EEPORT ON THE AMPHIPODA. 625 



Locality. — Station 149h, off Cumberland Bay, Kerguelen, January 29, 1874 ; depth, 

 127 fattoms ; bottom, volcanic mud. Dredged. 



A minute specimen, not a tenth of an inch long, from the same locality, is probably the 

 young of this species. Two other specimens were taken at Kerguelen, at a depth not 

 mentioned. 



Remarks. — The specific name alludes to the bearded appearance of the wrist and hand 

 in the first gnathopods. 



In the young specimen there are clear traces of eyes, the mandibles are well developed, 

 but with few spines on the palp ; on the palp of the first maxillje there are only four 

 teeth ; on the inner plate of the maxillipeds the three apical teeth are well developed, 

 but the outer plate has on the inner margin but one tooth, which is that near the apex, 

 and two on the apical margin ; the branchial vesicles are narrow ; the fingers of the 

 perseopods comparatively more developed than in the adult. 



Genus Hippomedon, A. Boeck, 1870. 



For Boeck's definition of this genus, see Note on Boeck, 1870 (p. 397). To embrace 

 the new species here assigned to the genus, the first maxillee should be described as 

 having two or more setae on the inner plate, and the epithet hroad should be omitted 

 from the account of the maxillipeds. The description of the lower antennae as having 

 the fifth joint much longer than the fourth must be cancelled, being in fact contrary to 

 the descriptions which Boeck himself gives of the only two species which he assigns to 

 the genus. 



Hippomedon kergueleni (Miers) (PI. VIIL). 



1875. Lysianassa kergueleni, Miers, Ann. and Mag. Nat. Hist., vol. xvi p. 74. 

 1879. Ano7iyx kergueleni, Miers, Transit of Venus Exped., Zoology of Kerguelen Island, 



Crustacea, pp. 8, 9, pi. si. fig. 4. 



Lateral lobe of the head acute, produced some distance along the first joint of the 

 upper antennae. Third segment of the pleon with the postero-lateral angles much 

 prolonged and curved upwards as narrow pointed lobes. Fourth pleon-segment with a 

 dorsal depression. There are some small scattered hairs upon the back. 



Eyes not discerned. 



Upj)er Antenna^.— The first joint long, stout, cylindrical, with a row of minute cilia 

 near the base, and some larger feathered ones on the opposite margin, distally, such being 

 scattered also on the two following joints, which are very short, narrowing distally ; fla- 

 gellum of fourteen joints, the first as long as the four following combined, carrying the usual 



{zooL. CHALL. Exr. — PART Lxvii. — 1887.) Xxx 79 



