Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Malacosteinae
Etymology: Photostomias: Greek, photos = light + greek, stoma = mouth (Ref. 45335); liemi: Named for Karel F. Liem, Museum of Comparative Zoology, Harvard University.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 4000 m (Ref. 80463). Tropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Indo-Pacific: tropical, scattered records off the Indo-Malaysian, Japanese,
Philippine, and Hawaiian archipelagos, and Eastern Indian Ocean, Java, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.3 cm SL male/unsexed; (Ref. 80463)
Morphology | Morphometrics
Males and females of this species differ from its congeners with the exception of females of P. atrox, by having the following set of characters: postorbital photophore (PO) of moderate size, 21.0-25.3% upper jaw length (UJL), in males greater than 60 mm (vs. PO small, 12.1-20.0% UJL in P. tantillux; large, 26.8-46.6% UJL, in P. atrox and P. lucingens); accessory orbital (AO) of moderate size, 4.9-8.3% UJL, in males greater than 60 mm (vs. AO small, 2.4-4.7% UJL, in P. lucingens); three tooth patches at posterior end of the first, second, and third basibranchials (vs. two basibranchials tooth patches in P. guernei); total of dorsal- and anal-fin rays 49-53, rarely 55 (vs. 57-63, rarely 56, in P. goodyeari); females mature at approximately 100 mm (vs. less than 70 mm in P. tantillux and P. lucingens). Females of P. liemi can not be distinguished from those of P. atrox (Ref. 80463).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kenaley, C.P., 2009. Revision of Indo-Pacific species of the loosejaw dragonfish genus Photostomias (Teleostei: Stomiidae: Malacosteinae). Copeia 2009(1):175-189. (Ref. 80463)
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
Preferred temperature (Ref. 115969
): 3.3 - 6.5, mean 4.6 (based on 96 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00165 - 0.01051), b=3.11 (2.88 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.7 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 (24 of 100) .