152 Annals of the South African Museum. 
little shorter than Ist, 3rd short, flagellum longer than peduncle, ca. 
34-jointed, accessory flagellum minute. 
Second antenna reaching to middle of 2nd peduncular joint of Ist 
antenna, ultimate peduncular joint shorter than penultimate, thin and 
somewhat laminate, flagellum shorter than ultimate peduncular joint, 
ca. 10-jointed, but joints very indistinct. 
Mandibular palp rather short and stout, 3rd joint a little longer 
than Ist and shorter than 2nd. 
The other mouth parts without particular features. 
First gnathopod, inner margin of process of fifth joint not serrulate, 
6th joint same width throughout, imner margin finely denticulate, 
finger + length of 6th. 
Second gnathopod, 5th joimt ending subacutely, 6th elongate-oval, 
palm defined by a blunt angle, with 3 large blunt-pointed tubercles 
and a small one near hinge, the 2 large ones nearest hinge close 
together, between them and the other large tubercle a narrow and 
rather deep gap, between the last large tubercle and the angle of palm 
some small irregular denticles, finger equal to palm with a rather deep 
semicircular incision at base, bounded by a denticle. . 
Peraeopods not very slender, almost totally devoid of spines. 
First and second uropods also almost spineless; third uropods lost. 
Length : 12 mm. 
Colour : In spirit, pale pinkish. 
Locality: Cape St. Francis NE., distant 29 miles. 75 fathoms. 
2 8 8; Sandy Point (near Cape Morgan) NE. by N., distant 6 miles. 
51 fathoms. 1 juv. d; s.s. ‘Pieter Faure.” 19/2/02 and 14/8/01. 
(S.A.M. Nos. A167 and A3399.) 
The distinctive marks of this species are the length of the first 
antennae, whence the specific name, and the 2nd gnathopod. 
Famity STENOTHOIDAE. 
1871. Stenothoinae Boeck. Forh. Selsk. Christian. 1870, p. 138. 
1888. Stenothoidae Stebbing, Challeng. Rep. vol. 29, p. 747. 
1892. i G. O. Sars, Crust. Norw. vol. 1, p. 234. 
1900. » Chevreux, Rés. Camp. Monaco, vol. 16, p. 55. 
1901. os id. Bull. Soc. Rouen, vol. 36, p. 2838. 
1906. = Stebbing, Das Tierreich, 21, pp. 192, 725. 
1907. * Walker, Nat. Antarct, Exp. vol. 3, p. 18. 
1910. te Stebbing, Gen. Cat. 8. A. Crust. p. 453. 
