Phylum Chordata
> Subphylum Vertebrata > fishes |
Sand-divers
Family Trichonotidae
updated
Nov 2020
Where
seen? These long, beautifully patterned fishes
are sometimes seen in sandy areas near living reefs. It is said that they hover in small groups above the sand. When threatened,
they dive into the sand. Hence their common name.
What are sand-divers? Sand-divers
belong to Family Trichonotidae. According to FishBase:
the family has one genera (Trichonotus) with 6 species.
Features: To 15-18cm, those seen much shorter, about 8-10cm. These fishes have
a long and slender body, somewhat flattened sideways. The pointed
snout had a lower jaw that is longer than the upper jaw. Some have fine
gold 'eyelashes' over large eyes. The male fish has long filamentous
extensions on his dorsal fin. |
Sisters Island, Jul 04 |
Sisters Island, Jul 04 |
Underside of a dead fish.
Cyrene Reef, May 11
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Lower jaw slightly longer, Fine gold 'eyelashes'.
Cyrene Reef, May 11 |
Sand-divers
on Singapore shores |
Other sightings on Singapore shores |
Changi East (Lost Coast), Jun 22
Photo shared by Dayna Cheah on facebook.
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Changi East (Lost Coast), Jul 24
Photo shared by Richard Kuah on facebook.
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East Coast Park Sailing Centre, May 21 |
Photo shared by Toh Chay Hoon on facebook. |
East Coast Park Sailing Centre, May 24
Photo shared by Tommy Tan on facebook.
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Photo shared by Toh Chay Hoon on facebook. |
East Coast Park, Jul 15 |
Links
References
- Tan Heok Hui & Leo H. S. Nguang. 25 Jan 2017. Spotted sand-diver, Trichonotus setiger, at Changi. Singapore Biodiversity Records 2017: 10.
- Allen, Gerry,
2000. Marine
Fishes of South-East Asia: A Field Guide for Anglers and Divers.
Periplus Editions. 292 pp.
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