Klassifizierung / Names
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Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Majungaichthys: Named for Majunga (Mahajanga) province of Madagascar, the type locality of the type species; simplex: Name from a Latin word meaning simple, refers to the simple pattern of the pseudoclaspers; noun in apposition.
More on authors: Schwarzhans & Møller.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser demersal. Tropical
Western Indian Ocean: Madagascar, and probably Mauritius.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 3.7 cm SL Männchen/unbestimmt; (Ref. 76869); 4.0 cm SL (female)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 71 - 75; Afterflossenweichstrahlen: 56 - 62; Wirbelzahl: 43 - 44. This species possess the following set of characters: anterior nostril low on snout, 1/4 the distance from upper lip to aggregate distance to anterior margin of eye; copulatory organ of male with 2 pairs of small pseudoclaspers, outer pseudoclasper simple, flap-like, and not much larger than simple flap-like inner pseudoclasper; small, size not much exceeding 4.0 cm SL; 12 precaudal vertebrae, 43-44 total vertebrae; D 71-79; V in D 1.9-2.1; scale patch on cheek only, none on operculum; presence of upper preopercular pore; otolith moderately elongate, its length to height 2.1-2.2, sulcus short with otolith length to sulcus length 1.9 and slightly inclined (5°), colliculi fused, sometimes incomplete with indication of distinction of ostial and caudal colliculi; maxilla expanded posteroventrally (Ref. 76869).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Schwarzhans, W. and P.R. Møller, 2007. Review of the Dinematichthyini (Teleostei: Bythitidae) of the Indo-west Pacific. Part III. Beaglichthys, Brosmolus, Monothrix and eight new genera with description of 20 new species. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 23:29-110. (Ref. 76869)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
Nutzung durch Menschen
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
