Actinopteri (ray-finned fishes) > Gadiformes
(Cods) > Macrouridae
(Grenadiers or rattails)
Etymology: Coelorinchus: Greek, koilos = a hollow + Greek, rhyngchos = jaw (Ref. 45335).
More on authors: Goode & Bean.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; non-migratory; depth range 200 - 700 m (Ref. 1371), usually 300 - 400 m (Ref. 1371). Deep-water; 35°N - 2°N, 98°W - 47°W (Ref. 1371)
Western Central Atlantic: Cape Hatteras, USA to northern Brazil. Absent in Straits of Florida, uncommon to the north and along Antillean chain.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref. 26340)
Morphology | Morphometrics
(total): 25-39. Head large; eyes large; snout pointed; body tapering to a point posteriorly from behind the first dorsal-fin base; light organ large, a broadly lenticular to oval black naked fossa between and somewhat anterior to the pelvic fin bases; scales covered with fine conical spinules except posteriorly and ventrally on trunk and tail where the spinules are broader; color is swarthy overall with a silvery tinge over the abdomen and gill covers in fresh specimens (Ref. 1371).
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: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 9.9 - 18.1, mean 13.4 °C (based on 38 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00155 (0.00092 - 0.00261), b=3.16 (3.01 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (35 of 100).