Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Xenisthmidae (Collared wrigglers)
Etymology: Gymnoxenisthmus: Name from Greek 'gymnos' meaning bare or naked, and the gobioid genus Xenisthmus; refers to the absence of scales on the body.; tigrellus: Name a Latin word meaning a little tiger; referring to the orange bars on the body (selected by school children at the Australian Museum Science Festival Expo in August 2013)..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range 8 - 10 m (Ref. 94949). Tropical
Western Indian Ocean: Red Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6; Dorsal soft rays (total): 13; Anal spines: 1; Anal soft rays: 12; Vertebrae: 26. This species is distinguished by the following set of characters: no head pores; no scales; D1 V; dorsal- and anal-fin rays branched and at least some pectoral-fin rays are branched; pelvic fin with a spine and five unbranched rays (Ref. 94949).
Collected from a narrow reef flat, the sandy slope with patches of corals and a rocky wall of about 3 m with small caves and shelters, and the slope began at depths of 8-10 m. The holotype was captured on sand at the base of coral at a depth of 8 meters (Ref. 94949).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Gill, A.C., S.V. Bogorodsky and A.O. Mal, 2014. Gymnoxenisthmus tigrellus, new genus and species of gobioid fish from the Red Sea (gobioidei: Xenisthmidae). Zootaxa 3755(5):491-495. (Ref. 94949)
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 = 1.0000 [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).