188 



ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 18 



Check-list of morphological criteria of species of Paraphoxus from southern 

 California. X=positive, 0=negative, XO=intermediate, S=spurs or short, 

 L=long 



Species are listed in order of their morphology, not alphabetically. 



Table 2 



PLATE 1 



Scheme to show intergradation of several characters in genera now considered 

 to belong to Paraphoxus. 



Top row, heads; middle row, third peraeopods; bottom row, end9 of gnatho- 

 pod 1. 



