JOHN W. (WES) TUNNELL JR. is a professor of biology, associate director of the Harte Research Institute for Gulf of Mexico Studies, and director of the Center for Coastal Studies at Texas A&M University–Corpus Christi. JEAN ANDREWS is a naturalist, artist, author, and illustrator who was first published on Texas seashells in 1971. She resides in Austin, Texas. NOE C. BARRERA is a malacologist, microphotographer, and book designer at the Center for Coastal Studies. FABIO MORETZSOHN is an assistant research scientist at the Harte Research Institute in systematics and conservation of marine invertebrates.