A new species of anchovy, Encrasicholina sigma (Teleostei, Clupeiformes, Engraulidae), from Sulawesi, Indonesia
A new species of anchovy, Encrasicholina sigma (Teleostei, Clupeiformes, Engraulidae), from Sulawesi, Indonesia
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凤尾鱼新种，Encrasicholina sigma（Teleostei，Clupeiformes，Engraulidae），来自印度尼西亚苏拉威西岛
DOI：
10.11646/zootaxa.4750.2.9
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发表时间：
2020
期刊：
影响因子：
0.9
通讯作者：
MOTOMURA HIROYUKI
中科院分区：
文献类型：
--
作者：
HATA HARUTAKA;MOTOMURA HIROYUKI
The new anchovy Encrasicholina sigman. sp. is described on the basis of 20 specimens collected from Sulawesi, Indonesia. Although the new species can be distinguished from all other congeners except for Encrasicholina pseudoheteroloba (Hardenberg 1933) by having a long upper jaw reaching to posterior margin of preopercle, dorsal and anal fins with two unbranched rays, an exposed bony urohyal, and spine-like scutes on the abdomen, E. sigma is distinguished from E. pseudoheteroloba by lower total gill-raker counts on the first, second, third, and fourth gill arches, and on the posterior face of the third gill arch (37–42, 31–35, 18–23, 16–20, and 4–7, respectively vs. 45–55, 34–45, 22–29, 19–25, and 4–9 in E. pseudoheteroloba) and a longer head (25.2–27.0% of SL vs. 22.8–27.5%) and shorter anal-fin base (12.9–14.8% of SL vs. 13.8–18.7%).
