Common names from other countries
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Xenisthmidae (Collared wrigglers)
Etymology: Xenisthmus: Greek, xenos = strange + Greek, isthmos = throat, narrow passage (Ref. 45335).
More on authors: Gill & Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 2 - 17 m (Ref. 12713). Tropical
Western Indian Ocean: Arabian Gulf (Saudi Arabia) and the Red Sea (Eritrea, Egypt and Saudi Arabia).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.6 cm SL male/unsexed; (Ref. 12713); 3.1 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 13 - 14; Anal spines: 1; Anal soft rays: 12 - 13; Vertebrae: 26. This species is distinguished by the following set of characters: D VI + I,13 (rarely I,14); anterior rim of posterior nostril raised, without well-developed flap; mainly cycloid on body; head and body pale, with reticulate mottling dorsally (Ref. 115539).
Found on sand and rubble with small patches of mostly dead coral or at the base of a drop-off.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Gill, A.C. and J.E. Randall, 1994. Xenisthmus balius, a new species of fish from the Persian Gulf (Gobioidei: Xenisthmidae). Proc. Biol. Soc. Wash. 107(3):445-450. (Ref. 12713)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
115969): 25 - 28.9, mean 27.3 (based on 129 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [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).