Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Frozen specimen of an adult E. vipera collected from the Celtic Sea in November 2015. White arrows point to dorsal and opercular spines, respectively. *Colour should be used in print*. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
