REPORT ON THE AMPHIPODA. 1327 



Second Maxillae. — On the distal curve of the widest part of the plate, just before 

 its abrupt contraction, there are four little spines. In the male this part of the margin 

 was broken, and probably for that reason no such spines were seen. 



Mqxillipeds. — The lateral margins of the distal triangle of the inner plate have each 

 three instead of two small spaced spines. 



First Gnathojiods. — An elongate outward projecting tooth representing the side- 

 plate. First joint about as long as the next four together, with eight unecmal teeth 

 along the front margin, one at the apex of the hind margin, and another a little higher 

 up ; a long tooth at the hinder apex of the second joint, and a small one higher up ; 

 the third joint also nearly as in the male ; one front edge of the wrist cut into five 

 large teeth, its triangular process not quite reaching to the extremity of the hand, the 

 margin facing the hand cut into nine teeth, the hind margin into four, the apical making 

 a fourteenth tooth ; the hand with the hind margin cut into eight teeth, besides one on 

 the palmar margin ; of the two front margins one has seven, the other eight teeth, 

 besides the large apical tooth of each ; the finger as in the male. 



Second Gnathopods only differing from those of the male specimen in trifling 

 details, as is also the case with the first gnathopods. 



Perieopods of the first, second, third, and fourth pairs not materially differing 

 in appearance from those of the male specimen, not exhibiting the striking expansion 

 of the distal end of the fifth joint figured by von Willemoes Suhm, and of which he 

 says, 1 — " the enlarged distal terminations of the limbs and of the antennas are not, like 

 the remaining part of the appendages, transparent, but are of a milk-white colour, 

 produced, I bebeve, by glands in their interior analogous to the glands in the enlarged 

 claw of Phronima." It is possible, I think, that, whUe the specimen was fresh, the 

 opacity of the termination of the fifth joint, contrasted with the transparency of the rest, 

 produced an optical impression of expansion beyond the reality, but it is even more 

 probable that, during the years the specimen has been in spirit, some of the actual 

 expansion has been lost by a discharge of the contents of the gland-cells. 



Fifth Perseopods similar to those of the male specimen except in regard to the fifth 

 joint, which, except at the narrow neck and the narrow place of insertion for the finger, 

 is strongly swollen and closely packed with gland-cells ; it widens gradually for about 

 two-thirds of the length, and then narrows very slightly to the distal end, which forms 

 a smooth-edged palm, against which the small bent finger is capable of impinging, 

 though it cannot reach its extremity ; the hinder margin is smoothly convex, the front 

 is straight and almost entirely smooth, though here and there bearing very slight traces 

 of a lost dentation ; the lateral setae are as in the male. 



Uropods. — The first pair scarcely over six-tenths of an inch long from the base 

 to the extremity of the coalesced inner branch, seven-tenths of an inch to the extremity 



1 Loc. cit., p. 630. 



