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Mascarenichthys microphthalmus Schwarzhans & Møller, 2007

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Mascarenichthys microphthalmus
Male picture by W. Schwarzhans & P. R. Møller

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Actinopterygii (Straalvinnigen) > Ophidiiformes (Cusk eels) > Bythitidae (Viviparous brotulas) > Brosmophycinae
Etymology: Mascarenichthys: Named in reference to the Mascarene plate, from where most of the specimens observed so far have been obtained.;  microphthalmus: Name from Greek words 'micros' for small and 'ophthalmos' for eye), refers to the small eye size of this species; noun in apposition.  More on authors: Schwarzhans & Møller.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien benthopelagisch.   Temperate

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Southeast Atlantic: South Africa.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL mannelijk/geslacht niet bekend; (Ref. 76869)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 67-69; Anale zachte stralen: 52 - 55; Wervels: 40 - 41. This species possess the following distinguishing characters: D 67-69, A 52-55, pectoral fin rays 19, D/A is 19-22, V in D 2.0; vertebrae 11+29-30 = 40-41; anterior nostril located 1/4 the distance from upper lip to aggregate distance to anterior margin of eye; small eyes, 0.8-1.2 % SL; 2 pairs of free pseudoclaspers, the outer pseudoclasper simple, flap-shaped with pointed tip, broad at base, short, slightly shorter than inner pseudoclasper which is broad, with 3 ridges in anterior, posterior and inward directions and hidden in pocket of wide isthmus (in resting position); 6 scale rows on cheeks on upper part and 3 rows on lower part; presence of upper preopercular pore (Ref. 76869).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 120744)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00174 - 0.01147), 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
Weerstandsvermogen (Ref. 69278):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Low vulnerability (10 of 100) .