A new replacement name for Chlorostoma lischkei Pilsbry, 1889 (not of Tapparone-Canefri, 1874) (Vetigastropoda: Trochida: Tegulidae)

ABSTRACT

Tegula xanthostigma (A. Adams, 1853) has two shell colour forms: a black form and a brown-green form that was once named as Chlorostoma lischkei Pilsbry, 1889. Recent molecular phylogenetic and ecological studies have demonstrated that these two forms are genetically distinct and furthermore differ in habitat usage patterns. It is thus reasonable to separate them as two different species. The black shell form corresponds to T. xanthostigma, but the name C. lischkei for the brown-green shell form is a junior primary homonym of C. lischkei Tapparone-Canefri, 1874 and thus invalid. We here propose the new replacement name T. kusairo nom. nov. for C. lischkei Pilsbry, 1889.

和文摘要

Tegula xanthostigma (A. Adams, 1853) クマノコガイ（六介）は殻の色彩に黒色型と緑褐色型（後者に対応する名は Chlorostoma lischkei Pilsbry, 1889）の２型をもつことが従来より知られていた。近年，これらの色彩型は遺伝的に区別できるだけでなく，生息適地をも異にすることが示された。よってこれらの色彩２型はそれぞれ別種として区別することが妥当である。この場合黒色型はT. xanthostigmaに対応するものの，緑褐色型に相当する C. lischkei は C. lischkei Tapparone-Canefri, 1874 の新参一次同名であるため無効である。そこで本研究では，C. lischkei Pilsbry に対する新名として T. kusairo nom. nov. を提唱する。また本種の和名は，本邦において伝統的に緑褐色型のクマノコガイへ用いられてきたクサイロクマノコガイ（平瀬與）を継続して使用することを提案する。

http://www.zoobank.org/urn:lsid:zoobank.org:pub:7BEB16DC-38E4-4215-A491-EF550FFE24A2

KEYWORDS:

• Homonym
• Japan
• Korea
• marine gastropod
• nomenclature
• nomen novum
• redescription
• taxonomy
• Tegula kusairo
• Tegula xanthostigma

Acknowledgements

We thank Paul Callomon for providing the information on the type specimen at ANSP, English editing and helpful suggestions. Special thanks are due to Andreia Salvador for providing the photographs of the syntypes of Chlorostoma xanthostigma at NHMUK. For providing the literature information and photograph, we thank So Ishida, Tetsuya Watanabe and Takuma Haga. We also thank Osamu Miura, Yuki Miki, Tomoko Yamamoto, Tomoki Seo, Takumi Saitō, Kazunari Higuchi, Do Van Tu, Kazuki Kimura and Shōta Uchida for sampling and providing information of Tegula xanthostigma and T. kusairo. Bruce Marshall and Paul Callomon provided useful comments on the manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This study was supported by funds from Research Institute of Marine Invertebrates (2017–2018).