ART. 10 NOTES ON MYCTOPHINE FISHES PAER 9 



andreae rendered by Liitken, 1892 (p. 245,«) and the author can there- 

 fore see no reason for maintaining the former as a separate species. 

 In the previously rendered key to the genus Myctophum (Parr, 

 1928, p. 62) M. andreae has become identified with M. nigro-oceUatiim 

 Giinther through an unfortunate misinterpretation of a note upon 

 these two species rendered by Taaning 1928 (p. 55), for which the 

 author must apologize. M. andreae and M. nigro-oceUatum are easily 

 differentiable from each other by the characters mentioned in the 

 following supj)lementary key.^ 



I. First (lower) SAO above third VO. AO 4-7 + 8-12 " M. nigro- 

 ocellatum Giinther 1889. 



II. First (lower) SAO above fourth VO. AO 6 + 11. M. andreae 

 Liitken 1892, 



The synonymy of M. nigro-ocellatum should then read : 



Scopelus nigro-ocellatus Guntheb, 1889. 



Myctophum nigro-ocellatum Taaning, 1928; Parr, 1928 (part). 



Centrohranchns clioerocephalus Fowler, 1903 and 1928 ; Gilbeiit 1905, 1908, 



and 1913 ; Jordan and Jordan, 1928. 

 Myctophum (Myctophum) coccoi forma regularis Brauee, 1904. 

 Myctophum (Myctophum) choerocephalum Brauek, 1906. 



A good illustration of M. andreae has been rendered by Gilbert 

 1905 (pi. 69, fig. 2) {'•'- C entrabranchus gracilicaudus ^^) , who also 

 shows a specimen of M. nigro-ocellatum (" G entrohranchus choero- 

 cephaliLS ") on the same plate (fig. 1.). 



M. a/ndreae is known from the Indian and Atlantic oceans, and, as 

 C entrohranchus gracilicaudus, from the Hawaiian waters and from 

 Japan. 



MYCTOPHUM PRISTILEPIS Gilbert and Cramer, 1897 



Dasyscopelus pristilepis Gilbekt and Cramer, 1897. 

 Myctophum pristilepis Parr, 1928 (full synonymy). 



Material investigated. Type specimen No. 47737, U.S.N.M. 

 From Hawaii. 



The original description and figure of this species (Gilbert and 

 Cramer, 1897, p. 412 and pi. 39, fig. 1) has been supplemented by 

 Gilbert, 1906 (p. 259 and pi. 3), with a very accurate illustration and 

 a detailed discussion of its characters, to which the author has noth- 

 ing to add. The species has been correctly defined in the previously 



8 Liitken's figure shows the SAO equally spaced, but this feature probably is due to 

 inaccuracy in the drawing and is not mentioned in the text. In the type of gradlicaudus 

 the middle SAO Is distinctly nearer to the lower than to the upper organ of the same 

 series. 



•To be used for subdivision of point gg in the previously rendered key (Parr, 1928, 

 p. 62). 



"5-7 + 9-12, according to Gilbert, 1905, p. 594 (" Centrobranchiis gracilicaudus") ; 

 4-5 + 8-9 according to Taaning, 1928, p. 55. 



64440—29 2 



