Teleostei (teleosts) >
Gobiiformes (Gobies) >
Xenisthmidae (Collared wrigglers)
Etymology: Xenisthmus: Greek, xenos = strange + Greek, isthmos = throat, narrow passage (Ref. 45335); semicinctus: Name from Latin 'semis' meaning half, and 'cinctum' for girdle or belt, refers to the dark markings on the dorsal part of the body; noun in apposition...
More on authors: Gill & Hoese.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 1 - 2 m (Ref. 59014). Tropical
Eastern Indian Ocean: Rowley Shoals, Western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL male/unsexed; (Ref. 59014)
Short description
Identification keys | Morphology | Morphometrics
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 (Ref. 59014).
A benthic, inshore species found in coral reefs (Ref. 75154).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Gill, A.C. and D.F. Hoese, 2004. Three new Australian species of the fish genus Xenisthmus (Gobioidei: Xenisthmidae). Rec. Aust. Mus.56(2):241-246. (Ref. 59014)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
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): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).