1013 . 
Genus Lionurus Gflnther 
Lionurus Gflnther , Rep. Voy. Challenger, vol. 22, pp. 124, 141, 1887. 
(Type Coryphaenoides ( Lionurus ) fillcauda Gflnther, designated by 
Jordan, Genera of Pishes, pt. 4, p. 437, 1920.) 
Nezumia Jordan, in Jordan and Starks, Bull. U. S. Fish Comm., vol. 22, 
p. 620, 1902 (A^i. 1904). (Type Nezumia oondylura J ordan and Gil¬ 
bert, monotypic.) 
Body usually slender, tail not rapidly tapering. Head not 
very massive. Snout moderately extended, not greatly widened or high. 
Bones of head firm, sensory canals moderately developed and skull 
without high crests. Gill rakers less than 15 on lower limb of second 
arch. Branohiostegals 7. Scales small, well imbricated, spinules 
usually directed backward. Dorsal spine (second simple ray) trenchant 
on front edge, usually serrate. Vent distinct from anal fin, preceded 
by naked area. 
A large genus of tropical or subtropical seas. Size usually 
small, less than 400 mm in length. 
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