There was an error published in Biology Open6, 732-740; doi: 10.1242/bio.024588

These errors are detailed below and the original article has been changed correspondingly.

The name of the co-author, Georges Hoellerich, was spelt incorrectly and has been changed to Georges Hollerich.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.