370 Annals of the South African Museum. 



tubercles ; apex moderately deeply notched, the median lobe reaching 

 about to the level of the lateral lobes. 



Flagella of antennae 1 and 2 respectively 18- and 20-jointed. 



Male appendages on 7th peraeon segment close together, tapering to 

 subacute apices. 



Pleopods 1-3, peduncle with 3-hooked setae ; male stylet on 2nd 

 half as long again as ramus, very slightly tapering, minutely spinulose 

 all over, apex subacute. 



Uropod, both rami extending well beyond telsonic apex, inner ramus 

 subulate, apically acute, outer ramus narrow, a little shorter than 

 inner, apically bifid, both rami setulose all over. 



Length : 15 mm. ; breadth : 8 mm. 



Colour : In spirit yellowish. 



Locality : 33 9' S. 28 3' E. (off East London). 47 fathoms. 2 <J J 

 in sponges, s.s. " Pieter Faure." 28/12/98. (S.A.M. No. A4159.) 



CYMODOCE CAVICOLA n. sp. 

 (Plate XYI. Figs. 4, 5.) 



Body in both sexes with very short and sparse setae, chiefly on the 

 posterior part of the body, and more noticeable in the young than 

 the adult ; entire surface of head (including epistome and basal 

 joints of 1st antennae), peraeon and pleon finely and closely pitted, 

 the pits being most noticeable on the telsou. 



Head with moderate-sized median point. Peraeon segments, in 

 addition to the pitting, each with a transverse band of small granules 

 on the posterior margin, more distinct on the posterior segments than 

 on the anterior ones, and not quite so noticeable in the $ as in the <$ . 



Pleon segments 1-4 also with a few minute granules in addition to 

 the pitting ; segment 4 not produced or lobed. 



Telson in <$ with 2 submedian bosses in the centre, distal margin 

 finely crenulate, apical notch rather wide, but shallow, median lobe 

 triangular, extending as far as the lateral lobes, and, like them, ter- 

 minating in a tiny point, the points on the lateral lobes curved outwards ; 

 in 9 like that of the <$ except that the distal margin is scarcely 

 perceptibly crenulate and the apical lobes are blunt. 



Antenna 1, basal joints entire, flagellum ca. 14-joiuted. 



Antenna 2, flagellum ca. 8-jointed. 



Maxilliped, lobes on 5th-7th joints not greatly elongate. Mouth- 

 parts in $ modified. 



Peraeopod 1, spines on inner margin of 4th-6th joints respectively 

 2, 3 and 4. 



