Xenisthmus polyzonatus, Bullseye wriggler

Xenisthmus polyzonatus (Klunzinger, 1871)

Bullseye wriggler
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Xenisthmus polyzonatus   AquaMaps   Data sources: GBIF OBIS
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Image of Xenisthmus polyzonatus (Bullseye wriggler)
Xenisthmus polyzonatus
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Xenisthmidae (Collared wrigglers)
Etymology: Xenisthmus: Greek, xenos = strange + Greek, isthmos = throat, narrow passage (Ref. 45335).
More on author: Klunzinger.

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

Marine; reef-associated; depth range 9 - 24 m (Ref. 90102). Tropical

Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: from the Red Sea and East Africa to French Polynesia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 3.1 cm TL male/unsexed; (Ref. 90102)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 11 - 12; Anal spines: 1; Anal soft rays: 10 - 11; Vertebrae: 26. This species is distinguished by the following character: D2 usually I,11 (rarely I,12); A I,10-11; tongue rounded to truncate; posterior nostril with well-developed anterior flap (Ref. 115539).


Body shape (shape guide): elongated; Cross section: oval.

Biology     Glossary (e.g. epibenthic)

A benthic, inshore species, on the sandy fringe of coral reefs (Ref. 75154). Also found in rubble in lagoons and sheltered waters in 9-24 m (Ref 90102) and crevices close to the base of fringing reefs in the depth range of 1.5-16 m (Ref. 115539).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 12 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
Food consumption
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
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References

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5010 [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).
Trophic level
(Ref. 69278) 		3.1   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability
(Ref. 59153) 		Low vulnerability (10 of 100). 🛈
Nutrients
(Ref. 124155) 		Calcium = 232 [95, 449] mg/100g; Iron = 0.865 [0.447, 1.661] mg/100g; Protein = 17.9 [16.7, 19.1] %; Omega3 = 0.116 [0.054, 0.238] g/100g; Selenium = 17.7 [6.2, 46.6] μg/100g; VitaminA = 363 [95, 1,412] μg/100g; Zinc = 2.98 [1.80, 4.60] mg/100g (wet weight);