270 Annals of the South African Museum. 



PLATE XX. (Crustacea, Plate C.) 

 Cyninnoinus trifurcus, n. sp. 



D.S. Lines indicating natural size of male specimen figured below in 

 dorsal aspect, without the limbs, but partially showing 

 antennae and pleon ; with a lower figure of the ventral aspect 

 in part, with the third maxilliped in attachment. 



PI. D., PI. V. Dorsal and ventral aspects of the unfolded pleon. 



a.s., a.i. First and second antennae. 



in., mxp. 1, mxp. 2. Mandible, first and second maxillipeds. 



mxp. 3. Third maxilliped, from the inner or upper side, agreeing in 

 scale with the full figure, less magnified than other mouth- 

 parts and the antennae. 



prp. 1, prp. 2, prp. 5. First, second, and fifth peraeopods. 



pip. 1, pip. 2. First and second pleopods of the male, with terminal 

 part of the second further enlarged. 



PLATE XXI. (Crustacea, Plate CI.) 

 Lithadia barnardi, n. sp. 



n.s. Lines indicating natural size of specimen figured below in dorsal 

 view, with first three peraeopods on the right, first, second, 

 fourth and fifth on the left. Carapace probably abnormal 

 on the right front. 



PI. Pleon of female in dorsal view, with telson much more magnified. 



ep., mxp. 3, mxp. 3. Epistome and upper and lower surfaces of the 

 third maxillipeds, less highly magnified than the other 

 mouth-organs. 



in., mx. 1, nix. 2, mxp. 1, mxp. 2. Mandible, first and second maxillae, 

 first and second maxillipeds. 



prp. 1, prp. 2. First and second peraeopods. 



PLATE XXII. (Crustacea, Plate OIL) 

 Cryptodromia micronyx, n. sp. 



n.s. Lines indicating natural size of the carapace in the curved dorsal 



view of a male specimen, with limbs of the right side in 



attachment. 



PI. Pleon of the male, incompletely flattened, in dorsal aspect. 

 a.s., a.i. First and second antennae, more highly magnified, 

 in., mx. 1, 2. mxp. 1, 2, 3. Mandible, first and second maxillae, first 



second, and third maxillipeds, uniform in scale with the 



antennae. 



