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Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); altidorsalis: Name from Latin 'altus' meaning high and 'dorsalis' meaning neck, referring to its high-necked profile.
More on authors: Schwarzhans, Møller & Nielsen.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; djupintervall 15 - 20 m (Ref. 57884). Tropical
Utbredning
Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri
Western Pacific: Indonesia, New Guinea, Sabah to the Solomons, including Sta. Cruz Islands.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 10.2 cm SL hane/ej könsbestämd; (Ref. 57884)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 76 - 85; Mjukstrålar i analfenan: 59 - 68; Ryggkotor: 43 - 45. Diagnosis: Vertebrae 11+32-34=43-45, dorsal fin rays 76-85, anal fin rays 59-68; eyes large (at least 2.5% SL); outer pseudoclasper large, broad, ear-lobe shaped; inner pseudoclasper a fleshy appendix at the anterior-inner rim of the outer pseudoclasper, without supporter; large scale patch on operculum above opercular spine (6–9 scales) and 1 to 3 isolated scales below opercular spine; head profile strongly ‘high-necked / hump-backed’; color yellow in live specimens (Ref. 57884).
Body shape (shape guide): elongated; Cross section: compressed.
Large dominating individuals were observed to make attacks toward smaller fish, which were hiding below rocks or any other shelter provided. One male was observed to flip backward the cover of the copulatory organ so that the organ can be exposed while swimming (Ref. 57884). Solitary inhabitant of coral reef crevices to at least 20m depth, cryptic (Ref 90102).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 27.9 - 29.3, mean 28.8 °C (based on 1452 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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