292 Annals of the South, African Museum. 



GEN. PHEOSINA Eisso. 



1822. Phrosina Eisso, J. de Phys. Chim. Hist. Nat. vol. 94, p. 244. 

 1889. Bovallius, K. Sv. Vet, Ak. Handl. vol. 22, no. 7, 



p. 421. 



PHROSINA SEMILUNATA Eisso. 



1822. Phrosina semilunata Eisso, I.e. p. 245. 



1888. Stebbing, I.e. p. 1425, pi. 176 (references 



and synonymy). 



1889. ., Bovallius, I.e. 'p. * 426, pi. 18, figs. 3-30 



(references and synonymy). 



1900. Chevreux, Ees. Camp Sci. Monaco, fasc, 16, 



p. 147. 



1901. Vosseler, Ergebu. Plankton Exp. Ampliip. 



pt, 1, p. 89, pi. 8, figs. 18-20. 



1904. Walker in Herdinan's Ceylon Pearl Fish. 



Suppl. Eep. 17, p. 230. 



1909. Walker, Tr. Linn. Soc. Lond. vol. 13, 



pt. 1, p. 52. 



1910. Stebbing, I.e. p. 477. 



1912. Pearse, Proc. U.S. Nat. Mus. vol. 43 



[1913], p. 378. 



1913. Stewart, Ann. Mag. Nat. Hist. ser. 8, 



vol. 12, p. 257. 



The single specimen taken by the s.s. " Pieter Faure " represents 

 the form P. nicetensis as figured by Bate (1862, Cat. Auiphip. Crust. 

 Brit. Mus. p. 320, pi. 51, fig. 6), with one or two minor differences. 



Third and fourth pleou segments with median tooth on posterior 



margin. 



Pleura of 1st to 3rd segments with the postero-iuferior angles 

 acute. 



First antenna, 1st joint as broad as long, 2nd joint 3 times length 

 of 1st. 



First peraeopod, 4th joint 1 times as long as broad, inferior 

 margin equal to palm, with strong spine at their junction, palm with 

 5 denticles, 5th and 6th joints together longer than palm. 



Second peraeopod, 4th joint ovate, a long stout spine springing 

 almost from base, the inferior (posterior) margin being very short, 

 palm very oblique, with 6 denticles, the 2 nearest the hinge of 

 finger smaller than the others, 5th and 6th joints together only a little 

 longer than palm. 



