Actinopteri (ray-finned fishes) > Tetraodontiformes
(Puffers and filefishes) > Triacanthodidae
(Spikefishes) > Triacanthodinae
Etymology: Bathyphylax: Greek, bathys = deep + Greek, phylax, -akos = wardn, keeper (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range ? - 291 m (Ref. 58018). Deep-water
Indian Ocean: off Kenya (Ref. 6660). Northwest Pacific: Japan (first record) (Ref. 124779).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL male/unsexed; (Ref. 97685)
Morphology | Morphometrics
soft rays: 12;
Vertebrae: 20. This species is distinguished by the color pattern of the body with upper half pinkish, 3 longitudinal distinct red stripes ( first originating around nape to base of spiny dorsal fin to origin of soft dorsal fin, second from just behind postero-dorsal edge of orbit and along side of body to end of soft dorsal-fin base, and the third starting just behind posterior edge of orbit, running on mid body, curving very slightly down below thrid dorsal-fin spine and ending just above posterior part of anal-fin base with a short disconnection below anterior part of soft dorsal fin); snout shorter than rest of head, dorsal profile of the snout slightly concave or relatively straight (Ref. 124779).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tyler, J.C., 1986. Triacanthodidae. p. 887-890. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6660)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 11.8 - 18.4, mean 13.4 °C (based on 12 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.8 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .