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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Pseudotothyris: Greek, pseudes = false + Greek, ous, otis = ear + Greek, thyris, -idos = little door (Ref. 45335).
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water demersaal. Tropical
South America: coastal drainages from São Sebastião in São Paulo state to Ilha do Superagüi, Baia de Paranaguá in Paraná state, Brazil.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 4.0 cm SL mannelijk / geslacht onbekend; (Ref. 36885)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 8 - 10; Anale zachte stralen: 6 - 7; Wervels: 27 - 28. Pseudotothyris obtusa can be diagnosed from all congeners by having the upper pharyngeal toothplate bearing 20-30 teeth (vs. 32-47 in Pseudotothyris ignota, 31-36 in Pseudotothyris janeirensis); ceratobranchial 5 bearing 12-15 teeth (vs. 15-31 in Pseudotothyris ignota, 18-23 in Pseudotothyris janeirensis). It further differs from Pseudotothyris ignota by having the anterior margin of snout completely covered by
odontodes (vs. anterior margin of snout with an odontode-free band); first anal-fin pterygiophore contacting the 12th vertebra (vs. 13th); and metapterygoid-hyomandibula suture reduced, the bones not contacting each other dorsally to the suture (vs. metapterygoid and hyomandibula contacting each other dorsally to the suture). It can be differentiated from Pseudotothyris janeirensis by having scattered plates covering the abdomen partial or totally (vs. abdomen almost naked, except for one to three lateral abdominal plates and one to two preanal plates); spinelet absent (vs. present); three transverse dark saddles on the dorsum (vs. transverse dark saddles on the dorsum absent); subocular cheek plate generally present (vs. always absent); and odontodes on lateral plates randomly distributed (vs. odontodes aligned in well-defined series) (Ref. 116384).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Martins, F.O., H.A. Britski and F. Langeani, 2014. Systematics of Pseudotothyris (Loricariidae: Hypoptopomatinae). Zool. J. Linn. Soc. 170:822-874. (Ref. 116384)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02138 (0.00778 - 0.05875), b=2.93 (2.70 - 3.16), 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).
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