942 . 
Genus Hymenoeephalus Giglioli 
Hymenoeephalus Giglioli , Pelagos. Sagg. Prod* Mar* Genova, p* 228, 1884* 
(type Hym enoeephalus italicus Giglioli, monotypic.) 
Mystaconurus Gflnther , Rep. Voy. Challenger , vol. 22, p. 124, 1887. 
(Type Mystaconurus longibarhis Gflnther, designated by Jordan, Genera 
of Fishes, pt. 4, p. 437, 1920.) 
Hymenogadus Gilbert and Hubbs , Bull* U. S. N a t. Mus., No. 100, vol. 1, 
p. (520) 521, 1920. (Type Hymenoeephalus gracilis Gilbert and Hubbs, 
orthotypio.) 
Papyrocephalus Gilbert ahd Hubbs, Bull. U. S. Nat. Mus., No. 100, vol. 
1, p. (521) 539, 1920. (lype Hymenoeephalus aterrimus Gilbert, 
orthotypie.) 
