JORDAN AND JORDAN: FISHES OF HAWAII. 13 



Nannobrachium Giinther. 



This genus is closely allied to Lampanydus Bonaparte, Nyctimaster being 

 distinguished by not having enlarged scales along the lateral line. It is distin- 

 guished from Nannobrachium by the very small pectorals of the latter. 



64. Nannobrachium nigrum Gimther. (G., p. 591.) 

 Pelagic, south to the Philippines. 



65. Nyctimaster reinhardti Jordan. 



(Cf. Proc. U. S. N. M., LIX, 1921, p. 645, fig. 2.) 



The three known specimens of this species were killed in a lava-flow from 

 Mauna Loa into deep water off the southwestern coast of Hawaii. 



Order APODES (Eels). 



Family XXVIII. SYNAPHOBRANCHID^. 



Synaphobranchus Johnson. 



66. Synaphobranchus brachysomus Gilbert. (G., p. 583.) 

 Deep sea. 



Family XXIX. LEPTOCEPHALID^. 



(Congridce.) 



Leptocephalus (Gronow) Scopoli. 



(rowgfcr Cuvier, adult form.) 



67. Leptocephalus marginatus (Valenciennes). Puhiuha. (J. & E., p. 76.) 



Common in crevice.s of lava-rock. 



68. Leptocephalus bowersi (Jenkins). (J. & E., p. 77.) 



Rather common. This species belongs to the subgenus Ariosoma Swainson 

 ( Congrellus Ogilby) characterized by the feebler organization and the rather more 

 advanced dorsal fin inserted over the gill-opening. As in Leptocephalus (sens, str.), 

 the teeth are all sharp. 



69. Leptocephalus aequoreus (Gilbert and Cramer). (G., p. 589; J. & E., p. 77.) 

 Deep sea. 



Veternio Snyder. 



70. Veternio verrens Snyder. (J. & E., p. 79.) 



One large example from Honolulu. 



Promyllantor Alcock. 



71. Promyllantor alcocki Gilbert and Cramer. (G., p. 584.) 

 Deep sea. 



