Movie S2.

Conus tessulatus attempting to envenomate a fish. The snail extends its proboscis towards the fish, but when it contacts the fish fin, it apparently ejects a radular tooth and a cloud of venom is released. This records an unsuccessful attempt by Conus tessulatus to prey on fish (still photos from this video are included in Fig. 5).

Insights into the origins of fish hunting in venomous cone snails from studies of Conus tessulatus

Joseph W. Aman, Julita S. Imperial, Beatrix Ueberheide, Min-Min Zhang, Manuel Aguilar, Dylan Taylor, Maren Watkins, Doju Yoshikami, Patrice Showers-Corneli, Helena Safavi-Hemami, Jason Biggs, Russell W. Teichert, and Baldomero M. Olivera

PNAS. 2015. 112:5087-5092 DOI: 10.1073/pnas.1424435112