Nakayama Ryo, Sasaki Takenori, Nakano Tomoyuki
Department of Zoology, Division of Biological Science, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan. Seto Marine Biological Laboratory, Field Science Education & Research Center, Kyoto University, 459 Shirahama, Nishimuro, Wakayama, 649-2211, Japan..
Zootaxa. 2017 Jun 16;4277(2):237-251. doi: 10.11646/zootaxa.4277.2.4.
A group of small lottiid species in Japan, the Lottia kogamogai complex, was phylogenetically analyzed based on the mitochondrial COI gene. As a result, L. kogamogai is subdivided into two geographic clades. Lottia kogamogai s.s. is limited to southern temperate Japan. The northern population formerly considered an intraspecific variation of the species is shown to be a distinct new species, here described as Lottia goshimai n. sp. The new species is distinguishable from L. kogamogai not only genetically, but in radular morphology and shell sculpture.
基于线粒体COI基因对日本的一组小型笠贝物种——笠贝复合体进行了系统发育分析。结果显示，笠贝被细分为两个地理分支。狭义笠贝仅限于日本南部温带地区。以前被认为是该物种种内变异的北方种群实际上是一个独特的新物种，在此被描述为新种五岛笠贝。新物种不仅在基因上，而且在齿舌形态和贝壳纹饰上都与笠贝不同。
