Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Notacanthiformes (Halosaurs and deep-sea spiny eels) >
Notacanthidae (Deep-sea spiny eels)
Etymology: Notacanthus: Greek, noton = back + Greek, akantha = thorn (Ref. 45335); laccadiviensis: Named for Laccadives (=Lakshadweep), an archipelago of islands in the Laccadive Sea (Central
Indian Ocean), off the coast of southwestern India.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range ? - 350 m (Ref. 130909). Tropical
Western Indian Ocean: India.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 16.7 cm SL male/unsexed; (Ref. 130909)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from all its congeners (except N. indicus) by the following characters: fewer anal-fin rays 92-94 (vs. 105-136), and except N. abotti and N. chemnitzi in the greater number of dorsal-fin spines 12 (vs. 5-11); differs from N. abotti, N. chemnitzii, N. indicus in having fewer pectoral-fin rays 10-11 (vs. 12-16); differs from N. abotti in the number of spines and rays on the ventral fin III-IV, 5-7 (vs. VI, 6) and number of gill rakers on the first-gill arch 3 + 7 (vs. 4 + 11); differs from N. chemnitzi in the number of spines and rays on the anal fin XX, 110 (vs. XIII-XVI, 92–94) and number of gill rakers on the first-gill arch (vs. 3 + 11-12); and from N. indicus, the only congeneric species currently known from the Indian Ocean region in the morphology of dorsal fin with spines increasing in length (vs. first 10 spines increasing in length, followed by a shorter 11th spine) (Ref. 130909).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Konhamkakkada, I., B. Kinattumkara, R, Raghavan and S. Sivanpillai, 2023. A new species of spiny eel of the genus Notacanthus Bloch 1788 (Notacanthiformes: Notacanthidae) from the Indian Ocean. J. Fish Biol. 103(1):113-117. (Ref. 130909)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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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=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 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).
