Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Trichiuridae
(Cutlassfishes) > Trichiurinae
Etymology: Tentoriceps: Latin, tentorium = tent + Latin, ceps = head. More on author: Klunzinger.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 30 - 110 m (Ref. 9688), usually - m (Ref. ). Tropical; 0°C - ; 37°N - 43°S, 33°E - 157°E (Ref. 6181)
Indo-West Pacific: Red Sea, Mozambique Channel, Saya de Malha Bank, Chagos Islands, Andaman Sea, northern and southeastern Australia, South China Sea, East China Sea, Tasman Sea, Philippines, and southern Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 6181); common length : 50.0 cm TL male/unsexed; (Ref. 6181)
soft rays: 47 - 50. Body extremely elongate, compressed and tapering to a point. Pelvic fins reduced to scale-like processes; caudal fin absent. Lateral line running almost straight mid laterally nearer the ventral than the dorsal contour. Color is silvery white becoming silvery gray with dark cloud-like patches after death.
Benthopelagic or pelagic in coastal waters but not found where there is low salinity. Feeds mainly on small fishes, squids and crustaceans. Caught mainly with bottom trawls and sometimes with bag nets, mixed with other trichiurid fishes in southeast Asian countries. Marketed fresh and dried salted in the Philippines.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 22.5 - 28.3, mean 27.2 °C (based on 500 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00191 (0.00079 - 0.00457), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.58 se; based on food items.
Generation time: 3.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .