BULLETIN OF MARINE SCIENCE. 00(0):000–000. 0000 doi:10.5343/ 27 Bulletn of Marine Science © 2011 Rosenstel School of Marine and Atmospheric Science of the University of Miami Bulletin of Marine Science © 2019 Rosenstiel School of Marine & Atmospheric Science of the University of Miami Portraits of Marine Science Bull Mar Sci. 95(1):27–28. 2019 https://doi.org/10.5343/bms.2018.0058 Swift strike by the gastropod Scaphella junonia on its gastropod prey Americoliva sayana José H Leal * , Rebecca A Mensch Bailey-Matthews National Shell Museum, 3075 Sanibel-Captiva Rd, Sanibel, Florida 33957. * Corresponding author email: <jleal@shellmuseum.org>. B We record for the frst time a strike by the volutid Scaphella junonia (Lamarck, 1804) (“junonia”) on its preferred prey, the lettered olive, Americoliva sayana (Ravenel, 1834), and the ensuing reaction of the latter to the attack. Tree junonias were collected by one of us (RA Mensch) during the Gulf of Mexico expedition, February 23–26, 2018, of R/V Weatherbird II, (GS Herbert, Chief Scientist). Te junonias were kept alive in a 208-L tank with a layer of sand of similar granulometry to the substrate at the collecting site, and fed lettered olives. Te male specimen featured here measures 82 mm and was collected on February 26, 2018, at Station XXI N, 26°29.414´N–26°28.684´N, 83°29.553´W–83°29.049´W, 55.5–54.6 m depth. Te specimens will be deposited at the GS Herbert West Florida Shelf Collection, School of Geosciences, University of South Florida. Mollusk-eating volutids typically envelop their prey within the posterior part of the lon- gitudinally folded foot, positioning the head in a ventral and posterior direction, into the “chamber” thus formed to reach the prey (Ponder 1970, Bayer 1971, Vermeij 1978, Morton 1986, Bigatti et al. 2009, 2010). Morton (1986), after observing Melo melo (Lightfoot, 1786) feeding on gastropods, remarked that “possibly a venom is produced from a pair of accessory