394 Annals of the South African Museum. 



Colour : In spirit, uniform dirty yellow. 



Locality : Green Point lighthouse S. } W. distant 2i miles (Table 

 Bay). 22 fathoms. 5/3/00. 3 3 3 . ss. " Pieter Faure." (S.A.M. 

 No. A31.) 



CYMODOCE UNGUICULATA, n. sp. 

 (Plate XXXIV. B.) 



Also close to C. uncinata. Body smooth, without sculpturing, 

 with thin scattered setae. The margins of the epimera, pleon, 

 telson, and uropods with a thick fringe of setae, stronger in $ than 

 $ . Telson with 2 large submedian bosses in both sexes, apex 

 ia $ tritid, the middle lobe projecting a little beyond the lateral 

 ones and bearing a button-like knob on its upper surface, apex in 5 

 with a notch concealed in dorsal view by a short blunt projection. 



Flagella of 1st and 2nd antennae respectively, 12 and 14-jointed 

 in 3 , 17 and 16-jointed in ? . 



The mouth parts do not differ greatly from those of C. uncinata. 

 There are 9-10 spines on outer plate of 1st maxilla. In an ovigerous 

 $ with modified mouth parts the inner plate of 1st maxilla is without 

 setae, the other plate minutely setose, 2nd maxilla without long setae 

 on any of the plates, terminal 4 joints of maxilliped without setae, 

 inner plate with only 2 apical setae and outer margins of 2nd joint 

 and epipod setose. 



First gnathopod with 6, 3 and 4 spines respectively on inner 

 margins of 4th, 5th and 6th joints in both sexes. 



Male appendages on 7th peraeon segment intermediate in 

 length between those of C. uncinata and C. falcata, but similar 

 in shape. 



First to third pleopods with 3 hooked spines in 3 , 2 in 5 , on 

 inner apex of- peduncle. Male stylet on 2nd pleopod very distinctive. 

 As far as the end of ramus it is of equal width, it then broadens out 

 into a lanceolate spatula with pointed apex and margins thickly set 

 with minute recurved spinules. An approximation to this form of 

 stylet is found in Cilicaca whitcleggei, Stebbing (1905, I.e. p. 40, 

 pi. 9 A). 



Uropods scarcely reaching beyond telsonic apex, inner ramus 



truncate, as in C. uncinata, outer ramus folding under inner, ovate 



lanceolate, apex acute, curved outwards, with a tooth on inner 



margin and a semicircular indentation on outer margin, in ovigerous 



5 $ the apex is usually short and blunt, not falcate. 



Length : $ 13 mm., J 11 mm. ; breadth : $ 5 6 mm. 



Colour: In spirit, uniform yellowish, both pairs of antennae, 



