Scientific Name
Poromitra crassiceps  
Poromitra crassiceps厚頭犀孔鯛
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Günther, 1878) Depth 600 - 3300M
Chinese 厚頭犀孔鯛 Poisonous Fish No 
Family_Chinese 孔頭鯛科 Economic Fish No 
Family F267 Melamphaidae Edible Fish No  Chinese In Mainland China 厚頭犀孔鯛 
Max Length 18 cm  Aquarium Fish No  Common Name 孔頭鯛 
Distribution in World global   Distribution in Taiwan North East 
Habitats Deep Sea  Holotype Locality Mid-Atlantic, Challenger station 107; off Pernambuco, Brazil, Challenger station 107 or 120; and Antarctic Ocean, depth 675-1500 fathoms 
Synonyms Melamphaes crassiceps, Melamphaes unicornis, Scopelus crassiceps   
Reference The Live Marine Resources of the Western Central Pacific, Vol.4(FAO,1999);Fishes of Japan(Nakabo, 2002);東海深海魚類(朱等,1986)  Günther, A. 1878 Carpenter, K. E. etc. 1999 Nakabo T. 2002 Nakabo T. 2002 
Specimen List ASIZP0059787. ASIZP0059954. ASIZP0063272. ASIZP0066297. ASIZP0070635. ASIZP0801508. ASIZP0911508. FRIP03009. NMNSF00548.  
Barcode2008-03-24,Kui-Ching Hsu,CO1,100%
Common Name Crested bigscale; Crested melamphid; Ridgehead 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body elongate, subcylindrical. Head large; Crest-likeridges of head with serrate margins; internarial spine present. Eyes moderately large, shorter than snout length; eye diameter more than 1/2 suborbital width. Snout short and steep. Jaws long, extending to posterior margin of eye. Teeth minute, uniserial row in upper jaw; palate toothless. Posterior margin of preopercle serrated. One dorsal fin with III weak spines and 12 to 14 soft rays; anal fin with I weak spine and 9 or 10 soft rays; caudal fin with 3 or 4 procurrent spines preceding upper and lower lobes; pelvic fins thoracic, with I spine and 7 soft rays; pectoral fins with 13 to 14 rays. Scales thin and cycloid, usually deciduous, moderate-sized to very large, 28 to 31 in longitudinal series. No photophores or light organs. Body and head dark brown or black.
habitats Found below 750 m during the day, shallower at night. Adults feed on small crustaceans. There is significant morphological variation between populations. Oviparous, with planktonic eggs and larvae. 
Distribution Worldwide except Arctic and Mediterranean seas. It is mainly found in northeastern Taiwanese waters. 
Utility No commercial value.