Pseudotothyris

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Pseudotothyris
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Subfamily: Hypoptopomatinae
Tribe: Otothyrini
Genus: Pseudotothyris
Britski & Garavello, 1984
Binomial name
Pseudotothyris janeirensis
Britski & Garavello, 1984
Pseudotothyris obtusa
(Miranda Ribeiro, 1911)

Pseudotothyris is a genus of catfishes (order Siluriformes) of the family Loricariidae. It includes two species, P. janeirensis and P. obtusa.[1]

Contents

[edit] Taxonomy

Within the tribe Otothyrini, Pseudotothyris has a sister group relationship with Otothyris. In turn, Otothyropsis has a sister group relationship with the clade Otothyris plus Pseudotothyris.[2] These three genera and Schizolecis share unique specializations of the cranium associated with an enlarged swimbladder capsule. The degree of development of the swimbladder capsule in these genera was not found in any other member of the Otothyrini.[2]

[edit] Distribution

P. janeirensis originates from the Rio de Janeiro State, Brazil and P. obtusa originates from southeastern Brazil.[1]

[edit] Description

P. janeirensis reaches about 5 centimetres (2 in) SL.[3] P. obtusa grows to about 4 cm (1.6 in) SL.[4]

[edit] References

  1. ^ a b Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
  2. ^ a b Ribeiro, Alexandre C.; Carvalho, Murilo; Melo, Alex L. A. (2005). "Description and relationships of Otothyropsis marapoama, a new genus and species of Hypoptopomatine catfish (Siluriformes: Loricariidae) from rio Tietê basin, southeastern Brazil" (PDF). Neotropical Ichthyology 3 (4): 489–498. doi:10.1590/S1679-62252005000400006. 
  3. ^ "Pseudotothyris janeirensis". FishBase. Ed. Ranier Froese and Daniel Pauly. July 2007 version. N.p.: FishBase, 2007.
  4. ^ Template:FishBase species=Pseudotothyris
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