South Africa country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, Bird Island, Algoa Bay, RU SI, 8548 (holotype of Mascarenichthys microphthalmus, 4 cm SL, male). Known from two specimens collected from Bird Island in the Algoa Bay (Ref. 76869).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Schwarzhans, W. and P.R. Møller, 2007
National Database:

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> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
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.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL mannelijk / geslacht onbekend; (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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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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. 130435)

Onvoldoende gegevens (DD) ; Date assessed: 16 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.6250 [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).

Trofisch niveau (Ref. 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Mascarenichthys microphthalmus Schwarzhans & Møller, 2007