Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Trachichthyiformes (Roughies) >
Trachichthyidae (Slimeheads)
Etymology: Aulotrachichthys: Greek, aulos = flute + Greek, trachys, -eia, -ys = rough; spiralis: Named for the longitudinal helical ridges on the fin spines in large specimens; noun in apposition,
means “spiral”, in reference to.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 25 - 220 m (Ref. 130070). Subtropical
Northwest Pacific: Japan and northern East China Sea and Osumi Channel.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.9 cm SL male/unsexed; (Ref. 130070); 8.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 5; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 8; Vertebrae: 27. This species is distinguished from all its congeners by the following set of characters: D V,13 usually; A III,8 usually; ventral scutes 7-10 (modally 8); specimens >70 mm SL have 57-62 scale rows in longitudinal series, 24-29 pored lateral-line scales, and 7-9 scale rows between last dorsal-fin spine and lateral line; striated area ending before mid-point on caudal peduncle, its length 25.2–39.7% of caudal peduncle length; posterior interorbital ridges mesially curved posteriorly; posttemporal crest with rounded margin, lacking a distinct spine; spines of dorsal, anal and pelvic fins with many longitudinal helical ridges on surface (specimens >75 mm SL) (Ref. 130070).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Matsunuma, M., A. Ujihara and H. Endo, 2023. Two new species of Aulotrachichthys (Beryciformes: Trachichthyidae) from the northwestern Pacific. Ichthyol. Res. 71(1):56-82. (Ref. 130070)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00425 - 0.02703), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
