Scholarlink

<p><i>Scorpaenopsis gigas</i> (Scorpaenidae), a new species of scorpionfish previously confused with <i>Scorpaenopsis orientalis</i> Randall and Eschmeyer 2002 and <i>Scorpaenopsis oxycephala</i> (Bleeker 1849), is described from the Indo-West Pacific (recorded from the Andaman Sea and East Asia). The new species is characterized by the following combination of characteristics: pectoral-fin rays 19 or 20 (usually 19), some middle rays branched; scale rows in longitudinal series 54–60; pored lateral-line scales 24 or 25 (24); occipital pit extremely shallow, nearly flat; a longitudinal ridge on lateral surface of maxilla absent; lateral lacrimal spine simple; posterior lacrimal spine simple; upper opercular spine simple; scales absent on opercle between upper and lower opercular spines; first dorsal-fin spine length, 4.6–7.8% of SL (standard length); second dorsal-fin spine length 10.9–16.3% of SL; third dorsal-fin spine length 14.4–19.1% of SL; fourth dorsal-fin spine length 13.8–18.8% of SL; snout length 31.8–35.5% of head length; third or fourth dorsal-fin spine longest (both spines of similar length, third dorsal-fin spine length, 97.6–105.6% of fourth spine length); usually many small black blotches scattered on head and body in fresh and preserved specimens. A morecular genetic analysis based on the mitochondrial 16S ribosomal RNA gene showed that the new species was distinct from morphologically similar congeneric species, the most closely-related being <i>S. orientalis</i> and <i>S. oxycephala</i>, separated from the former by genetic distances of 4.1% and 3.1–3.5%, respectively.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Scorpaenopsis gigas, a new Indo-West Pacific species of scorpionfish (Scorpaenidae)

  • 期刊论文

  • 发表日期：

    2025年5月5日

查看全文
  • Tatsuya Matsumoto,
  • Hiroyuki Motomura

摘要

Scorpaenopsis gigas (Scorpaenidae), a new species of scorpionfish previously confused with Scorpaenopsis orientalis Randall and Eschmeyer 2002 and Scorpaenopsis oxycephala (Bleeker 1849), is described from the Indo-West Pacific (recorded from the Andaman Sea and East Asia). The new species is characterized by the following combination of characteristics: pectoral-fin rays 19 or 20 (usually 19), some middle rays branched; scale rows in longitudinal series 54–60; pored lateral-line scales 24 or 25 (24); occipital pit extremely shallow, nearly flat; a longitudinal ridge on lateral surface of maxilla absent; lateral lacrimal spine simple; posterior lacrimal spine simple; upper opercular spine simple; scales absent on opercle between upper and lower opercular spines; first dorsal-fin spine length, 4.6–7.8% of SL (standard length); second dorsal-fin spine length 10.9–16.3% of SL; third dorsal-fin spine length 14.4–19.1% of SL; fourth dorsal-fin spine length 13.8–18.8% of SL; snout length 31.8–35.5% of head length; third or fourth dorsal-fin spine longest (both spines of similar length, third dorsal-fin spine length, 97.6–105.6% of fourth spine length); usually many small black blotches scattered on head and body in fresh and preserved specimens. A morecular genetic analysis based on the mitochondrial 16S ribosomal RNA gene showed that the new species was distinct from morphologically similar congeneric species, the most closely-related being S. orientalis and S. oxycephala, separated from the former by genetic distances of 4.1% and 3.1–3.5%, respectively.