Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Eleotridae
(Bully sleepers) > Xenisthminae
Etymology: Xenisthmus: Greek, xenos = strange + Greek, isthmos = throat, narrow passage (Ref. 45335); oligoporus: Name from Greek 'oligos' for few and 'poros' for hole; referring to the relatively low number of sensory pores on the head; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 6 - 13 m (Ref. 115539). Tropical
Western Indian Ocean: Red Sea, Saudi Arabia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 115539); 2.5 cm SL (female)
Morphology | Morphometrics
soft rays: 13 - 14;
Vertebrae: 26. This species is distinguished from it congeners in having a reduced number of cephalic
sensory pores (without A, I, J, K, P and Q pores) and in having 14-15 segmented rays in the second dorsal fin (Ref. 115539).
Found in sandy areas (Ref. 115539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gill, A.C., S.V. Bogorodsky and A.O. Mal, 2017. Review of Red Sea Xenisthmus Snyder, (Teleostei: Gobioidei: Xenisthmidae), with description of a new species. Zootaxa 4286(2):203-214. (Ref. 115539)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 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 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .