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Lophiiformes (Anglerfishes) >
Linophrynidae (Leftvents)
Etymology: Haplophryne: Greek, 'haplos' = single or simple + Greek, 'phryne' = toad (meaning "simple toad") (Ref. 86949).
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina batypelagisk; havsvandrande (Ref. 51243); djupintervall ? - 2250 m (Ref. 58018). Deep-water
Tropical and subtropical parts of all oceans. Four specimens are known from off Madeira.
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 15.9 cm SL hane/ej könsbestämd; (Ref. 58502); common length : 8.0 cm SL hane/ej könsbestämd; (Ref. 1468); common length :5 cm (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 3; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 3. Mature females are unpigmented and have a nearly rounded shape of body. There are spines above the eyes and behind the mouth. The illicium consists of a rounded flap without pole. Small numerous teeth in both jaws (Ref. 557). Free lining males are characterized by: having weak sphenotic spines, nearly absent; slender and angled preopercle; moderately elevated epiotic region of skull; well developed premaxillae; 20-24 teeth on each side of upper and lower jaws (Ref. 86949).
Body shape (shape guide): short and / or deep; Cross section: circular.
Also mesopelagic (Ref. 7300). A small deep-sea angler fish. Males dwarfed, becoming parasitic on females (Ref. 10762). An 8 cm female was found with 3 parasitic males of 18 mm length, attached to her ventral side. Adult (=parasitic) males are colorless with reduced teeth, jaws, and eyes. Information on the maximum length of female was taken from Ref. 10762.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Bertelsen, E., 1990. Linophrynidae. p. 516-519. In J. C. Quero, J. C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 10762)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 3.9 - 10.8, mean 6.6 °C (based on 1085 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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