Matsunuma Mizuki
Laboratory of Marine Biology, Faculty of Science, Kochi University, 2-5-1 Akebono, Kochi 780-8520, Japan..
Zootaxa. 2017 Feb 16;4232(3):zootaxa.4232.3.7. doi: 10.11646/zootaxa.4232.3.7.
A new species of pipefish, Syngnathus chihiroe sp. nov., (Syngnathidae), is described on the basis of a single specimen collected off Yakushima Island (East China Sea), southern Japan in a depth of 160-162 m. The new species is readily distinguished from all congeners by the combination of the following characters: dorsal-fin rays 38, pectoral-fin rays 17, trunk rings 18, tail rings 40, subdorsal rings 3.25 + 10.0 = 13.25, head length 8.7 in standard length, snout length 2.3 in head length and snout depth 3.7 in snout length. The new species is similar to Syngnathus schlegeli Kaup 1853, the only other northwestern Pacific Ocean congener, characterized by dorsal-fin rays 30-47, trunk rings 18-20 and tail rings 38-46. However, it differs from S. schlegeli in having a greater number of pectoral-fin rays (17 in the former vs. 11-15 in the latter), and a short deep snout (snout length 2.3 in head length and snout depth 3.7 in snout length vs. 1.6-2.0 and 5.6-11.3, respectively).
一种新的管口鱼物种，即千与鹤管口鱼（Syngnathus chihiroe sp. nov.）（管口鱼科），是根据在日本南部屋久岛（东海）160 - 162米深处采集的一个单一标本描述的。该新物种通过以下特征组合很容易与所有同属物种区分开来：背鳍鳍条38，胸鳍鳍条17，躯干环18，尾环40，背下环3.25 + 10.0 = 13.25，头长为标准体长的8.7倍，吻长为头长的2.3倍，吻深为吻长的3.7倍。新物种与1853年考普描述的西北太平洋唯一的另一个同属物种施氏管口鱼（Syngnathus schlegeli）相似，其特征为背鳍鳍条30 - 47，躯干环18 - 20，尾环38 - 46。然而，它与施氏管口鱼的不同之处在于胸鳍鳍条数量更多（前者为17，后者为11 - 15），且吻短而深（吻长为头长的2.3倍，吻深为吻长的3.7倍，而后者分别为1.6 - 2.0和5.6 - 11.3）。
