Redescription of Pterygoplichthys punctatus and description of a new species of Pterygoplichthys (Siluriformes: Loricariidae)

被引：80

作者：

Armbruster, Jonathan W.

Page, Lawrence M.

机构：

[1] Auburn Univ, Dept Biol Sci, Auburn, AL 36849 USA

[2] Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA

来源：

NEOTROPICAL ICHTHYOLOGY | 2006年 / 4卷 / 04期

关键词：

hypostominae; systematics; Pterygoplichthyini; suckermouth armored catfishes;

D O I：

10.1590/S1679-62252006000400003

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Pterygoplichthys punctatus and P weberi, new species, are unique among hypostomines in having a medially divided buccal papilla. The two species can be separated from one another by color (small spots in P. punctatus, large in R weberi), condition of the buccal papilla (deeply divided at all ages in R punctatus vs. shallowly divided in adults of P. weberi), condition of the lateral keel odontodes (fairly short and directed posteriorly in P. punctatus vs. large and directed almost laterally in P. weberi), and body width (SL/cleithral width 3.6-4.0 in P. punctatus vs. 3.3-3.4 in P. weberi). Pterygoplichthys punctatus is known from the rio Madeira drainage and the rio Urubu of Brazil and has published, but unconfirmed localities in the rio Purus and rio Tocantins basin, and P. weberi is known from the Rio Marahon, Rio Ucayali, and upper Rio Amazonas drainages of Colombia, Ecuador, and Peru.

引用

页码：401 / 409

页数：9

共 10 条

[1] Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae [J].