Vilhelmsen, Lars http://orcid.org/0000-0002-5593-5722
Article History
Received: 19 July 2019
Revised: 15 October 2019
Accepted: 22 October 2019
First Online: 5 November 2019
Compliance with ethical standards
:
: The author declares no conflict of interest.
: No animals were harmed during the production of this paper. The study was based entirely on dead specimens deposited in zoological collections.