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. 2016 Apr 14;2:10. doi: 10.1186/s40851-016-0046-3

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© Suzuki et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 5 — Histological analysis by hematoxylin-eosin (HE) staining of the extraocular muscles in larval, metamorphic and adult lampreys. a Small larva (3.5 cm, about half a year old). b Large larva (10 cm). c Metamorphic lamprey. d Adult lamprey a1–d1: External sections; a2–d2: External sections, colored; a3–d3: Medial sections; a4–d4: Medial sections, colored