36 Annals of the South African Museum. 



SCHIZOPODA. 

 Order Mysidacea. 



See General Catalogue of S.A. Crustacea, p. 395, and add 

 1912. Schizopoda, Hansen, Mem. Mus. Comp. Zool. Harvard, vol. 35, 



p. 175. 



FAMILY LOPHOGASTRIDAE. 



GEN. GNATHOPHAUSIA, von Willemoes Suhm. 



(See General Catalogue, pp. 401, 402.) 



GNATHOPHAUSIA ZOEA, Suhm. 



1875. Gnathophausia zoea, Sulim, Trans. Linn. Soc. London, ser. 2, 



vol. 1, p. 32, pi. 9, figs. 2-15, pi. 10, fig. 4. 

 1885. Sars, Rep. Voy. Challenger, vol. 13, pt. 37, 



p. 44, pi. 6, figs. 6-10. 

 1906. Ortmaun, Pr. U.S. Mus., vol. 31, pp. 28, 42 



pi. 2, figs. 2a, 2b. 

 1908. Hanseu, Ingolf-Exp., vol. 3, pt. 2, p. 93, 



pi. 4, figs. 3a-e. 



]910. ,, Hansen, Siboga Exp., vol. 37, p. 17. 



1912. ,, ,, Hansen, Mem. Mus. Comp. Zool. Harvard, 



vol. 35, p. 186. 



Ortmann and Hauseu agree in making G. willemoesii, Sars, a 

 synonym of G. zoea, to which Hausen adds G. sarsii, Wood- 

 Mason, already regained by Ortmann as merely a variety of 

 G. zoea. In the specimen here assigned to that species " the 

 outer spine of the antenual squama projects " rather consider- 

 ably " beyond the end of the lamellar lobe," but not nearly so 

 much as shown for G. longispina of Sars. This feature may 

 probably be subject to considerable variation. The supra- 

 orbital spine, antennal spine, and branchiostegal expansion 

 answer the figure given by Sars. The total length from the 

 apex of the rostrum to the end of the telson is 66 mm. The 

 rostrum, apparently complete, is 25'5 mm. long, the whole cara- 

 pace from apex of rostrum to the end of the hinder process 

 being 56 - 5 mm. in length. 



Locality. Cape Point N. 81 E., 32 miles; depth 460-630 

 fathoms. A 1312. 



