Frumkin, Joseph A.
Shimada, Kenshu
Article History
Received: 18 December 2019
Revised: 28 February 2020
Accepted: 2 March 2020
First Online: 18 March 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: This study is exclusively based on museum specimens. No live sharks were collected, killed or otherwise harmed in the course of the analysis.