Validity of Scolecenchelys aoki, with a redescription of Scolecenchelys gymnota (Anguilliformes: Ophichthidae)
Validity of Scolecenchelys aoki, with a redescription of Scolecenchelys gymnota (Anguilliformes: Ophichthidae)
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Scolecenchelys aoki 的有效性，以及对 Scolecenchelysgymnota（鳗形目：蛇口蛇科）的重新描述
DOI：
10.1007/s10228-011-0269-4
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发表时间：
2012
影响因子：
1.2
通讯作者：
J. E.
中科院分区：
文献类型：
--
作者：
Hibino;Y.;Kimura;S.;Hoshino;K.;Hatooka;K.;and McCosker;J. E.
根据在印度洋-太平洋海域采集的模式标本和非模式标本，重新描述了棘鳅科鱼类青冈Muraenichthys aoki Jordan and Snyder 1901和裸腹Muraenichthys gymnotus Bleeker 1857。由于这两个物种在具有尖锐的吻部、眼的后缘在口裂之前以及它们的背鳍起源位于通过肛门的垂直线的稍后方方面彼此相似，因此青木蛇鳗通常被认为是裸蛇鳗的初级同义词。然而，S. aoki与S.在吻部的腹侧有一条中间沟的裸泳动物（缺席在S. gymnota），在较小的标本单上颌牙齿（<200 mm TL; vs. bisobacter），眶后区有3个眶下感觉孔（vs.两个），以及更多的椎骨（背前组56-65;背前组51-57;肛门前53-58 vs. 47-52）.青冈蛇鳗Scolecenchelys aokii仅限于日本沃茨，并被认为是Muraenichthys borealisMachida和Shiogaki的高级异名1990. Scolecenchelys gymnotais广泛分布于印度洋-太平洋，从南非和红海到萨摩亚，北至日本的冲绳。裸子植物
The myrophine ophichthid fishes (worm eels)Muraenichthys aokiJordan and Snyder 1901 andMuraenichthys gymnotusBleeker 1857 are redescribed as valid species ofScolecenchelysbased on the types and non-type specimens collected from the Indo-Pacific. Because both species are similar to each other in having acute snouts, the posterior margin of the eye before the rictus, and their dorsal-fin origins located slightly posterior to a vertical line through the anus,Scolecenchelys aokihas usually been regarded as a junior synonym ofScolecenchelys gymnota. However,S. aokiis clearly distinguishable fromS. gymnotaby having a median groove on the ventral side of snout (absent inS. gymnota), uniserial maxillary teeth in smaller specimens (<200 mm TL; vs. biserial), three infraorbital sensory pores at postorbital area (vs. two), and more numerous vertebrae (56–65 in predorsal vs. 51–57; 53–58 in preanal vs. 47–52).Scolecenchelys aokiis restricted to Japanese waters and regarded as a senior synonym ofMuraenichthys borealisMachida and Shiogaki 1990.Scolecenchelys gymnotais widely distributed in the Indo-Pacific, from South Africa and the Red Sea to Samoa, north to Okinawa, Japan.Sphagebranchus huysmaniWeber 1913 andMuraenichthys fowleriSchultz 1943 are synonymized underS. gymnota.