Chaenophryne longiceps Regan, 1925
Can-opener smoothdream
Chaenophryne longiceps
photo by Dolgov, A.

Family:  Oneirodidae (Dreamers)
Max. size:  24.5 cm SL (male/unsexed); 20.7 cm TL (female)
Environment:  bathypelagic; marine; depth range 500 - 1000 m
Distribution:  Tropical to temperate parts of all oceans. Northeast Pacific: south of southern California to Oregon, USA (Ref. 265).
Diagnosis:  Dorsal soft rays (total): 6-8; Anal soft rays: 5-6. Distinguishing characteristics of metamorphosed female: esca with a pair of elongate internally pigmented and bilaterally placed anterior appendages, less than one-tenth to greater than length of escal bulb; smaller ratio between number of upper and lower jaw teeth, 0.70-0.94; total number of teeth in upper jaw teeth 28-40, lower jaw 34-57 teeth; vomerine teeth 4-8; length of illicium 22.4-40.3% SL; escal bulb width 5.3-11.4% SL; has fewer dorsal and anal fin rays than C.ramifera, and greater number of pectoral fin rays than all other species of the genus (Ref. 86949).
Biology:  Bathypelagic (Ref. 58426). Also mesopelagic. Males dwarfed, non-parasitic (Ref. 10524). Feeds on fishes, cephalopods and crustaceans (Ref. 58426).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 February 2009 Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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