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).
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