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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Glyptosterninae
Etymology: Exostoma: Greek, exos = outside + Greek, stoma = mouth (Ref. 45335); hajiensis: Name 'hajiensis from the type locality of the new species, Haji stream.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Subtropical
Asia: India.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 6.7 cm SL mannelijk / geslacht onbekend; (Ref. 138833)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 5 - 6; Anale zachte stralen: 4 - 5. This species is distinguished from its congeners by the following set of characters: posterior extremity of adipose fin base distinctly angular with sharply pointed dorsoposterior margin; tip of maxillary barbel extending beyond the origin of pectoral-fin base; nasal barbel not reaching anterior margin of orbit; both parallel and rounded striae on the anterolateral surfaces of the lips present; snout (53.7?60.9% HL); predorsal length (41.5–-4.9% SL); pelvic fin length (15.9?16.7% SL); preanal length (75.8?78.1% SL); outer mandibular barbel (15.1–-0.4% HL); adipose fin base length (23.1?26.7% SL); dorsal-adipose distance (10.2?17.1% SL); and caudal peduncle (15.4?19.6% SL) (Ref. 138833).
Body shape (shape guide): elongated.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Tenali, D.R., A. Kumar, T. Kumawat, R.K. Singh and U.K. Sarkar, 2025. Exostoma hajiensis, a new sisorid catfish, (Teleostei: Sisoridae) from Arunachal Pradesh, North-Eastern India. Rec. zool. Surv. India 125:1-8. (Ref. 138833)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00589 (0.00261 - 0.01327), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |