360 Annals of tJie South African Museum. 



between them concave ; in the $ only the median longitudinal 

 concavity present. First peraeon segment longer than 2nd or 3rd, 

 but subequal to 4th and 7th, 5th and 6th a little longer than 

 1st. Pleon resembling that of L. f/amineri, Stebbing, except for 

 its denser covering of setae ; 6 apical spines on telson. 



First antenna equal to peduncle of second antenna, 3rd joint a 

 little over half the length of the fused 1st and 2nd joints, flagellum 

 equal to peduncle, 6-jointed, with sensory filaments. 



Second antenna reaching to about middle of 2nd peraeori seg- 

 ment, 4th joint equal to 1st, 2nd and 3rd together, 5th a little 

 shorter, flagellum equal to peduncle, 12-jointed, setose. 



Frontal lamina pentagonal. 



Upper lip thrice as broad as long, slightly emarginate. 



Lower lip, lobes broad with truncate apices. 



Mandibles most resembling those figured for L. latifrons, Steb- 

 bing, cutting-edge bidentate, secondary cutting-edge bidentate, 

 molar conical with a few 7 minute apical setules, palp strong, rather 

 longer than trunk of mandible, 2nd joint a little longer than 1st, 

 3rd joint shortest, 2nd and 3rd setiferous. 



First maxilla, the curved spine on outer plate is of moderate 

 length, about \ that of outer plate. 



Second maxilla, 2nd joint with 3 apical setae, 3rd joint very 

 slender with 2 apical unequal setae. 



Maxilliped, 2nd joint scarcely longer than broad, basal joint in 

 V very large, with plumose setae on its inner produced apex, 

 epipod in ? (vibratory plate) reaching to 6th joint, margin with 

 plumose setae. 



First peiaeopod, 3rd joint with spine on outer apex and 2-3 

 setules on inner apex, 4th joint with 4 strong spines on inner 

 margin (the apical one the largest) and 2 spines on outer apex, 

 6th joint with 3 long setae on inner apex, in J the unguis is 

 rather longer and more strongly curved than in ? . 



Second and third peraeopods, 3rd joint with 1 spine on outer 

 apex and 2 stout spines on inner apex (the apical one the larger), 

 4th joint as in first peraeopod. 



Seventh peraeopod resembling that of L. gardineri, Stebbing. 



Male appendages on 7th peraeon segment close together, short, 

 with blunt apices. 



Second pleopod, male stylet long, slender, acute, extending a 

 short distance beyond apex of ramus. 



Uropods, inner ramus extending only a very little beyond tel- 

 sonic apex, apex broadly rounded with 9 spines and numerous 



