Crustacean Fauna of South Africa. 153 
Gen. STENOTHOE Dana. 
1852. Stenothoe Dana, Amer. J. Sci. ser. 2, vol. 14, p. 311. 
1904. 3 Walker in Herdman’s Ceylon Pearl Fish. Suppl. Rep. 
leaps Zoe 
1906. A Stebbing, le. pp. 192, 725. 
1907. . Chevreux, Bull. Mus. d’Hist. Nat 1907, no. 6, p. 412. 
1908. p id. Bull. ’Inst. océan. Monaco, no. 113, p. 1. 
1908. ‘5 id. ibid. no. 129, p. 1. 
1908. P id. Mém. Soe. Zool. Fr. vol. 20, p. 471. 
OWE Bs id. ibid. vol. 23, p. 197. 
STENOTHOE DOLICHOPOUS N. sp. 
(Plate XXVI. Figs. 15-17.) 
Body compressed, especially posteriorly. Rostrum half length of head, 
antero-lateral angles of head subacute, eyes large, projecting, thori- 
zontally oval. Side-plate 1 oblong, postero-inferior angle produced 
downward in a triangular lobe, almost completely concealed under 
side-plate 2, side-plates 2 and 3 oblong, deeper than long, inferior 
margin straight, antero- and postero-inferior angles rounded, side- 
plate 4 subrectangular, nearly twice as long as deep, inferior margin 
and angles as in side-plates 2 and 3, posterior margin straight not 
excavate. Pleon segment 3 with postero-lateral angles rounded with 
a very minute projection. Pleon segments 5 and 6 very short. 
Telson nearly twice as long as broad, oval, lateral margins with one 
blunt spine near base, one larger one in middle and one equally large 
near apex. : 
First antenna at least as long as total length, 2nd joint shorter than 
Ist, 3rd joint very short and indistinctly separated from flagellum, 
which is ca. 33-jointed, longer than peduncle, no accessory flagellum. 
Second antenna subequal to Ist, ultimate peduncular joint slightly 
shorter than penultimate, flagellum equal to the last two peduncular 
joints together, ca. 24-jointed. 
Mouth-parts normal, without particular features; outer plate of 
first maxilla with 6 apical spines ; in the mandible there are 3-4 setae 
on the small protuberance where the palp should be, and 4 spines in 
the spine-row ; maxilliped. elongate and slender, 4th joint equal to 
2nd, 5th nearly equal to 4th, 3rd short. 
First gnathopod very elongate, 4th jot subequal to 3rd, forming 
a broadly rounded lobe, scarcely produced, 5th subequal to 2nd, 6th 
shorter, narrowly linear, palm oblique and defined by 2 spines, finger 
matching palm. 
sa 
