(San Diego Trough); Guadalupe Island, Mexico, and southward. Numbers of pectoral and anal 

 rays, AO photophores, and gill rakers from these four areas are given in Table 1. Dorsal rays 

 numbered 12 (11-13) and were virtually identical for all four areas. 



Table 1. Numbers of Pectoral and Anal Fin Rays, AO Photophores, and Gill Rakers 

 FOR Protomyctophum (Hierops) crockeri from Four Areas of the North- 

 eastern Pacific Ocean 



Area 



40''-50° N, west 

 ofl30°W. 



Near coasts of Wash- 

 ington and Oregon 



Southern California 

 (San Diego Trough) 



Guadalupe Island 

 and southward 



13 



14 



15 



Pectoral rays 



16 



17 



Mean 



40°-50'' N, west 

 of 130° W. 



Near coasts of Wash- 

 ington and Oregon 



Southern California 

 (San Diego Trough) 



Guadalupe Island 

 and southward 



19 



20 



21 



Anal rays 



22 



23 



24 



Mean 



40°-50° N, west 

 ofl30°W. 



Near coasts of Wash- 

 ington and Oregon 



Southern California 

 (San Diego Trough) 



Guadalupe Island 

 and southward 



12 



13 



AO photophores 



14 



15 



16 



Mean 



Upper gill rakers 



N 



Mean 



40° -50° N, west 

 of 130° W. 



Near coasts of Wash- 

 ington and Oregon 



14 



15 



Lower gill rakers 



16 



17 



18 



N 



165 

 100 



Mean 



15.90 

 16.03 



