Halfbelt wriggler (Xenisthmus semicinctus)

Scientific name: Xenisthmus semicinctus Gill & Hoese, 2004

The Halfbelt wriggler (Xenisthmus semicinctus) is a marine fish of the family Xenisthmidae. Native range: Eastern Indian Ocean, Rowley Shoals, Western Australia.

Biology

Dorsal spines (total): 7; Dorsal soft rays (total): 12; Anal spines: 1; Anal soft rays: 11; Vertebrae: 27. A species of Xenisthmus with the following combination of characters: second dorsal-fin rays I,12; A I, 11; vertebrae 10 + 17; indented tongue; well-developed flap on anterior rim of posterior naris; 12 large, closely spaced spots on upper sides of body, each connecting dorsally to, or almost to, mid-line by short, brown to dark brown bar; predorsal area broadly scaled to just behind vertical through posterior edge of preopercle, with narrow median wedge of scales extending further forward almost to pore D.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Xenisthmus semicinctus
Family
Xenisthmidae (Collared wrigglers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
1.9
Depth range
1–2 m (3–7 ft)
Environment
Marine; reef-associated; depth range 1 - 2 m
Climate
Tropical
Distribution
Eastern Indian Ocean: Rowley Shoals, Western Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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