South African Crustacea. 35 



The two pairs of antennae agree closely with those of 

 L. peringueyi. In the first pair the longer flagellum is 28 mm. 

 long, its companion in brief attachment to it being about 

 6 - 5 mm. in length, while the free flagellum is 19 mm. long, 

 The flagellum of the second antennae I make out to be 56 mm. 

 in length. 



The mandibles belong to the group which have the palp 

 three- jointed. The third joint in this species is little longer 

 than the first. In the first maxillae the blunt inner lobe of the 

 bifid apex has the sinuous spine which has been observed in 

 other species. In the third maxillipeds the antepenultimate 

 joint is less curved than in L. peringueyi. The first peraeopods 

 have the chela three-fifths the length of the wrist, the fingers 

 subequal to the palm ; in the second pair the movable finger is 

 seven-ninths the length of the palm, which is a little shorter 

 than the wrist. 



Dr. Gilchrist reported the colour as dark green in parts which 

 turned red, but the red has since disappeared. 



Locality. Little Brak River, Mossel Bay. No. 23. 



This widely distributed and rather variable species has been 

 several times described, but, so far as I can find, has not 

 hitherto been figured. 



FAMILY OPLOPHORIDAE. 

 GEN. ACANTHEPHYRA, A. Milne-Edwards. 



ACANTHEPHYRA BRACHYTELSONIS, Bate. 



Plate XCIV. 



(This species was discussed last year 1915 in these Annals, 

 vol. 15, pt. 2, p. 97.) 



FAMILY NBMATOCARCINIDAE. 



GEN. NEMATOCARCINUS, A. Milne-Edwards. 



NEMATOCARCINTJS PARYIDENTATTJS, Bate. 



Plate XCV. 

 (For discussion of the species, see these Annals, vol. 15, pt. 2, p. 99.) 



