Oneirodes kreffti Pietsch, 1974
Krefft's dreamer
photo by SFSA

Family:  Oneirodidae (Dreamers)
Max. size:  11.1 cm SL (male/unsexed)
Environment:  bathypelagic; marine; depth range 0 - 2000 m
Distribution:  Circumglobal, southern latitudes of SE Atlantic, Indian and Western Pacific ocean; northernmost record off Port Hedland, Western Australia , at about 18°S; southernmost record on the Pacific side of the South I. of New Zealand, about 45°S.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 5-6; Anal spines: 0-0; Anal soft rays: 4-4. Characterized by having escal morphology: pair of highly branched medial escal appendages, in combination with an elongate cylindrical lateral escal appendage on each side; well-developed lateral escal appendage; esca with a pair of stout, medial appendages; more globose form, having a deeper and longer head and a longer lower jaw than O.anisacanthus; short subopercle, dorsal end rounded or tapering to a point, without indentation on posterodorsal margin; length of ventral fork of opercle 28.6-31.9% SL; ratio of lengths of dorsal and ventral forks of opercle 0.47-0.53; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 16-55; lower jaw teeth 24-50; teeth on vomer 4-8; dorsal fin rays 5-6; anal fin rays 4; pectoral fin rays 16-18; head length 38.6-64.3% SL; head depth 43.9-50.5% SL; length of premaxilla 30.7-35.5% SL; length of lower jaw 45.5-52.3% SL; illicial length 22.3-27.3% SL (Ref. 86949).
Biology:  Mesopelagic species (Ref. 7300, 75154). Most specimens taken in depths less than 1000 m with bottom trawls (Ref. 86949). Maximum depth reported in Ref. 10977. No male specimens are known.
IUCN Red List Status: Least Concern (LC); Date assessed: 11 October 2018 Ref. (130435)
Threat to humans:  harmless


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