ART. 10 



NOTES ON MYCTOPHINE FISHES PAKR 



27 



LAMPANYCTUS CROCODILUS Risso, 1810 



Gastropelccus crocodilus llisso, 1810. 



Lampanyctus crocodilus Parr, 1928 (with earlier synonymy). 



Lampanyctus gemmifer Goode and Bean, 1895 ; Jordan and Eveemann, 1896. 



{Not Braxjer, 1906; Zugmayer, 1911; Pappenheim, 1914; Taaning, 



1928; and Pare, 1928.) 



Material investigated. Type specimen of Lampanyctus gemraifer, 

 Goode and Bean, No. 35604, U. S. N. M. Western Atlantic. 



An inspection of the above type specimen reveals the perfect 

 identity of Goode and Bean's species with the L. crocodilus already 

 described by Risso in 1910, as clearly shown on the accompanying 

 diagram. Three photophores are found on each cheek, in the ar- 

 rangement tyjDical of L. crocodilus and a luminous scale is present 

 in the adipose fin. 



Further discussion of the characters of the specimen is unneces- 

 sary with the very adequate descriptions of L. crocodilus already 



Figure 13. — Lampanyctus crocodilus Risso, drawn from thb type specimen of 

 Lampanyctus gemmifer Goodh and Bean 



available in the literature (Brauer, Holt and Byrne, Taaning; 

 see synonymy in Parr, 1928, p. 90). 



With L. germnifer thus eliminated as a separate species, however, 

 it now becomes necessary to designate a new name for the truly dis- 

 tinct taxonomic form currently identified with Goode and Bean's 

 nominal species. 



LAMPANYCTUS TAANINGI, new species 



Myctophum (Lampanyctus) gemmifer Beauek, 1906; Zugmayer, 1911; 



Pappenheim, 1914. 

 Lampanyctus gemmifer Taaning, 1928; Parr, 1928. 



Specimen No. 2301, of the Bingham Oceanographic Collection, 

 " Pawnee " Station 25, 1927, Exuma Sound, Bahamas, has been des- 

 ignated as the type. A paratype from the same haul has been de- 

 posited in the United States National Museum. 



The species is easily distinguished from the above L. crocodilus 

 Risso by the absence of luminous scales in the adipose fin and by the 

 presence of only two photophores on each cheek. 



