# No New Species! With Takahiro Sugiyama, Ryutaro Goto, & Chloé Fourreau

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Text version: https://stenobird.com/podcast/new-species-3517520/no-new-species-with-takahiro-sugiyama-ryutaro-goto-chlo-fourreau.md
Podcast: [New Species](https://stenobird.com/podcast/new-species-3517520)
Published: 2026-04-01T14:43:15+00:00
Episode link: https://podcasters.spotify.com/pod/show/newspeciespodcast/episodes/No-New-Species--With-Takahiro-Sugiyama--Ryutaro-Goto---Chlo-Fourreau-e3h9k04
Audio file: https://anchor.fm/s/3a86c1f0/podcast/play/117804484/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-3-1%2Fff27644b-3619-b181-37ee-48e809feae00.mp3
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Duration seconds: 2263

## Resource

Sometimes, a collection of new species turns out to be… no new species! Takahiro Sugiyama, Ryutaro Goto, and Chloé Fourreau began studying the unique ectoparasitic scale worm Gastrolepidia clavigera in part because of its fascinating diversity of color, likely contributing to its ability to camouflage on sea cucumbers. After some genetic work, they found that this entire rainbow of scale worms all actually seem to belong to the same species! Takahiro Sugiyama, Ryutaro Goto, and Chloé Fourreau’s paper “Host specific camouflage in a holothurian-ectoparasitic scale worm: testing the host-race hypothesis using COI and genome-wide SNP data” is in volume 173 of Marine Biology It can be found here: https://doi.org/10.1007/s00227-025-04744-y Episode image credit: Takahiro Sugiyama and Ryutaro Goto A New Species episode with Chloé on Polychaete worms: https://open.spotify.com/episode/0aH2bPNb4u3wOrONIYfZkp?si=7i0lzzSlSjWfsXce436-3g Follow Chloé on instagram and Bluesky: @chaoticchloeia Follow the MISE lab on instagram: @mise_lab Read Takahiro’s recent paper about the scale worms that live on sea stars: doi.org/10.3800/pbr.15.289 Original description of G. clavigera : https://www.biodiversitylibrary.org/item/50342#page/8/mode/1up Be sure to follow New Species on Bluesky (@newspeciespodcast.bsky.social) and Instagram (@NewSpeciesPodcast) and “like” the podcast page on Facebook (www.facebook.com/NewSpeciesPodcast). Music in this podcast is "No More (Instrumental)," by HaTom (https://fanlink.to/HaTom) If you have questions or feedback about this podcast, please e-mail us at NewSpeciesPodcast@gmail.com If you would like to support this podcast and enjoy bonus episodes, please consider doing so at https://www.patreon.com/NewSpeciesPod If you would like to make a one-time co…

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