Gigantactis longicirra Waterman, 1939
photo by Canadian Museum of Nature, Ottawa, Canada

Family:  Gigantactinidae (Whipnose anglers)
Max. size:  22.1 cm (female)
Environment:  bathypelagic; depth range 1000 - 2300 m
Distribution:  Atlantic and Pacific: tropical and temperate regions. A single male is known from the Gulf of Guinea.
Diagnosis:  Dorsal soft rays (total): 8-10; Anal soft rays: 6-8. Characterized by having relatively high number of dorsal fin rays 8-10; metamorphosed females characterized by: having 3 or fewer distal escal filaments, proximal anterolateral group of short filaments, and posterior proximal group of long filaments; first and last dorsal fin rays distinctly longer than intermediate rays; length of illicium less than 120%SL; escal bulb without distal prolongation or papillae; relatively long dentary, in five or six longitudinal series; prolonged first and eighth rays of caudal fin, 60-100%SL. Metamorphosed male: eyes small, diameter 0.45-0.5 mm; olfactory lamellae 11; upper denticular teeth 3; lower denticular teeth 4; skin naked, unpigmented. Larvae: lacking dorsal subdermal pigment (Ref. 86949).
Biology:  Also mesopelagic (Ref. 10761).
IUCN Red List Status: Least Concern (LC); Date assessed: 15 July 2014 Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Sa-a, Pascualita - 08.03.96
Modified by: Valdestamon, Roxanne Rei - 21.05.13

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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