REPORT ON THE AMPHIPODA. 629 



in the preceding pair, armed with three spines along the proximal part of the upper 

 border ; in the third pair the peduncle is short, the rami slenderly lanceolate, the outer 

 and longer branch terminating with a nail, having fiv-e spines along one of its margins, on 

 the other two spines and one or two setse near the nail ; the inner branch with spines 

 and setse along one margin, and some spines near to the other margin. 



Telson. — Cleft nearly to the base, evenly narrowing to the apex, each half of which 

 is emarginate, the inner part more produced than the outer, and carrying a spine and a 

 feathered cUium in the hollow ; three spines are placed at intervals on the surface of the 

 telson near each outer margin. 



Length. — The specimen figured measured, without the antennae, about two-fifths of an 

 inch. 



Locality. — Station 149, Accessible Bay, Kerguelen Island, January 9, 1874; depth, 

 20 fathoms ; bottom, volcanic mud. Dredged. 



Station 149h, off Cumberland Bay, Kerguelen Island, January 29, 1874 ; depth, 

 127 fathoms ; bottom, volcanic mud. Several specimens. Dredged. 



Remarks. — Mr. Miers, in the Zoology of Kerguelen Island, p. 9, says : — 



" In the form of the antero-lateral angles of the cephalon, and of the postero-lateral 

 angles of the third segment of the pleon, this species to some extent resembles (1) 

 Hippoviedon holholli, Kroyer, as described by Boeck, as well as (2) H. abysii [abyssi]. 

 Goes, and (3) Anonyx pumilus, Lilljeborg, — all from the Northern Seas. But it differs 

 from these species in having the inner lobes of the maxillipedes proportionately much 

 longer ; and in this respect it approaches more nearly to the type of structure exhibited 

 in Orcliomene, Boeck. The eyes also, which are well marked in the species just referred 

 to, are not visible in any of the specimens of A. kergueleni. 



" On account of the subcheliform character of the first pair of the gnathopoda, and 

 the divided telson, I refer this species to the genus Anonyx, as defined by Mr. C. Spence 

 Bate, instead of retaining it in Lysianassa, where I placed it at first. I cannot refer it 

 with certainty to any one of the numerous genera recently established by Boeck in his 

 systematic arrangement of the Scandinavian and Arctic Amphipoda ; I believe, indeed, 

 that it will be found necessary to introduce important modifications of the systematic 

 arrangement and generic characters proposed by this author into any general revision of 

 this difficult order, which may hereafter be undertaken, based upon the comparison of 

 species from foreign as well as the European and Arctic Seas." 



A specimen, however, of Hippomedon ahyssi (Goes), from the " Valorous " Expedition, 

 lent me by Canon Norman, shows both the inner and outer lobes of the maxillipeds 

 corresponding in their proportions with those of the present species, which I have 

 therefore transferred to the genus Hippoviedon, where Mr. Miers himself seems to have 

 had some disposition to place it. 



