590 
Genus Lyeonus GUnther 
Lyconus GUNTHER, Rep. Voy. Challenger, yol. 22, p. 158, 1887. 
(Type Lyconus pinnatus GUNTHER, monotypic.) 
Body compressed, with trunk long as or longer than head and 
ending in long, compressed, tapering tail. Head compressed, small. Snout 
short. Eye large. Mouth cleft wide, terminal. No mandibular barbel. 
Both jaws with series of wide set unequal teeth, 2 in front above, canine 
like, though not so large as lower teeth. Vomer with single canine tooth 
each side. Head with thin bones. Gill membranes not united. Gills 4. 
Pseudobranchiae present. Branchiostegals 7. Scales very small, cycloid, 
deciduous. Bones of head with narrow muciferous channels, except on top 
between eyes. Continuous dorsal fin on back to end of tail, some anterior 
rays prolonged. Anal long, extends from vent to end of tail. No caudal. 
Pectorals long, slender. Ventrals thoracic, moderate. 
Lyconus pinnatus GUnther 
Lyconus pinnatus GUNTHER, Rep. Voy. Challenger, vol. 22, p. 158, 
pi. 42, fig. C, 1887 (type locality: South Atlantic in mid ocean). 
—GOODE and BEAN, Oceanic Ichth., p. 425, 1895 (copied). 
—MRAUER, Deutsch. Tiefsee Exped. Valdivia , vol. 15, p. 392, 
| 
1906 (reference)* —‘GILBERT and HTJBBS, Proc. U* S# Nat* Mus*, 
toI* 51 5 p* 143, 1916 (name)* 
