Contributions to the Crustacean Fauna of South Africa. 427 



Antenna 1 3-jointed, basal joint not greatly expanded, not con- 

 tiguous with its fellow. 



Antenna 2 4-joiuted, basal joint not greatly expanded. 



A pair of large tubes as described by Caiman in P. giardi. 



Maxilliped, anterior .portion produced both backwards and forwards 

 on the outside, posterior portion triangular, its antero-iuterior angle 

 not produced, no palp. 



Peraeopods with 3rd joint bulbous, exterior angle of palm produced 

 into a rounded setose lobe on which the curved finger closes. 



The 5 pairs of marsupial plates overlap in the centre. The first 

 pair with a blunt posterior process on the distal lobe, no overlapping 

 ridge. Hind margin of the 4th pair minutely setulose, of the 5th 

 strongly setose. 



Pleopods lanceolate, becoming slightly shorter posteriorly, outer and 

 inner rami subequal, with small warts, chiefly on the anterior pairs. 



Uropods lanceolate with acute apices. 



Male. Lanceolate in outline, head broader than long, anterior 

 margin rounded. Peraeou segments distinct, laterally narrowed, 

 subaugular. Pleon abruptly narrower than peraeon, all 6 segments 

 distinct, 6th segment broader than long, hind margin emargiuate, 

 postero-lateral angles without setae. 



Antenna 1 3-jointed ; antenna 2 4-jointed ; the basal joints not 

 expanded. 



Peraeopods with 3rd joint not bulbous, palm oblique. 



Pleopods there are obscure indications of lobe-like processes on 

 the first 3 segments and possibly on the 4th also. 



Length: ? 9 mm., <$ 4 mm. ; breadth: $ 6mm., $ 1'5 mm. 



Colour : In spirit yellowish-white. 



Locality : Off Buffalo Eiver, East London. 300 fathoms. <$ $ 

 and??, s.s. " Pieter Faure." 16/4/01 and 24/4/01. (S.A.M. Nos. 

 A269 and A2273.) 



Host : Munida sancti-pauli Henderson. In the branchial cavity. 



Distinguished from P. crenulata Sars 1898 by the acute epimera 

 and the rounded pleura in the ? . The ^ bears most resemblance to 

 that of P. giardi Caiman 1898. 



PSEUDIONE CRENULATA Sars. 



1898. Pseudlone crenulata Sars, Crust. Norw. vol. 2. p. 203, pi. 86, 



fig. 1. 

 1900. ' Bonnier, Trav. Stat. Wimereux, vol. 8, 



p. 303. 



