26 G. Sårs. 



3. Braiicliipodopsis Hodgsoiii, G. O. Sårs, n. gen. & sp. 



(Pl. III). 



Specific Characters. — Body less slender than in the 

 preceding form, with the tail much shorter. Head consider- 

 ably larger in male than in female and without any frontal 

 lobes. Trunk slightly depressed, with the segments simple, 

 not expanded laterally. Genital region in female very large, 

 about equalling in length half the trunk, that of male con- 

 siderably smaller. Tail, not including the caudal rami, 

 scarcely attaining half the length of the preceding part of the 

 body. Antennulæ, especially in male, very much elongated. 

 Antennæ in female simple, blade-like; in male short and 

 robust, basal part very massive, being produced inside to 

 a thick conical prominence bidentate at the tip, and carry- 

 ing at the end inside a small linguiform lobe, terminal 

 part forming a strong incurved claw. Oral parts normal. 

 Branchial legs with a single, coarsely serrate basal plate, 

 terminal lobe of endopodite rather broad, and having the 

 inner corner, in the middle pairs, produced to a blunt, 

 tooth-like projection. Marsupium in female confined to the 

 genital region, and forming a very capacious sac-like ex- 

 pansion, not prolonged beyond its limits. Sexual appendages 

 of male of normal appearance. Caudal rami very different 

 in the two sexes, being of quite an unusual size in male, 

 and curved like a pair of much bowed tongs, outer edge 

 and proximal part of inner one fringed with comparatively 

 short setæ, distal part of inner edge armed with small acute 

 teeth, tip curled up in front. Body pellucid, with a faint 



