﻿36 Annals of the Suuth African Museum. 



SCHIZOPODA. 

 Order Mysidacea. 



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

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

 p. 175. 



Family LOPHOGASTRIDAE. 



Gen. GNATHOPHAUSIA, von WiUemoes Suhm. 



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



Gnathophausia zoea, Suhm. 



1875. Gnathophausia zoea, Suhm, Trans. Linn. Soc. Loudon, ser. 2, 



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

 1885. „ „ Sars, Kep. Voy. Challenger, vol. 13, pt. 37, 



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

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



pi. 2, figs. 2a, 26. 

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



pi. 4, figs. 3a-e. 

 1910. ,, ., Hansen, Siboga Exp., vol. 37, p. 17. 



1912. ,, ,, Hansen, Mem. Mus. Comp. Zool. Harvai-d, 



vol. 35, p. 186. 



Ortmann and Hansen agree in making G. willeinoesii, Sars, a 

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

 Mason, already regarded by Ortmann as merely a variety of 

 G. zoea. In tlie specimen here assigned to that species ** the 

 outer spine of the anteunal 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 branch iostegal 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 255 mm. long, the whole cara- 

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

 being 565 mm. in length. 



Locality. Cape Point N. 8P E., 32 miles; depth 460-630 

 fathoms. A 1312. 



