Pareiorhina
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| Pareiorhina | ||||||||||||||
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| Rhinelepis rudolphi Miranda Ribeiro, 1911 |
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Pareiorhina brachyrhyncha |
Pareiorhina is a genus of catfishes (order Siluriformes) of the family Loricariidae. It includes three species, P. brachyrhyncha, P. carrancas, and P. rudolphi.[3]
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[edit] Taxonomy
Pareiorhina was first erected by Gosline in 1947 as a monotypic genus to include Rhinelepis rudolphi. It was not until 2003 that a second species, P. carrancas, was described.[2] The third species, P. brachyrhyncha, was described in 2005.[1] Pareiorhina forms a monophyletic subunit with Neoplecostomus within the paraphyletic subfamily Neoplecostominae.[1]
[edit] Distribution and habitat
P. carrancas was described from a headwater stream with clear, cold and moderate to fast flowing water of the Rio Grande basin in the State of Minas Gerais of southeastern Brazil.[2] P. brachyrhyncha is known from stony piedmont tributaries of the left bank of Rio Paraíba do Sul, in the State of São Paulo, southeastern Brazil. These streams belong to the Ribeirão Grande (also known as Teteqüera), Guameral, and Piagüi sub-drainages. They drain the southeastern slope of Serra da Mantiqueira, a major mountain range that separates the Paraíba do Sul from the upper Paraná River basin.[1] The geographic range of P. brachyrhyncha is entirely contained within the range of P. rudolphi.[1] P. rudolphi is distributed in the Paraíba do Sul River near Lorena, São Paulo State, Brazil.[3] Populations of Pareiorhina are known to occur at altitudes above 650 metres (2100 ft) in various rivers of the Grande, Paraíba do Sul, São Francisco, and Tietê River basins.[1]
[edit] Description
Pareiorhina species all have lateral borders of the head without developed bristles, a naked abdomen, dorsal plates meeting along the mid-dorsal line between the dorsal and caudal fins, no adipose fin, ventral plates covering the midventral line, and the dorsal portion of body behind dorsal fin flatenned (flat caudal peduncle with a rectangular cross section).[1] In P. carrancas and P. rudolphi, the teeth are simple, while in P. brachyrhyncha, the teeth have a minute lateral cusp at the base of the main cusp.[1] P. brachyrhyncha and P. carrancas are unique in lacking an adipose fin and azygous plates; in loricariids without an adipose fin, it is usually replaced by a series of azygous plates that form a ridge. However, these two species lack both the fin and the ridge.[1] These species range from about 4.1–4.5 centimetres (1.6–1.8 in) in length.[4][5][6]
[edit] References
- ^ a b c d e f g h i Chamon, Carine C.; Aranda, Arion T.; Buckup, Paulo A. (2005). "Pareiorhina brachyrhyncha (Loricariidae: Siluriformes): a New Species of Fish from the Paraíba do Sul Slope of Serra da Mantiqueira, Southeastern Brazil". Copeia 2005 (3): 550–558. doi:.
- ^ a b c Bockmann, Flávio A.; Ribeiro, Alexandre C. (October 2003). "Description of a new suckermouth armored catfish of the genus Pareiorhina (Siluriformes: Loricariidae), from southeastern Brazil". Ichthyol. Explor. Freshwaters 14 (3): 231–242.
- ^ 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.
- ^ "Pareiorhina brachyrhyncha". FishBase. Ed. Ranier Froese and Daniel Pauly. July 2007 version. N.p.: FishBase, 2007.
- ^ "Pareiorhina carrancas". FishBase. Ed. Ranier Froese and Daniel Pauly. July 2007 version. N.p.: FishBase, 2007.
- ^ "Pareiorhina rudolphi". FishBase. Ed. Ranier Froese and Daniel Pauly. July 2007 version. N.p.: FishBase, 2007.
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