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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Peckoltia ： ウィキペディア英語版 Peckoltia ''Peckoltia'' is a genus of small South American armored suckermouth catfishes. Many of these fish are popular aquarium fish. ==Taxonomy== ''Peckoltia'' is a basal genus within the tribe Ancistrini of the subfamily Hypostominae.〔 This genus is paraphyletic. At this point, many undescribed species remain. Many of the possibly undescribed species have an identification through the L-number system. ''Peckoltia'' species can be distinguished from most other in the genera in the tribe Ancistrini by having a lateral ridge on the opercle that usually has no odontodes and the teeth on their upper jaw (dentary) forming an angle under 90 degrees; while some genera also have an angled dentary, ''Peckoltia'' species lack synapomorphies of these genera.〔 This genus and the closely related ''Hemiancistrus'' may be synonymous, as neither genus is supported by synapomorphies. Generally, ''Peckoltia'' are considered to be those that have dorsal saddles and bands in the fins, while ''Heminancistrus'' have spots and uniform coloration.〔 This genus is also similar to ''Hypancistrus'' and ''Panaque'' except for differences in teeth. Teeth on both jaws are the same size as opposed to different sizes, which is different from ''Hypancistrus'' where the upper jaw teeth are larger. Also, the teeth are villiform (brush-shaped) rather than spoon-shaped, in contrast to the ''Panaque''.〔 The classification of some of the species in this genus has been confused. ''P. bachi'' is the senior synonym of ''P. arenaria'', ''P. filicaudata'', and ''P. ucayalensis''. This species is quite divergent and may even represent a separate genus; this group has been described twice as such, under the synonyms ''Peckoltichthys'' and ''Sophiancistrus''.〔 ''P. yaravi'' has been moved to ''Neblinichthys''.〔 ''P. sabaji'' was arbitrarily placed in this genus (as opposed to ''Heminacistrus''), but may even represent its own genus; later, it has been placed in ''Hemiancistrus''. ''Peckoltia bachi'' is placed in the genus ''Peckoltichthys'' and ''Peckoltia snethlageae'' and ''Peckoltia feldbergae'' are placed in the genus ''Ancistomus''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Peckoltia」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.