General Catalogue of South African Crustacea. 519 



TRIBE GYMNOPLEA on GAL AX IDE A. 



1892. Gymnoplea, Giesbrecht, F. u. Fl. Neapel, vol. xix., p. 41. 

 1898. G., Giesbrecht and Schmeil, Das Tierreicb, vol. vi., p. 7. 

 1903. Calanoida, Sars, Crustacea of Norway, vol. iv., pp. 2, 5. 



FAMILY CALANID^E. 



1849. CalanidfB, Dana, Proc. Amer. Ac. Sci., vol. ii., p. 9. 

 1898. C., Giesbrecht and Schmeil, Das Tierreich, vol. vi., p. 12. 



The family Calanidae is here taken in a much more extended 



sense than that adopted by Professor G. 0. Sars in his 



Crustacea of Norway, vol. iv., 1903. 



GEN. CALANUS, Leach. 



1819. Calanus, Leach, Diet. Sci. Nat., vol. xiv., p. 539. 



1898. C., Giesbrecht and Schmeil, Das Tierreich, vol. vi., p. 12. 



: CALANUS FINMARCHICUS (Gunner). 



1765. Monoculusfinmarchicus, Gunner, Skr. Kjobenh. Selsk., vol. x., 

 p. 175, fig. 20-23. 



1898. Calanus /'., Giesbrecht and Schmeil, Das Tierreich, vol. vi., 

 p. 14. 



1904 (?). C.f., Cleve, Mar. Invest. S. Africa, vol. iii., p. 185. 



" Common south of the Cape Colony, rare east and west." 

 Sent by Dr. Gilchrist. 



It may suffice here to say, once for all, that the Copepoda 

 cited from the Memoir by Professor E. T. Cleve were all 

 derived from Dr. Gilchrist's marine investigations on board 

 the Pieter Faure. In his valuable Introduction Professor 

 Cleve says : " The region of South Africa is of the greatest 

 interest in its planktonological aspect, as it represents a 

 battlefield of two mighty currents of different origin, the 

 Agulhas Current and the Westwind Drift. The former carries 

 the warm water of the Indian Equatorial Current towards 

 the south, the latter the water of the Southern Pacific Ocean 

 through the space between Fuegia and the Antarctic Con- 

 tinent. The east coast of South Africa has a steep slope so 

 that depths of 900 to 3,000 metres (500 to 1,800 fathoms) will 

 be found at a short distance from the land. On the south side, 



