270 Annals of the South African Museum. 
1888. Siphonoecetes Stebbing, Challeng. Rep. vol. 29, p. 212. 
1893. 3 Della Valle, F. u. Fl. Neapel. vol. 20, p. 357. 
1894. ~ G. O. Sars, Crust. Norw. vol. 1, p. 609. 
1904. 5 Walker in Herdman’s Ceylon Pearl Fish. Suppl. 
Rep. 17, p. 294. 
1905. 2 Rathbun, Pap. Boston Soe. vol. 7, p. 74. 
1906. 93 Stebbing, lc, pp. 681, 740 (references, with varia- 
tions in spelling). 
1910. id. Sci. Res. “ Thetis,” pt. 12, p. 618. 
SIPHONOECETES ORIENTALIS Walker. 
1904. Siphonoecetes orientalis Walker, l.c. p. 294, pl. 7, fig. 49. 
1906. uf Stebbing, lc. p. 740. 
The South African specimens agree with Walker’s description except 
in the following slight details : 
Eyes poorly developed, composed of 8 lenses, more or less separate 
and arranged in a circle. 
First antenna extending beyond end of penultimate peduncular 
joint of 2nd antenna, peduncular joints becoming successively shorter, 
flagellum subequal to peduncle, 10-11-jointed. (Walker's specimens 
had 14 joints; Stebbing in 1910, lc. p. 618, remarks on the large 
number of flagellar joints in this species, a number double that found 
in any other species.) 
Second antenna as long as body, ultimate and penultimate peduncular 
joints subequal, the ultimate joint densely setose, flagellum scarcely 
more than half length of ultimate joint, composed of 1 long and 
2 short joints, densely setose, with marginal and apical unguiform 
spines. 
In addition it may be stated that the mouth-parts resemble those 
figured by Sars (1c. pl. 218) for S. colletti Boeck, but the inner plate 
of the first maxilla is quite obsolete. Ramus of 3rd uropod as broad 
as long. 
Tube constructed of fragments of shell. 
Length ; 6 mm. 
Colour: In spirit, whitish. 
Locality: Umhloti River mouth NW. 3 W., distant 15 miles (Natal). 
100 fathoms. 4 ¢ ¢ ; Nanquas Peak N.? W., distant 21 miles (East 
end of Algoa Bay). 63 fathoms. 1 2 in tube; Beacon East of East 
London N. + E., distant 10 miles. 52 fathoms. 1 ¢ ; Amatikulu 
River mouth NW. 3 N., distant 9 miles (Natal). 26 fathoms. 1 ¢. 
