282 Annals of the South, African Museum. 



published. Among these here and there I have ventured fearfully 

 to introduce some changes, as in proposing Pachos among the 

 Copepoda in place of the preoccupied Pachysoma, Claus, and in 

 vindicating Ostrapoda, Straus, against Ostracoda, Latreille. 



The substitution of Mgcon for Eisso's preoccupied Egeon appears 

 to originate, nob as I formerly supposed with Guerin, but with 

 Kinahan in 1857, who at that date rejected the genus, but revived 

 it in 1862, and to him the name is therefore rightly attributed by 

 J. V. Carus in 1885. 



Nocticula, J. V. Thompson, 1829, claims rather fuller notice than I 

 have given it on p. 396. Sars quotes it as Noctiluca. But Thompson 

 may have had his own reasons for adopting an anagrammatic form 

 founded on that name rather than the name itself. Actually in his 

 Eesearches, vol. i., pt. 1, Mem. 3, p. 52, he prints Nocticula. He 

 explains that he establishes this genus for an animal discovered and 

 named by Sir Joseph Banks as " Cancer fulgens (Macartney Phil. 

 Trans., 1810)," pi. 14, fig. 1 and 2. On p. 53 he takes the liberty of 

 renaming this animal " Nocticula Banksii or Luminous Shrimp." 

 Thompson's scholarship was evidently not on a par with his 

 scientific ability, since he calls the group to which his new genus 

 belongs Shizopodae. But Nocticula would be valid, if its species 

 could be identified. 



The Catalogue may expect to be reproached for its great length. 

 As its foster-parent I venture to urge in its defence that ships bound 

 for almost anywhere take South Africa on their way and fish in its 

 teeming waters without remorse. That is not the only thing. It is 

 well known that by a legal fiction an ambassador carries a circum- 

 ambient fragment of his own country with him into the land to 

 which he is accredited. But as an actual fact the earth of African 

 lakes, transferred to the aquaria of Professor Sars in Norway has 

 yielded in that distant clime a plentiful crop of true South African 

 Crustacea. The length, then, of the Catalogue is not due to any 

 malice of its own, but to the wonderful activity of carcinologists in 

 recent years. Apologies indeed are due for the omission of innumer- 

 able important references, balanced by apologies to students of the 

 modern school who will perhaps regard most of those that are given 

 as entirely superfluous. 



