AMPHIPODA. '279 



mens, T consider them fco be substantially identical. In the former the denticulation 

 of the hind margin of the 3rd pleon segment is finer ; the flagellum of the upper 

 antennae is 9-jointed and considerably longer than the peduncle in the female; the 

 last 3 pairs of peraeopods have the 1st joint narrower, the hind margin concave, 

 obscurely serrate, and produced downwards. 



Length barely 4 millims. 



To illustrate the difficulties one has to contend with in determining species from 

 specimens sent from abroad in spirit, I may mention that of the 30 odd specimens 

 only one had the lower antennas, and perhaps 5 or G the broad 3rd uropods. It 

 would be far better if specimens, when picked out, were sent home m pure glycerine. 



Lilljeborgia, Sp. Bate, 18G2. 

 Lilljeborgia pallida, Sp. Bate. 



L. pallida, Bate, Norman, ' Aim. ami Mag. Nat. Hist.,' Ser. G, vol. 4 (1889), p. 116, plate x. 

 L. pallida, Bate, G. 0. S.uis, 'Amph. of Norway,' p. 530, plate 187. 

 Nicippe pallida (Hate), Delia Vai.i.e, be. cit., p. 658, plate 19. 

 Stations XIX., LI. Length 4'5 millims. 



Lembos,* Sp. Bate, 1857 (=Autonoe, Bruzelius, 1859, in part). 

 Lembos podoceroides, n. sp. Plate VI., figs. 39. 



( 'oast of Ceylon, under 100 fathoms, generally distributed. 



Head as long as the first 2 segments ; ocular lobe as in L. (Autonoe) websteri, Bate. 

 Eye round-oval, dark. 



Third segment of the pleon, with the hind and lower margins of the epimere 

 convex, the posterior angle subacute and produced ; a diagonal line running forward 

 and upward from it (fig. 39. pi. 3 ). 



First segment of the urus almost as long as the remainder, including the telson. 



Upper antennse reaching to the pleon, peduncle reaching about the middle of the 

 last joint of that of the lower ; 1st joint about 3 times as wide and three-fourths as 

 long as the 2nd, and 3 times as the 3rd. Flagellum about 22-jointed in the male, 

 the joints lengthening distally. Appendage 7-jointed, the last minute, reaching the 

 7th joint of the flagellum. 



Lower antennse reaching to the middle of the flagellum of the upper ; 2nd and 3rd 

 joints subequal ; flagellum in female 5-jointed, shorter than the last joint of the 

 peduncle. Both pair of antennas very sparsely setose. 



Mandibular palp large and projecting, the 3rd joint as long as the 1st and 2nd 

 united; the 2nd expanded distally (fig. 39. m.). 



First gnathopods in the female (fig. 39. gn. 1 ?) : 



Side-plates rhomboidal, shorter than the 1st joint, the anterior angle blunt . 

 1st joint stout, rather longer than the next 3; wrist about half the length of the 



* For the reasons for re-instating this genus see STEBBING, 'Ann. and Mag. Nat. Hist.,' Ser. 6, vol. xvi, 

 L895, p. 206. 



