. Isle of Cumbrae {A. M. N.); BanfF, N.B. {T. Ed- 

 ward) : Mus. Nor. Firtli of Clyde and Firth of Forth [T. S.). 



Distrih. Greenland, 'Valorous,' 1875; Svolvjer, Lofoten 

 I.slands; Vadso and Bog Fiord, East Finmark [A. M. N.) ; 

 Casco Bay, N.E. America, 1873 [S. I. Smith, as "Phoxus 

 Krbyeri ") : Mus, Nor. Arctic Ocean generally. Rare in 

 the more southern parts of Norway {O. 0. Sars) ; West 

 Sweden {Goes); Denmark (^Meinert) ; west coast of France ? 

 {Chevreux ; but it is omitted in his most recent revised list). 



The setse on the anterior coxai are u.sually more numerous 

 than the four given by Bate and Westwood, usually 8-10. 

 In the specimen figured by Sars they are still more nume- 

 rous. When the mandible-palp is examined this species is 

 easily distinguished from Paraphoxus oculatuSy and this palp 

 can often be seen ])r(jected witiiout dissection. When that 

 character is not visible I find the best points by which to 

 recognize this species from Paraphoxus oculatus are the much 

 shorter nails of the anterior perseopods, the shorter and stouter 

 character of the three hinder perajopods, and the form of the 

 posterior lobe of the last peraeopod, which is truncated below, 



59. Phoxocephalus oculatus (G. 0. Sars). 



1880. Phoxu$ oculatus, G. 0. Sars, " Crust, et Pycnog. iu itin. 2 et 3 

 Exped. Norveg. inventa," Archiv for Mathem. og Naturvid. 1880, 

 p. 441. 



1885. Phoxus oculatus, G. 0. Sars, (104) p. 1-54, pi. xiii. figs. 4, 4 a-c. 



1891. Paraphoxus oculatus, G. O. Sars, (142) p. 149, pi. li. 



1893. Phoxocephalus oculatus, Delia Valle, ( 139) p. 740, pi. v. fig. 5, 

 pi. XXXV. figs. 19-38. 



Delia Valle figures only 4-6 setag on the coxae of the 

 gnathopods and anterior perseopods ; but in a specimen sent 

 to me by him and in others which I took myself at Naples 

 these setse are more numerous (6-10). His figure 28 of the 

 last uropods does not agree with the Neapolitan specimens 

 which 1 have examined, in which the inner branch is much 

 shorter (as in Sars's figure). This species comes very near 

 to, if it be not identical with, Phoxus macidatus^ Chevreux 

 (Bull. Soc. Zool. de France, vol. xii., Feb. 28, 1888), which 

 he has since called Paraphoxus maculatus ; the following 



