292 Annals of the South African Musewin. 
Gren. PHROSINA Risso. 
1822. Phrosina Risso, J. de Phys. Chim. Hist. Nat. vol. 94, p. 244. 
1889. ca Bovallius, K. Sv. Vet. Ak. Handl. vol. 22, no. 7, 
p. 421. 
PHROSINA SEMILUNATA Risso. 
1822. Phrosina semilunata Risso, l.c. p. 245. 
1888. * $3 Stebbing, Le. p. 1425, pl. 176 (references 
and synonymy). 
1889. - s Bovallius, l.c. p. 426, pl. 18, figs. 3-30 
(references and synonymy). 
1900. . - Chevreux, Res. Camp Sci. Monaco, fase. 16, 
p. 147. 
1901. ‘; ; Vosseler, Ergebn. Plankton Exp. Amphip. 
pt. 1, p. 89, pl. 8, figs. 18—20. 
1904. 95 . Walker in Herdman’s Ceylon Pearl Fish. 
Suppl. Rep. 17, p. 250. 
11909. * . Walker, Tr. Linn. Soc. Lond. vol. 18, 
pt. 1, p. 52: 
1910. Ms . Stebbing, Le. p. 477. 
112: 5 Be Pearse, Proc. U.S. Nat. Mus. vol. 43 
[1913], p. 378. 
1913. ee Ms 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. Amphip. Crust. 
Brit. Mus. p. 320, pl. 51, fig. 6), with one or two minor differences. 
Third and fourth pleon segments with median tooth on posterior 
margin. 
Pleura of Ist to 3rd segments with the postero-inferior angles 
acute. 
First antenna, Ist joint as broad as long, 2nd joint 3 times length 
of Ist. 
First peraeopod, 4th joint 14 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. 
