Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, Taiwan.
Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan. George Chen Shark Research Center, National Taiwan Ocean University, Keelung, Taiwan. Institute of Marine Affairs and Resource Management, National Taiwan Ocean University, Keelung, Taiwan..
Zootaxa. 2023 Feb 16;5244(1):51-60. doi: 10.11646/zootaxa.5244.1.4.
The milk-eye catshark Apristurus nakayai Iglésias, 2012 was known from three specimens in the southwestern Pacific Ocean. Six specimens were recently collected from the South China Sea. It belongs to the brunneus group, and superficially resembles A. platyrhynchus Tanaka, 1909. Apristurus nakayai differs from A. platyrhynchus by the following characters: iris shiny white when fresh; body brownish black to black; second dorsal-fin insertion above or slightly in front of the anal-fin insertion; denticles absent inside mouth; and maturing at about 400 mm TL in both sexes. The occurrence of Apristurus nakayai from the South China Sea represents the first record in the northern Hemisphere, and a substantial distributional range extension (ca. 4665 km).
牛奶眼猫鲨 Apristurus nakayai Iglésias, 2012 已知分布于西南太平洋的三个标本。最近从南海采集到了六个标本。它属于 brunneus 组，外观上类似于 A. platyrhynchus Tanaka, 1909。Apristurus nakayai 与 A. platyrhynchus 的区别在于：新鲜时虹膜呈闪亮的白色；身体呈棕黑色到黑色；第二背鳍插入点在上或略前于肛鳍插入点；口内无齿状突；雌雄均在约 400 毫米 TL 时成熟。Apristurus nakayai 在南海的出现代表了其在北半球的首次记录，以及分布范围的大幅扩展（约 4665 公里）。
