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) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); coffea: Named for the shape of the terminal barbel bulb which resembles a coffee bean (Ref. 87305).
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic. Tropical; 31°N - 8°S, 119°E - 169°W
Pacific Ocean: Central Equatorial, Central North and Western Pacific (near Luzon Island, Philippines).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.9 cm SL male/unsexed; (Ref. 87305)
Morphology | Morphometrics
soft rays: 15 - 17. This species is a member of the subgenus Photonectes and is distinguished by the following set of characters: dorsal- and anal-fin rays not covered with black fleshy skin; pectoral fins absent; pelvic fins inserted closer to the caudal-fin base; IV photophores 37-39; and IP photophores begin halfway posteriorly on the isthmus. Within the subgenus, Photonectes coffea differs from P. achirus, P. caerulescens, and P. mirabilis by blue luminous tissue absent (vs. present); differs from P. phyllopogon by dorsal-fin rays 12-13 (vs. 20-23) and IV photophores 38-39 (vs. 30-31); differs from P. corynodes by an elongate barbel with filamentous terminal barbel (vs. short barbel with bifid terminal barbel) and one white luminous shoulder spot (vs. none); differs from P. barnetti and P. albipennis by barbel with two bulbs (vs. one) and gill-filament length on first branchial arch very long, extending beyond opercular opening (vs. reduced or normal, not extending beyond opercular opening) (Ref. 87305).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Klepadlo, C., 2011. Three new species of the genus Photonectes (Teleostei: Stomiiformes: Stomiidae: Melanostomiinae) from the Pacific Ocean. Copeia 2011(2):201-210. (Ref. 87305)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [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
): 3.9 ±0.7 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 (25 of 100) .