Leiocassis rudicula

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Leiocassis rudicula Ng & Hadiaty, 2019

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drawing shows typical species in Bagridae.

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> Siluriformes (Catfishes) > Bagridae (Bagrid catfishes)
Etymology: Leiocassis: Greek, leios = smooth + Greek, kassis = similar to cinnamon (Ref. 45335);  rudicula: Name from Latin 'rudicula', a diminutive of wooden spoon, alluding to the distinct concavity on the dorsolateral profile of the head (Ref. 121927).

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal. Tropical

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Asia: Indonesia.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 11.8 cm SL mannelijk / geslacht onbekend; (Ref. 121927)

Korte beschrijving Morfologie | Morfometrie

This species can be distinguished from its congeners by the following set characters: presence of distinct concavity at level of orbit in dorsolateral profile of the head; tip of supraoccipital spine not reaching anterior nuchal plate element; short dorsal spine with smooth posterior margin; presence of an irregular pale band on sides of body between dorsal and adipose fins; anal fin with narrow brown band across middle 3rd of fin; narrow caudal-fin lobes with approximately straight posterior margins; snout length 36-40% HL; eye diameter 14-20% HL; head depth 17.6-20.0% SL; length of dorsal-fin spine 14.1-18.5% SL; length of pectoral-fin spine 15.1-17.7 %SL; dorsal-to-adipose distance 10.9-14.3% SL; body depth at anus 16.4-19.5% SL; length of adipose-fin base 18.9-24.1% SL; length of anal-fin base 18.8-22.6% SL; and caudal peduncle depth 9.1-10.9% SL (Ref. 121927).

Biologie     Verklarende woordenlijst (bv. epibenthic)

One of the bagrid catfish species known to be endemic to the Mahakam River drainage. Found in streams with a moderate or fast flowing current with clear, sometimes tannin-stained, water (Ref. 121927).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Ng, H.H. and R.K. Hadiaty, 2019. Leiocassis rudicula (Teleostei: Siluriformes: Bagridae), a new catfish from eastern Borneo. Zootaxa 4651(1):191-200. (Ref. 121927)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Bedreigd (EN) (B1ab(i,iii)); Date assessed: 07 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref. 69278):  3.4   ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).