Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Astronesthinae
Etymology: Eupogonesthes: Greek, eu = good + Greek, pogon = beard + Greek, esthes, -etos = cloth (Ref. 45335); xenicus: From the unique structure of the chin barbel and the intermediate position of the species between the genera Borostomias and Astronesthes ('xenos' = foreign, exotic).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 200 - 600 m (Ref. 75891). Deep-water
Eastern Indian Ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.4 cm SL male/unsexed; (Ref. 41472)
Morphology | Morphometrics
soft rays: 16;
Vertebrae: 54. Body brown black; paired caudal fins not pigmented; dorsal and anal fins pigmented; adipose fin brilliant black. Chin barbel long, almost twice as long as the head, tapering to the end; with 2 glandular bulbs, the anterior one appearing as spindle-shaped expansion of the shaft which begins just behind the articulation with the chin and occupies nearly 1/3 of the length of the barbel; posterior bulb like a terminal proboscis of the barbel (Ref. 41472).
Found on the continental slope (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Parin, N.V. and O.D. Borodulina, 1993. A new mesobenthic fish, Eupogonesthes xenicus (Astronesthidae), from the eastern Indian Ocean. J. Ichthyol. 33(8):111-116. (Ref. 41472)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 10.3 - 14.6, mean 11.8 (based on 21 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00147 - 0.00985), b=3.10 (2.87 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .