12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
(McMurrich)]. South of Magdalena Bay, Baja California, jollae is 
replaced by Labidocera diandra, new species, which is described below. 
Ficure 2.—Location of plankton samples examined for Labidocera. CalCOFI stations 
(parallel lines perpendicular to the coasts of California and Baja California) have been 
occupied regularly since 1950; from them one or more samples from each seasonal quarter 
of one year were examined. 
Labidocera kolpos, new species 
Figures 3-5, 10 
LOCALITIES, MATERIALS.—See table 2. 
LENGTH AND BODY PROPORTIONS.—Adult and stage V copepodite 
