Kingdom Animalia  
 Phylum Chordata  
 Class Actinopterygii  
 Order Myctophiformes  
 Family Myctophidae  
 Genus Diaphus  
  Diaphus knappi  Nafpaktitis, 1978 
Provider: Ming-Chi Wang 
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Citation:
A review of lanternfishes( Families: Myctophidae and Neoscopelidae) and their distributions around Taiwan and Tungsha Islands with notes on seventeen new records(Wang and Chen, 2001)
Fishes of Japan(Nakabo, 2002)
Character: D. 15; A. 15P. 11; G.R. 6 + 1 + 13 total 20, AO 6 + 5, total 11. Operculum sharply pointed posteriorly. Origin of dorsal fin somewhat in advance of base of ventral fin. Origin of anal fin behind base of dorsal fin. Pectoral fin not reaching origin of anal fin. Base of adipose fin slightly in advance of end of base of anal fin. A roundish, forward-directed Dn, smaller than a body photophores. Vn at anteroventral aspect of eye, superficially connected with Dn by a thin streak of luminous tissue, tapering posteriorly to a point in front of vertical through anterior magin of pupil. Ant developed even in smallest specimen available. PLO somewhat nearer to lateral line than to base of pectoral fin. Distance between VLO and lateral line about 1.5 times as great as that between VLO and base of ventral fin. SAO on a straight, nearly vertical line; space between SAO2 and SAO3 about 1.5 times as great as that between SAO2 and SAO1; SAO3 in advance of origin of anal fin and immediately below lateral line. AOa1 1-1.5 times its diameter anterodorsad to AOa2; penultimeate AOa may be slightly raised, ultimate AOa elevated. Pol somewhat in advance of base of adipose fin and less than its own diameter below lateral line. First AOp over or just behind end of base of anal fin. Prc evenly spaced; Prc4 1.5-2 times its diameter below lateral line. A vertically elongated luminous scale at PLO. 
Habitat: Pseudoceanic species 
Distribution: Off eastern and southern Taiwan; From 300-600 m depth. West Pacific, western Indian Ocean. 
Name Code: 381200
  IUCN Red List:LC      Marine     
Suggested Link    The Fish Database of Taiwan  FishBase  Discover Life  World Register of Marine Species (WoRMS) 
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