Scientific Name
Diaphus signatus  
Pronounce  
 Diaphus signatus叉尾眶燈魚
by: Lab of Fish Ecol. and Evo., BRCAS
Author Gilbert, 1908 Depth 100 - 3884M
Chinese 叉尾眶燈魚 Poisonous Fish No 
Family_Chinese 燈籠魚科 Economic Fish No 
Family F200　Myctophidae Edible Fish No  Chinese In Mainland China 後光眶燈魚 
Max Length 4.8 cm  Aquarium Fish No  Common Name 燈籠魚、七星魚、光魚 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan East、South 
Habitats Deep Sea、Coastal  Holotype Locality Near Nukuhiva Island, Marquesas Group, depth 0-300 fathoms 
Synonyms  
Reference 臺灣魚類誌(沈等, 1993)；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)；中國動物誌-燈籠魚目(陳等, 2002)  沈世傑 編 Shih-Chieh Shen ed. 1993 Wang, J. T.-M. etc. 2001 Nakabo T. 2002 Nakabo T. 2002 陳素芝 編著 2002 
Specimen List ASIZP0057133. ASIZP0066718. ASIZP0066864. ASIZP0066975. FRIP03040. NMMBP00066. NMMBP04826.  
Common Name Lanternfish 
Redlist Status NL Not in IUCN Redlist     
Characteristic D. 15; A. 15, P. 11; G.R. 6 + 1 + 14. total 21; AO 6 (5-7) + 5-6, total 11-12 Operculum tapering posteriorly to a point at or just below PLO. Origin of dorsal fin somewhat behind base of ventral fin. Origin of dorsal fin somewhat behind base of ventral fin. Origin of anal fin about under end of base of dorsal fin. Pectoral fin not quite reaching base of ventral fin. Ventral fin extending to or somewhat beyond origin of anal fin. Base of adipose fin directly over or slightly behind end of base of anal fin. A roughly heart-shaped, anterolaterally directed Dn. Vn apparently continuous with Dn, becoming wider ventrally, just reaching anteroventral aspect of orbit in adults. Both organs distinctly larger and more massive in adult males than in females of comparable size. PLO midway between lateral line and base of pectoral fin or somewhat lower. Distance between VLO and base of ventral fin 1.5-2 times larger than that between it and lateral line. SAO on a straight or, more commonly, slightly angular line with SAO2 just behind straight line through centers of SAO1 and SAO3; SAO3 in advance of origin of anal fin and in contact with lateral line. AOa1 abruptly and highly elevated, lying directly over or, more often, distinctly behind (seldom slightly in front of) AOa2; AOa2-AOa3 interspace enlarged; last AOa elevated. Pol in advance of base of adipose fin, immediately below lateral line and often appearing continuous with AOa. AOp behind base of anal fin; last AOp often distinctly raised. Prc very widely spaced; Prc4 about its own diameter below lateral line. A roughly triangular luminous scale at PLO.
habitats Mesopelagic 
Distribution NULL 
Utility