REPORT ON THE AMPHIPODA. 739 



Locality. — Station 120, off Pernambuco, September 9, 1873 ; lat. 8° 37' S., long. 

 34° 28' W.; depth, 675 fathoms ; bottom, red mud. One specimen. Trawled. 



Remark. — The specific name is given in honour of the late Axel Boeck, who instituted 

 the genus Andania, and who stands in the very foremost rank among the investigators 

 of the Amphipoda. 



Andania abyssorum, n. sp, (PI. XXXVII.). 



Lateral lobes of the head rather prominent ; first segment of the perseon as long as 

 the next two united, less overhanging than in the two preceding species ; the postero- 

 lateral angles of the first three pleon-segments not acute, a little rounded ; the following 

 segments abruptly shallower, the fourth almost concealed beneath the third, the sixth 

 longer than the fifth, with two longitudinal ridges running from the base of the segment 

 to either side of the base of the telsou. 



No Eyes ^Derceived. 



Upjyer Antennse. — Peduncle shorter than the flagellum, the first joint very stout, 

 scarcely longer than broad, longer than the two next joints united ; the flagellum 

 tapering, of four joints, the first as long as the other three together, rather longer than 

 the first joint of the peduncle, with a brush of cyhnders, and at the apex some 

 spinules and a long spine ; the narrow, slightly curved, secondary flagellum is not half 

 as long as the first joint of the primary, seemingly one-jointed, with a long subapical 

 spine. 



Loiver Antenna;. — First joint a little dilated ; gland-cone very small ; third joint 

 forming an angle with the fourth ; fourth rather longer than the fifth ; the tw^o together 

 longer than the slender six-jointed flagellum. 



Mandibles. — The cutting edge broad, almost straight, with a very minute denticle at 

 the top, but sharply upturned below, with some conspicuous though microscopic denticles; 

 on the inner surface near the lower angle, but connected by a groove with the upper, is a 

 small triangular secondary plate on the right mandible, and some distance behind this on 

 the outer surface there is a seta ; on the left mandible there is no secondary j)late, but 

 the seta is present, arising from a curved groove on the outer surface. 



Loioer Li]).- — The principal lobes apically narrow, with a small tuft of cilia or sctules 

 standing out at about the centre of the apical margin ; a band of long cilia appears to 

 cross the surface as in the other two species. 



First Maxillw. — The inner plate carrying seven stout strongly plumose seta3 along 

 the inner margin ; the truncate distal margin of the outer plate armed w^ith nine 

 denticulate spines, rising amidst very long and spine-like cilia ; the first joint of the palp 

 not very short, the second reaching as far as the outer plate, its outer margin convex, its 



