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. 2015 Oct;11(10):20150763. doi: 10.1098/rsbl.2015.0763

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© 2015 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Burgess Shale polychaetes. (a) Canadia spinosa, United States National Museum of Natural History (USNM) 199655. (b) Canadia spinosa USNM83929b. (c) Canadia spinosa USNM275517. (d) Burgessochaeta setigera USNM198701. (e) Burgessochaeta setigera USNM198699. Pa, palps; InvP, inverted proboscis; Mo, mouth; EvP, everted proboscis; NoCh, notochaetae; NeCh, neurochaetae. Numbering indicates segmental identity, H identifies chaetae on the head.