Kopua minima (Döderlein 1887), a senior synonym of K. japonica Moore, Hutchins and Okamoto 2012, and description of a new species of Aspasma (Gobiesocidae)

Kopua minima (Döderlein 1887), a senior synonym of K. japonica Moore, Hutchins and Okamoto 2012, and description of a new species of Aspasma (Gobiesocidae)
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极小科普阿 (D

DOI:
10.1007/s10228-019-00701-0
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发表时间:
2019
影响因子:
1.2
通讯作者:
Motomura Hiroyuki
Motomura Hiroyuki
中科院分区:
生物学4区
文献类型:
--
作者:
Fujiwara Kyoji;Motomura Hiroyuki

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Steindachner和Döderlein在1887年对Lepadogaster minimus Döderlein的综合型进行了检查,结果表明该物种与日本科普阿(Kopua japonica)相同,但长期以来一直被认为是Aspasma的有效种。为L指定一个选择型。minimus(=Kopua minima),是K.日本。一种通常被认为是Aspasma minimae的物种被描述为新种Aspasma ubauosp。十一月,根据日本大陆的58个标本,其特征为:背鳍条5-7条,肛鳍条6-8条,胸鳍条19-22条,每弓4-6个鳃耙,头部小,中度下凹(背侧轮廓扁平),其长度25.2-34.4% SL;嘴端;吻侧观略尖;无次肩胛刺;背鳍和臀鳍与尾鳍分开;单排(除了在前上颌骨上)每个颌骨的矩形门齿,缺乏向后钩状的尖端;在背面视图中,在前上颌骨的前部之间没有大的圆形间隙;盘大小适中,其长度为SL的15.8-20.6%;盘区D和盘区A的前中央部分没有扁平的乳头;头部感觉管孔发育良好,包括2个鼻孔、泪孔和眶后孔,以及3个鳃盖前孔;身体没有细长的斑点或条纹。还描述了新种随生长而发生的形态变化和性二型性。
Examination of the syntypes ofLepadogaster minimusDöderlein in Steindachner and Döderlein 1887 showed that species to be identical withKopua japonicaMoore, Hutchins and Okamoto 2012, although long been regarded as a valid species ofAspasma. A lectotype is designated forL. minimus(=Kopua minima), which is regarded as a senior synonym ofK. japonica. A species commonly regarded asAspasma minimais described as the new speciesAspasma ubauosp. nov., on the basis of 58 specimens from the Japanese mainland, and characterized by the following characters: 5–7 dorsal-fin rays; 6–8 anal-fin rays; 19–22 pectoral-fin rays; 4–6 gill rakers on each arch; head small, moderately depressed (dorsal profile flattened), its length 25.2–34.4% SL; mouth terminal; snout slightly pointed in lateral view; no subopercular spines; dorsal and anal fins well separated from caudal fin; single row (except anteriorly on premaxilla) of rectangular incisors in each jaw, lacking posteriorly hooked tips; large circular gap absent between anterior parts of premaxilla in dorsal view; disc size moderate, its length 15.8–20.6% SL; disc region D and anterior central portion of disc region A without flattened papillae; head sensory canal pores well developed, including 2 nasal, lacrimal and postorbital, and 3 preopercular pores; body without elongated spots or stripes. Morphological changes with growth and sexual dimorphism of the new species are also described.
日本水域的粘鱼(Gobiesocidae)综述
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