Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake.
Eponymy: Dr Alan Reece Longhurst (d: 1925) is a British-born Canadian oceanographer, zoologist and marine biologist. [...] (Ref. 128868), visit book page.
More on author: Cohen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 5 - 11 m (Ref. 34024). Tropical
Eastern Atlantic: northern coast of the Gulf of Guinea.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.6 cm SL male/unsexed; (Ref. 6526)
Rare species, found on soft bottom (Ref. 34024). Viviparous (Ref. 6526).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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