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Astronesthes richardsoni  (Poey, 1852)

Richardson's snaggletooth
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Native range | All suitable habitat | PointMap | Year 2100
This map was computer-generated and has not yet been reviewed.
Astronesthes richardsoni   AquaMaps   Data sources: GBIF OBIS
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Image of Astronesthes richardsoni (Richardson
Astronesthes richardsoni
Picture by Reiner, F.

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) > Astronesthinae
Etymology: Astronesthes: Greek, astra = ray + Greek, esthes, -es = suit, something used to wrap (Ref. 45335).

Environment / Climate / Range Ecology

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 275 - 1000 m (Ref. 58426).   Deep-water; 20°N - 26°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.9 cm SL male/unsexed; (Ref. 4465)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 15-17; Anal soft rays: 12 - 15. Barbel without pigment, tapering to end, lacking swelling or bulb (Ref. 37473). Body moderately elongate and slender. Maxillary teeth closely spaced. Serial photophores not broken into small groups. Luminous patches present on margin of operculum. Black in color (Ref. 37039).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Atlantic: Mauritania south to Angola; reported from central Namibia (Ref. 27121). Western Atlantic: Gulf of Mexico and Bahamas area; and across the Atlantic (20°N-10°S). One specimen known from the southwest Atlantic (25°27'S, 35°56'W).

Biology     Glossary (e.g. epibenthic)

Oceanic, usually living deeper than 500 m during the day. Smaller individuals migrate to the surface at night. Possibly feeding on crustaceans and fishes (Ref. 58426). Minimum depth from Ref. 58018.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Gibbs, R.H. Jr., 1990. Astronesthidae. p. 300-307. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris and UNESCO, Paris. Vol. 1. (Ref. 4465)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00126 - 0.00915), b=3.10 (2.87 - 3.33), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.9   ±0.64 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100) .