- Long and slender fin, curving slightly on the leading edge towards a rounded apex.
- The dorsal surface is grey to greyish brown.
- The ventral surface is almost the same color as the dorsal surface with a visible light coloration at the base that extends into the middle of the fin.
- Margins of the leading and trailing edge are darker.
STATUS AND RANGE
The Bigeye Thresher Alopias superciliosus is listed as Vulnerable on the IUCN Red List of Threatened Species™ and is listed in Appendix II of CITES.
Information has been adapted from Abercrombie and Hernandez (2017). Identifying shark fins: implementing and enforcing CITES. Abercrombie & Fish.