Crustacean Fauna of South Africa. 153 



GEN. STENOTHOE Dana. 



1852. Stenotlwe Dana, Ainer. J. Sci. ser. 2, vol. 14, p. 311. 

 1904. ,, Walker in Herdtnan's Ceylon Pearl Fish. Suppl. Rep. 



17, p. 261. 



1906. Stebbing, I.e. pp. 192, 725. 



1907. Chevreux, Bull. Mus. d'Hist. Nat 1907, no. 6, p. 412. 



1908. ,, id. Bull. 1'Iust. ocean. Monaco, no. 113, p. 1. 

 1908. id. ibid. no. 129, p. 1. 



1908. id. Mem. Soc. Zool. Fr. vol. 20, p. 471. 

 1911. 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, hori- 

 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. Pleou segment 3 with postero-lateral angles rounded with 

 a very minute projection. Pleon segments 5 and 6 very short. 



Telsoii 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 

 1st, 3rd joint very short and indistinctly separated from flagellum, 

 which is ca. 33-jointed, longer than peduncle, no accessory fiagellum. 



Second antenna subequal to 1st, ultimate peduncular joint slightly 

 shorter than penultimate, fiagellum 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^- 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 joint 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. 



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