Classificatie / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Paulasquama: Name from the Latin ‘paulus’ for small, and ‘squama’ for scale armor, referring to the small plates located in the dorsal series just below the dorsal fin.; callis: Name from Latin 'Callis' (masculine or feminine) for a stony, uneven, narrow footway, referring to the plates like cobblestones along the narrow mesethmoid with naked areas to either side; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: NW Guyana (Waruma River, tributary of the Mazaruni River).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm ?, range 4 - ? cm
Max length : 4.7 cm SL mannelijk / geslacht onbekend; (Ref. 86603)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 2; Dorsale zachte stralen (totaal) : 7; Anale zachte stralen: 5. This species is distinguished from all other hypostomines by three unique autapomorphies: large, oval area lateral to the mesethmoid that is devoid of plates; plates in the dorsal series lateral to dorsal fin reduced to less than half what would be expected for a loricariid of its size; and, a fleshy keel along and slightly anterior to the preadipose plate and extending to dorsal caudal-fin simple ray along dorsal procurrent rays (Ref. 86603).
The collection area Waruma is a largely clearwater river with a slight black tint. Specimens
collected in a riffle, in a shallow side channel over polished cobble and gravel with some larger rocks covered in a grasslike vegetation. The watershed is forested (Ref. 86603).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Armbruster, J.W. and D.C. Taphor, 2011. A new genus and species of weakly armored catfish from the Upper Mazaruni River, Guyana (Siluriformes: Loricariidae). Copeia 2011(1):46-52. (Ref. 86603)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00712 - 0.03216), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
