UNIVERSITY OF CALIFORNIA PUBLICATIONS 

 ZOOLOGY 



Vol. 3, No. 2, pp. 13-38, Pis. 3-7 April 9, 1906 



CONTEIBUTIONS FEOM THE LABORATOEY 



OF THE 



MAEINE BIOLOGICAL ASSOCIATION OF SAN DIEGO. 



IX. 



OSTRACODA OF THE SAN DIEGO RECIION. 

 I.-HALOCYPRIDAE. 



BY 



CHANCEY JUDAY. 



INTRODUCTION. 



The material for the followino- paper was obtained from 

 plankton collections which were made dnring- the progress of 

 the work carried on by the Laboratory of the Marine Biological 

 Association of San Diego. Abont a thousand catches were ob- 

 tained between June 20, 1901 and July 20, 1905, most of them 

 being made between July 1, 1903 and the latter date. About a 

 liundred of the earlier catches M'ere made in the vicinity of San 

 Pedro, California, and the remainder in the region of San Diego. 

 Ostracoda were found in only 128 out of the total number of 

 catches. Only one of the catches reached a depth of more than 

 210 fathoms. This single haul was made from a depth of 400 

 fathoms and proved to be the richest, not only in the number of 

 individuals obtained, but also in the number of species repre- 

 sented. 



The present report includes only the pelagic forms, the lit- 

 toral forms being reserved for a future report, as comparatively 

 little of the collecting was done in the littoral region. The pe- 

 lagic Ostracoda belong to three genera and ten species, one of the 

 latter being new. 



