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Fringe-eared oryx : ウィキペディア英語版 | Fringe-eared oryx
The fringe-eared oryx (''Oryx beisa callotis'') is a subspecies of East African oryx. It was originally described as a distinct species by Oldfield Thomas in 1892, but was subsequently re-evaluated as a subspecies by Richard Lydekker in 1912. Recently, analysis using the phylogenetic species concept has led some authors to conclude that it should be returned to full species status (''Oryx callotis''). ==Description== Fringe-eared oryxes are relatively muscular antelopes with short, slender legs. Adults are in head-body length, with a tail long, and stand tall at the shoulder. Males are heavier, weighing , compared with for females, but the two sexes are otherwise difficult to distinguish. The hair is fawn coloured across almost the entire body, with a black stripe down the flanks. There are also black bands on the front and side of the face, and down the throat, while the muzzle is white. There is a short mane of brownish hair, as well as tufts of black hair above the hooves, at the end of the tail, and on the ears. It is from the last feature, unique among the various kinds of oryx, that the subspecies gains its common name.〔 The horns are long, and almost straight, with only a slight backwards curve. Unlike in most other hippotragine antelopes, but like those of other oryxes, those of the fringe-eared oryx are parallel with the upper surface of the animal's snout. The horns are similar in males and females, and have an average of sixteen rings around the lower half, before smoothly tapering to a point.〔
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「Fringe-eared oryx」の詳細全文を読む
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