1182 THE VOYAGE OF H.M.S. CHALLENGER. 



dilated at the upper part ; the outer ramus is much shorter than the inner, but the 

 number of joints seems to be the same, fourteen, in both. 



Uropods. — The peduncles of the first pair a little longer than the outer ramus, with 

 about five spines on each margin, and a large one at the lower apex ; the outer ramus 

 long and slender, with long spines, singly or in pairs, at five points of the inner margin, 

 and a group of four or five at the apex ; the broader inner ramus is probably longer, but 

 it is broken ; the fragment has five long spines on the inner margin, and three nearer the 

 outer margin, at the top of which it has three little spines ; the second pair are shorter 

 than the first, the peduncles a little longer than the rami, which are subecmal,,with a few 

 strong marginal sjtines, and a group on the rounded apex, of which one is curved ; 

 the peduncles of the third pair almost broader than long, nearly concealed by the telson, 

 beneath which their inner edges meet, projecting much beyond the rami ; the outer 

 ramus longer than the peduncle, with an apical group of long and very slender spines ; 

 the inner ramus oval, less than half the length of the outer, with two spines at, and one 

 a little above, the apex. 



The Telson rather broader than long, very little narrowed distally, the distal margin 

 being for the most part convex, with the angled apex of each lateral margin not produced 

 quite so far as the centre of the convexity. 



Length. — The specimen, in the position figured, measured, from the rostrum to the 

 extremity of the uropods, nearly thirteen-twentieths of an inch. 



Locality.— Station 168, off New Zealand, July 8, 1874 ; lat. 40° 28' S., long. 177° 43' 

 E. ; depth, 1100 fathoms; bottom, blue mud; bottom temperature, 40°. One specimen, 

 female. 



Remark. — The specific name is derived from the Greek f3a6vir\6o<;, going deep in the 

 water. 



Family Dulichii dje. 



In 1849 Dana established the Dulichidse as sixth family of the Gammaracea, 

 containing the single genus Dulichia, Kr0yer; in 1852 he made it the first family of 

 the Gammaridea (see Note on Dana, 1852, p. 260). In 1857 Spence Bate established 

 the Dyopedidse as " Group B. Aberrantia. Family VIII." of the Gammarina (see Note 

 on Spence Bate, 1857, p. 294); in the same year he altered the name Dyopedidae into 

 Dulichiadse, which appears as Dulichidse in his British Museum Catalogue, and as 

 DulichiidEe in the British Sessile-eyed Crustacea. In 1859 Bruzelius accepted the 

 Dulichidse as the first family of the Gammaridea, adding to it the new genus Lwtmato- 

 philus. The family was also accepted by Goes in 1865, and in the same year Lilljeborg, 

 in one of the tables to page 18 of his paper on the Lysianassa magellanica, thus defines 



