AMPHIPODA. 35 



except that the middle postero-dorsal tooth on the first and second pleon segments is 

 shorter, a character of little importance. 



FAM. LILLJEBORGIIDtE, Stebbing. 



LiLLJBBORGIA DUBIA. 

 Lillfeborgia dubia, Haswell. 



W.Q., 29 Aug., 1902, and 28 Nov., 1902, two specimens, both young, the largest 

 12 mm. 



FAM. PHOTID^, G. 0. Sars. 

 Haplocheira barbimana. 

 HaplocJieira hariimana, G. M. Thomson. 



Fairly abundant in W.Q., Oct. and Nov., 1902, especially at Hut Point; also at 

 Flagon Point, 23 Jan., 1902, and W.Q., 30 Sept., 1903. 



The appendage of the upper antennse, which was broken in the ' Challenger ' 

 specimen, is three-jointed, the first wider than, but subequal in length to, the second ; 

 the third minute, reaching almost to the end of the second joint of the flagellum. The 

 first urus segment has two small postero-dorsal teeth ; these are sometimes difficult to 

 see, and may have escaped Mr. Stebbing's notice, as they are not mentioned in his 

 description. No sexual difi'erences were observed. The females taken (except two on 

 1 Oct., 1902, which had young in their pouches) had generally parted with their ova. 



EURYSTHEUS LONGICORNIS. (PI. 12, fig. 21.) 

 Gammaropsis longicornis, A. 0. Walker, Ann. and Mag. Nat. Hist. XVIII. (1906), p. 153. 



W.Q., 29 Jan., 1902, one female ; W.Q., 20 Feb., 1902, several males and females ; 

 W.Q., 19 Mar., 1902, 10 fm., one female; W.Q., 22 Mar., 1902, 10 fm., one female. 



Head almost as long as the first two segments ; ocular lobe not much produced, 

 angular. 



Eyes round, red in the centre. 



Third pleon segment dorsally depressed behind ; posterior angle rectangular. 

 First urus segment dorsally depressed in front. First four side-plates not as deep as 

 the segments. 



Female : — 



Upper antennse, reaching to the penultimate joint of the flagellum of the lower ; 

 the first joint more than twice as thick and less than half as long as the second, which 

 is about one-fifth longer than the third ; flagellum six-jointed, the first joint almost as 

 long as the next two ; appendage one-jointed, about one-third as long as the first 

 joint of the flagellum. 



