|http://www.fishbase.org/Summary/speciesSummary.php?genusname=Chiasmodon&speciesname=niger ---> https://www.fishbase.se/Summary/speciesSummary.php?genusname=Chiasmodon&speciesname=niger|
https://www.fishbase.se/Summary/speciesSummary.php?genusname=Chiasmodon&speciesname=niger ---> https://www.fishbase.se/summary/Chiasmodon-niger.html
Chiasmodon niger, Black swallower
Add your observation in
Common name (e.g. trout)
Genus + Species (e.g. Gadus morhua)
Román Marcote, E.
Actinopteri (ray-finned fishes) >
Name from the Greek 'chiasmos' which means diagonally arranged, and 'odous' for tooth or teeth.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range 700 - 2745 m (Ref.
), usually 750 - ? m (Ref.
). Deep-water; 46°N - 5°S, 95°W - 5°E (Ref.
North Atlantic: tropical and temperate; including Gulf of Mexico, from 95°W to 5°E, 46°N to 5°S (Ref.
). Southwestern Atlantic: Argentina (Ref.
Size / Weight / Age
range ? - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref.
: 43 - 44. This species is distinguished from its congeners by a set of characteristics: from
by the teeth on second ceratobranchial absent (vs. present) and supraorbital canal pores 7 (vs. 8); from
by total vertebrae 43-45 (vs. 47-48), supraorbital canal pores 7 (vs. six); from
by teeth on basibranchials well developed, 3-18, always present on second basibranchial and often on third basibranchial and second hypobranchial (vs. usually no teeth on basibranchials, rarely 1-3, small, restricted to second basibranchial); from
, by pectoral-fin rays 13-14 (vs. 15-16), tiny dermal spinules on body of specimens larger than 45.0 mm absent (vs. with spinules), fang in premaxillary head 1 (vs. 2), and supraorbital pores 7 (vs. 8 and 9, respectively) and from
by lateral-line pores 86-93 (vs. 91-94); from
, by teeth on second basibranchial present (vs. none), infraorbital pores 14 (vs. 12-13, modally 13), snout elongate and pointed, 22.2-26.6% HL (vs. snout short and blunt, 21.4-23.9% HL), upper jaw 72.2-80.0% HL (vs. 63.9-72.7% HL), and lower jaw 80.0-86.7% HL (vs. 69.0-76.7% HL) (Ref.
Mesopelagic to bathypelagic species (Ref.
). Specimens larger than 4.5 cm are more frequently collected between 730 and 1900 m with shallowest record being 150 m, the deepest 3900 m (mean 1390 m). Juveniles are found in shallower water, from 0 to 1,050 m (mean 542 m), with the smallest specimens (>10.0 mm) collected nearest to the surface (Ref.
). Feed on whole fish, often of individuals longer than themselves (Ref.
). Most specimens were taken at depths greater than 750 m (Ref.
Life cycle and mating behavior
, 2009. Revision of the genus
(Acanthomorpha: Chiasmodontidae), with description of two new species. Copeia 2009(3):583-608. (Ref.
IUCN Red List Status (Ref.
Least Concern (LC)
; Date assessed:
15 July 2014
Threat to humans
Fisheries: of no interest
FAO - Publication:
Stamps, Coins Misc.
Check for Aquarium maintenance
Check for Species Fact Sheets
Check for Aquaculture Fact Sheets
Websites from users
Catalog of Fishes
| FAO - Publication:
| Fishipedia |
| IGFA World Record |
Otolith Atlas of Taiwan Fishes
| Reef Life Survey | Socotra Atlas |
Tree of Life
| World Records Freshwater Fishing |
Estimates based on models
Preferred temperature (Ref.
): 4.2 - 8.7, mean 4.9 °C (based on 355 cells).
Phylogenetic diversity index (Ref.
= 0.5078 [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.
Trophic level (Ref.
): 4.2 ±0.73 se; based on food items.
Fishing Vulnerability (Ref.
): Low vulnerability (21 of 100).
Back to Search
Back to Top
FishBase mirror site :
Page last modified by :
- 20 July 2016
Total processing time for the page : 1.3010 seconds