162 Mr. G. S. Brady on Entomostraca. 



The question whether this fact of prime importance is 

 general for all animals has made another step towards its 

 solution. Nevertheless, for the present I shall abstain from 

 sharing the assurance with which Van Beneden deduced his 

 generalization. But whether this mode of formation is uni- 

 versal, or only of very general occurrence, the able Belgian 

 observer will always have the merit of having not only dis- 

 covered the fact, but grasped its whole bearing. Observations 

 so important and so valuable to science may well lead us to 

 pardon bold theories. Would that all who launch imperfectly 

 founded hypotheses under the pompous title of theories had 

 so good an excuse ! 



XXI. — Note on Entomostraca from Kerguelen's Land and the 

 South Indian Ocean. By George Stewardson Brady, 

 C.M.Z.S., Professor of Natural History in the College of 

 Physical Science, Newcastle-on-Tyne. 



Two gatherings of Entomostraca, belonging to the order 

 Copepoda, have been submitted to me for examination by 

 the Rev. A. E. Eaton. One gathering, from a lake which 

 must, in all probability, have been brackish from communica- 

 tion at infrequent intervals (possibly at very high tides only) 

 with the sea, contained only Harpacticus fulvus, Fischer, a 

 species very commonly distributed over Europe in pools at or 

 above high-water mark. The other gathering was made by 

 the towing-net in the open sea, and contained likewise only 

 one species, apparently undescribed and belonging to the genus 

 Centropages, Kroyer. Females only were taken. 



Centropages brevicaudatus, no v. sp. 



Length T '-o of an inch. Upper antennas equal in length to the 

 first two cephalothoracic segments, 25-jointed, shortly setose, 

 and tapering slightly to the distal extremity. Swimming- 

 feet having both branches 3-jointed, inner branch short ; first 

 pair much shorter than the three following ; outer branch of 

 the fifth pair having its second joint produced internally into 

 a strong denticulated spine ; marginal setge of both branches 

 extremely short. Abdomen short ; caudal setse short, plumose, 

 subequal, length equal to half that of the abdomen. 



Hah. Lat. 33° 13' S., long. 37° 37' E. 



