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''Dactylobatus clarkii'', Clark's fingerskate or the hookskate, "is a medium-sized (to 75 cm TL) but poorly known, deepwater skate."〔 The distribution of the hookskate is considered patchy and covers the western central and southwest Atlantic, including the east coast of Florida (USA), throughout the Gulf of Mexico (Guatemala, Lesser Antilles, Colombia, Venezuela and Suriname), and off Rio Grande do Sul (southern Brazil). == Description == A 1967 survey of specimens included 14 males ranging from , and eight females from . It has been found on muddy bottoms of the continental slope at depths of .〔 Bigelow and Schroeder describe the species as "characterized among western Atlantic rajids by the presence of a band of formidable and very sharp thorns extending along the margin of the lower surface from the tip of the snout almost to the outer corners of the disc."〔 The number of thorns in the median row varied from 30 to 43, without apparent relation to the size or age of the skate, while a triangular patch of thorns in the nuchal–scapular area ranged from one to five.〔 The upper surface is brown, with darker punctulations scattered across the disc, pelvics, and tail, and some specimens have "conspicuous white spots," which if present are located in the same parts of the disc.〔 "Eggs have horn-like projections on the shell."〔(【引用サイトリンク】 work=Fishbase )〕 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「Dactylobatus clarkii」の詳細全文を読む スポンサード リンク
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