Teleostei (teleosts) >
Gobiiformes (Gobies) >
Xenisthmidae (Collared wrigglers)
Etymology: Xenisthmus: Greek, xenos = strange + Greek, isthmos = throat, narrow passage (Ref. 45335); eirospilus: Name from the Greek 'eiro' meaning to join in lines or string together, and 'spilos' for spot or fleck, refers to the prominent pattern of closely spaced dark spots on the mid-side; noun in apposition..
More on authors: Gill & Hoese.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 35 m (Ref. 59014), usually 0 - 10 m (Ref. 90102). Tropical
Southwestern Pacific: Tasman Sea and the Solomons.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 59014); 2.1 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 12 - 13; Anal spines: 1; Anal soft rays: 11 - 12; Vertebrae: 27. This species is characterized by the following: second dorsal-fin rays I, 12-13 (usually I, 12); A I, 11-12 (usually I, 11); vertebrae 10 + 17; indented tongue; posterior naris with well-developed flap on anterior rim; upper sides of the body with 12 large, closely spaced spots, these usually do not extend to dorsal edge of body; predorsal area broadly scaled to about vertical through posterior edge of preopercle (Ref. 59014).
A benthic, inshore species found in coral reefs (Ref. 75154). Also found in sand patches among reefs and rubble, often in surge areas (Ref 90102).
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
Preferred temperature (Ref.
123201): 23.5 - 29.3, mean 28.2 °C (based on 1855 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).