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Alionematichthys ceylonensis  Møller & Schwarzhans, 2008

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Alionematichthys ceylonensis
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Ophidiiformes (Cusk eels) > Bythitidae (Viviparous brotulas) > Brosmophycinae
Etymology: Alionematichthys: Name from Latin alius meaning the other or different, and nematichthys, the stem of the genus name Dinematichthys, to which this genus is most similar.;  ceylonensis: Named for its type locality which is formerly known as Ceylon; an adjective..   More on author: Schwarzhans.

Environment / Climate / Range Ecology

Marine; reef-associated.   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Indian Ocean: Sri Lanka.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL male/unsexed; (Ref. 81230)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 75-83; Anal soft rays: 57 - 65; Vertebrae: 41 - 43. This species is distinct in having the following characters: D 75-83 (average 79); A 57-65 (average 60); moderately large eyes (2-2.8%SL); rounded snout, no cirri; only cheeks with scales; no upper preopercular pore; outer pseudoclasper broad-based, triangular, with distal knob on inner side, while the inner one with symmetrically developed anterior pointed lobe and posterior lobe resembling in shape a socket fitting to small knob on inner face of outer pseudoclasper; otolith length to height 2.3-2.4, with shallow dorsal rim; otolith length to sulcus length 1.5-1.6, ostium length to cauda length 3.3-4.0; vertebrae 11-12 + 29-31 = 41-43 (Ref. 81230).

Biology     Glossary (e.g. epibenthic)

A 5.3 cm SL gravid female (USNM 394975) with 80 embryos, 0.48 cm TL in length, and 60 orange eggs, 0.07 cm in diameter (Ref. 81230).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Møller, P.R. and W. Schwarzhans, 2008. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part IV. Dinematichthys and two new genera with descriptions of nine new species. The Beagle 24:87-146. (Ref. 81230)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00175 - 0.01142), b=3.10 (2.88 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153):  Low vulnerability (14 of 100) .