2009年1月9日 星期五

Hyphessobrycon khardinae, 一種巴西產的"扯旗類"脂鯉新種

文獻來源: Zarske A. 2008. Hyphessobrycon khardinae sp. n. – ein neuer Blutsalmler aus Brasilien ( Teleostei: Characiformes: Characidae)". Vertebrate Zoology 58: 5–13. [全文]

Hyphessobrycon khardinae sp. n., a new characid fish (Teleostei: Characiformes: Characidae), is described from the surroundings of Tapua, rio Itaparana, Brasil. The new species belongs according to Hoedeman (1954) and Gery (1961, 1978) to the callistus-group, according to Weitzman & Palmer (1997) to the "rose tetra clade" and is characterized by the following combination of features: (1) two to five broad tri- to quincuspid maxillary teeth, (2) two to three tricuspid premaxillary teeth in the external row, (3) five broad quincuspid premaxillary teeth in the internal row, (4) 31-34 scales in a longitudinal row, (5) body relatively deep (2.62-2.93 times in SL), (6) head relatively short (4.07-4.41 times in SL) and (7) a triangular, horizontal, with the tip to the head directed humeral spot.

圖片連結: Zarske之原文 (最上圖為H. khardinae之成魚, 第二圖為真正的H. werneri, 第三圖為H. epicharis, 最下圖為H. khardinae (黑印血旗)之棲地環境)
延伸閱讀: evacafe於蝦米的說明, 以及practicalfishkeeping的介紹