334 Canon A. M. Norman on British Amphipoda. 



58. Phoxocephalus HoJhoUi (Krojer). 



1842. Fhoxus HolboUi, Kroyer, Natiirliist. Tidsskr. vol. iv, p. 151 ; 



2 Rfekkes, vol. i. 1844, p. 551. 

 1853. Phoxus Kroyeri, Stimpson, Marine Invert. Grand Manan, p, 58. 

 1861. Phoxus Holholli, Bate & Westwood, (1) vol. i. p. 143. 

 1876. Phoxus Holholli, Boeck, (1.38) p. 214, pi. vii. fig. 6. 

 1891. Phoxocephalus Holbolli, G. O. Sars, (142) p. 144, pi. xlix. 



Hah. Isle of Cumbiae {A. M. iV.) ; Banff, N.B. {T. Ed- 

 xoard) : Mus. Nor. Firth of Clyde and Firth of Forth {T. S.). 



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

 Islands; Vadso and Bog Fiord, East Finmark {A. M. N.) ; 

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

 Kroyeri ") : 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? 

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



The setge on the anterior coxse are usually 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 oculatus, and this palp 

 can often be seen projected without 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 peraeopods, the shorter and stouter 

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

 posterior lobe of the last perseopod, which is truncated below. 



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



1880. Phoxus oculatus, G. 0. Sars, " Crust, et Pycnog. in itin. 2 et 3 

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

 p. 441. 



1885. Phoxus oculatus, G. 0. Sars, (104) p. 154, 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 setge on the coxge of the 

 gnathopods and anterior peraeopods ; but in a specimen sent 

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

 these set£e 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 maculatus, Chevreux 

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

 he has since called Paraphoxus maculutiis ; the following 



