i <>f SoiitJi. Africa. 261 



Mandibles, cutting-edge 5-dentate in left, 7 in right, secondary 

 cutting-edge in left 8-dentate, 9 in right, spine-row with 9 spines, 

 molar somewhat conical, palp slender, 1st and 2nd joints subequal, 

 3rd not enlarged, shorter than 2nd, only the 3rd bearing setae, which 

 form an apical tuft. 



First maxilla, inner plate broad with 1 apical seta, outer plate with 

 10 spines, palp slender, 2nd joint narrow, curved, with apical spinules. 



Second maxilla, plates equal in length, inner narrow and more 

 tapering than outer, its inner margin setose. 



Maxilliped like that of Ampithoe, outer plate reaching to middle of 

 3rd joint of palp, inner margin with ca. 13 spines. 



First gnathopod similar in both sexes, 2nd joint not lobed on 

 anterior apex, 5th and 6th joints not lobed, cylindrical, their inferior 

 margins setose, 6th a little longer than 5th, of nearly uniform width, 

 distal margin between acute inferior apex (" thumb ") and hinge 

 augxilarly concave, a row of setae along the thumb, finger a little more 

 than ^ 6th, inner distal margin with 3-4 serrations. 



Second guathopod similar to 1st, but 5th and 6th joints a little 

 stouter, and inferior margin of 5th is lobed, similar in both sexes. 



First and second peraeopods, 2nd joint expanded, ovoid, distal half 

 wider than proximal, glandular, tapering, finger half length of 6th, 

 inner margin smooth. 



Third peraeopod shorter than 1st and 2nd, 2nd joint ovoid, 

 narrowing distally, 5th a little shorter than 4th, 6th longer than 4th, 

 with 3 spines on posterior margin (anterior when in its natural reverted 

 position) and 2 on posterior apex, finger and unguis short, curved. 



Fourth peraeopod longer than 3rd, 2nd joint not greatly expanded, 

 but stout, half as long again as broad, 4th longer than 5th, 6th subequal 

 to 4th, 4 spines on anterior margin and 2 on anterior apex, finger and 

 unguis moderately curved. 



Fifth peraeopod longest, oar-like, all the joints very stout and 

 expanded, more so in than $ , 3rd not very expanded but distally 

 lobed, 5th a little longer than 4th, 6th equal to 4th in <$ , equal to 5th 

 in , considerably narrower than 5th joint, its outer margin with a 

 subapical and an apical tuft of setae, inner margin with 2 subapical 

 groups consisting of 1 spine and several setae, and an apical one of 

 3-4 spines and setae, finger moderately curved ; the whole surface 

 of this peraeopod in both sexes minutely granulate, so that the margins 

 of the joints appear very finely creuulate. 



First uropod, peduncle longer than rami, of which outer is shorter 

 than inner, 5 marginal spines on outer, 2 on inner ramus, both rami 

 with 3 apical spines. 



