Phylum Chordata
> Subphylum Vertebrate > fishes |
Yellow
cuskeel
Dinematichthys iluocoeteoides
Family Bythitidae
updated Sep 2020
Where
seen? This odd little eel-like fish is sometimes seen on
some of our shores, usually near reefs at night. It was previously
listed under Family Brotulidae and thus sometimes still referred to
as brotulids. Another species, the Riau viviparous brotula (Ungusurculus riauensis) looks very similar.
Features: 4-7cm long, can grow to 12cm. Body long flattened, head rounded with tiny eyes. It has a pair of long filaments under its head, but this is hard to see this in a live fish in the
wild. It has scales on body, cheeks and gill covers. Tail fin tiny and is separated from the long dorsal and anal fins. Colour usually orangey pink.
Baby cuskeels: Eggs develop inside the mother
and she gives birth to live young (ovoviviparous). Embryos are retained in the ovaries until about 6 mm long, getting their nourishment from large yolk sacs.
Sometimes mistaken for other eel-like
fishes. Here's more on how
to tell apart sea snakes, eels and eel-like animals. |
Labrador, May 06 |
Sisters Island, Jul 07 |
Tiny tail fin
separated from
long dorsal and anal fins. |
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Yellow
cuskeels on Singapore shores |
Other sightings on Singapore shores |
Pulau Sekudu,
Jun 14
Photo shared by Loh Kok Sheng on flickr.
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Pulau Sekudu,
Jul 20
Photo shared by Loh Kok Sheng on facebook. |
Small Sisters Island, Jul 23
Photo shared by Marcus Ng on facebook. |
Cyrene, Sep 20
Photo shared by Jianlin Liu on facebook.
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Terumbu Bemban, May 21
Photo shared by Russel Low on facebook. |
Pulau Salu, Apr 21
Photo shared by Loh Kok Sheng on facebook.
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Family
Bythitidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
+Other additions (Singapore Biodiversity Record, etc)
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Dinematichthys
iluocoeteoides
+Ungusurculus riauensi
(Riau viviparous brotula) |
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Links
References
- Marcus F. C. Ng & Toh Chay Hoon. 20 June 2014. Riau viviparous brotula at Pulau Sekudu, Ungusurculus riauensi. Singapore Biodiversity Records 2014: 172
- Wee Y.C.
and Peter K. L. Ng. 1994. A First Look at Biodiversity in Singapore.
National Council on the Environment. 163pp.
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