White William T, Last Peter R, Mana Ralph R
CSIRO Oceans & Atmosphere, GPO Box 1538, Hobart, TAS, 7001, AUSTRALIA CSIRO National Research Collections Australia-Australian National Fish Collection, GPO Box 1538, Hobart, TAS, 7001, AUSTRALIA.
Zootaxa. 2017 Mar 19;4244(2):219-230. doi: 10.11646/zootaxa.4244.2.4.
A new arhynchobatin skate, Notoraja sereti n. sp., is described based on three specimens collected from off Madang (Papua New Guinea) at depths of 800-980 m. This medium-size Notoraja skate shares with other velcro skates from the Western Pacific, N. alisae, N. fijiensis, N. inusitata and N. longiventralis, a ventral surface covering of fine denticles giving the skin a velvety feel. Notoraja sereti differs from all of these species in having a shorter snout (preorbital length 10.1-11.1 vs. 11.5-14.5% TL, prenasal length 8.2-8.9 vs, 9.8-12.1% TL), shorter head (dorsal head length 15.2-16.2 vs. 17.1-19.3% TL, ventral head length 21.6-22.9 vs. 22.9-25.9% TL), fewer pectoral-fin radials (total radials 58-60 vs. 61-74), and fewer vertebrae (predorsal diplospondylous centra 66-71 vs. 72-82, predorsal centra 90-95 vs. 98-107, total centra 126-131 vs. 135-152).
基于从马当（巴布亚新几内亚）外海800 - 980米深处采集的三个标本，描述了一种新的无吻鳐类鳐鱼，即塞氏无吻鳐（Notoraja sereti n. sp.）。这种中等大小的无吻鳐与西太平洋的其他粘性鳐鱼，如阿氏无吻鳐（N. alisae）、斐济无吻鳐（N. fijiensis）、罕见无吻鳐（N. inusitata）和长腹无吻鳐（N. longiventralis）一样，腹面覆盖着细小的盾鳞，使皮肤有天鹅绒般的触感。塞氏无吻鳐与所有这些物种的区别在于吻部较短（眶前长为全长的10.1 - 11.1%，而其他物种为11.5 - 14.5%；鼻前长为全长的8.2 - 8.9%，而其他物种为9.8 - 12.1%）、头部较短（背侧头长为全长的15.2 - 16.2%，而其他物种为17.1 - 19.3%；腹侧头长为全长的21.6 - 22.9%，而其他物种为22.9 - 25.9%）、胸鳍辐状骨较少（总辐状骨为58 - 60，而其他物种为61 - 74）以及椎骨较少（背前双椎体中心为66 - 71，而其他物种为72 - 82；背前中心为90 - 95，而其他物种为98 - 107；总中心为126 - 131，而其他物种为135 - 152）。
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