Classificatie / Namen
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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: pudens: Name 'pudens' from the Latin adjective meaning modest, humble, reserved, discreet, in reference to the absence of conspicuous pattern on the body and fins and the absence of ostentatious modification on pectoral- and pelvic-fin rays.
Eponymy: Lieutenant-Colonel Robert Beresford Seymour Sewell CIE. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Tropical
Asia: Laos.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 4.9 cm SL mannelijk / geslacht onbekend; (Ref. 137931)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 10; Anale zachte stralen: 6. This species is distinguished from its congeners by the following set of characters: poorly developed patterning of the body and fins; presence of black pigments in a vague midlateral stripe and 3-8 small saddles on the back, especially on caudal peduncle; presence of irregular markings on the body of some specimens, but not forming a clear pattern; absence of colour marks on most specimens, except for thin black lining along rays in the dorsal, anal and caudal fins, and, rarely, 1 or 2 faint blotches along lower edge of the caudal fin; absence of black patterning on pectoral and pelvic fins; conspicuous marking on body and paired fins (some large specimens may be almost completely dark brown) and the dorsal and caudal fins have several rows of conspicuous black dots; longitudinal groove on the snout between patches of large tubercles in males; absence of dorsal extensions or ridges along the dorsal side of the pectoral-fin rays; the pelvic fin not reaching the anal fin; and the anal fin not reaching the base of the caudal fin (Ref. 137931).
Body shape (shape guide): elongated; Cross section: oval.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Kottelat, M., 2025. Sewellia pudens, a new species of loach from Dakchung Plateau, southern Laos (Teleostei: Gastromyzontidae). Raffles Bulletin of Zoology 73:304-317. (Ref. 137931)
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=0.00646 (0.00283 - 0.01475), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.5 ±0.4 se; based on size and trophs of closest relatives |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |