Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Aulopiformes
(Grinners) > Paralepididae
Etymology: Uncisudis: Latin, uncus = hook + Latin, sudis = esox, fish of the Rhine, cited by Plinius 9.15; it also means "stake" (Ref. 45335); posteropelvis: Name refers to the posteriorly located pelvic fins.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic. Deep-water
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western North Pacific: widely known from the tropical to subtropical ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 52915)
Morphology | Morphometrics
Diagnosis: Insertion of pelvic fins far behind dorsal fin base, closer to origin of anal fin than to posterior end of dorsal fin base. Dorsal and pelvic fin rays remarkably elongate and filamentous. Prepelvic length 69.4-71.5% SL; distance between anus and origin of anal fin short, 4.2-6.1% SL. Dorsal fin rays 10; anal fin rays 28-29. Myomeres 41-42 + 38-40 = 80-81; peritoneal pigment spots 11-12. Pigment spots absent posterior to dorsal fin on body dorsal line, on caudal peduncle, on dorsal, anal, and pelvic fin rays. Vertebrae 38 + 41 = 79.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fukui, A. and T. Ozawa, 2004. Uncisudis posteropelvis, a new species of barracudina (Aulopiformes: Paralepididae) from the western North Pacific Ocean. Ichthyol. Res. 51:289-294. (Ref. 52915)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.5 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 (10 of 100) .