Actinopteri (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails)
Etymology: Coelorinchus: Greek, koilos = a hollow + Greek, rhyngchos = jaw (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; non-migratory; depth range 263 - 1150 m (Ref. 1371). Deep-water; 3°S - 44°S, 0°W - 97°E (Ref. 1371)
Southeast Atlantic: Namibia to off Cape of Good Hope, South Africa; Discovery Tablemount; Valdivia Bank. Indian Ocean: Madagascar Plateau; Saya de Malha Bank and Broken (West Australian) Ridge.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 1371)
Morphology | Morphometrics
spines: 0. Snout long and pointed, its anterolateral margin completely supported by bone. Head ridges narrow, sharply spined; the underside of the head mostly naked except for patches of thin, deciduous scales posteriorly behind level of mouth angle. Light organ small and externally apparent as a blackish streak extending forward of the anus to between the pelvic fins. Overall color is light brown to swarthy; the abdominal region bluish; the fins dusky to blackish; the mouth and gill cavities blackish.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 5.8 - 11.4, mean 8.5 °C (based on 57 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00107 - 0.00428), b=3.18 (3.01 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (25 of 100).