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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 76 



rendered key. Fowler, 1928 (p. 67), combines this species with 

 M. asperum Richardson, with which it is very closely related. 



The type was obtained in Hawaiian waters. The typical form has 

 later been recorded from near Mauritius (Gilbert, 1906), and an 

 Atlantic subspecies ohtusirostre is mentioned by Taaning (1928). 



MYCTOPHUM CALIFORNIENSE Eigenmann and Eigenmann, 1889 



Myctophu))! californiense Jordan and Evermann, 



TowNSEND and Nichols. 1925, Parr, 1928. 

 Myctophum humboldti (part) Brauer, 1906. 



1896; GiLBEiRT, 1913; 



Material investigated. Type specimen No. 41920, U.S.N.M. 

 From San Diego, California. 



The original description of M. californiense Eigenmann and 

 Eigenmann (1889, p. 124) has been very adequately supplemented 

 by Gilbert, 1913 (p. 78), the accompanying diagram of the type 

 specimen, however, represents the first illustration of the species. 



Figure 4. — Myctophum californiense Eigenmann and Eigenmann 



The eyes and the head were found to be slightly larger in the 

 type than in the specimen recorded by Gilbert, equaling 8.5 and 27 

 per cent, respectively, of the total without caudal fin, instead of 7.8 

 and 25 per cent of the same measurement. 

 Correctly defined in the previously rendered key.^^ 

 Type locality: San Diego, Cialifomia. Subsequently recorded 

 also from Japan (Gilbert, 1913). 



MYCTOPHUM EVERMANNI Gilbert, 1905 



Myctophum evermanni Brauer, 1906 ; Gilbert, 1908 and 1913 ; Weber, 1913, 

 Weber and Beaufort, 1913 ; Jordan and Jordan, 1922 ; Fowler, 1928 ; 

 Parb, 1928. 



Material investigated. Type specimen No. 51521, U.S.N.M. 

 From Hawaii. 



Adequately described and figured by Gilbert, 1905 (p. 597 and pi. 

 70, fig. 2). 



Correctly defined in the previously rendered key. 



u For "The last 3-4 posterior AO above the base A" (Parr. 1928, p. 64, point Z), read 

 " The first 3-4 posterior AO above the base A," 



