1. Predation on sub-Holocene scaphopod mollusks from southern Louisiana Author/Creator: Yochelson, Ellis L. 1928-2006. (Ellis Leon) Publication/Creation: Alexandria, VA : For sale by the Distribution Branch, U.S. Geological Survey Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1278-1285. Access & Availability: Loading