Picture Guide of Some Texas Snails & Slugs for Survey Inspectors by Patrick Marquez USDA-APHIS-PPQ 11840 S. La Cienega Blvd. Hawthorne, CA 90250 Last update July 25, 2012 1 (Subject to change) Ampullariidae, Pomacea insularum (d’ Orbigny) 2 Bradybaenidae, Bradybaena similaris (Férussac) 3 Bulimulidae, Bulimulus sporadicus (d'Orbigny) 4 Bulimulidae, Rabdotus dealbatus (Say) 5 Gastrodontidae, Ventridens demissus (A. Binney) 6 Gastrodontidae, Zonitoides arboreus (Say) 7 Helicidae, Cornu aspersum (Müller) 17 mm 8 Helicinidae, Helicina (Oligyra) orbiculata (Say) 9 Limacidae, Lehmannia valentiana (Férussac) 22 mm 10 Lymnaeidae, Fossaria sp. 11 Physidae, sp. of 12 Planorbidae, Planorbella trivolvis Say 13 Polygyridae, Linisa texasiana (Moricand) 14 Polygyridae, Mesodon thyroidus (Say, 1816) 15 Polygyridae, Polygyra cereolus (Mühlfeld, 1818) 16 Polygyridae, Praticolella mexicana Perez 17 Polygyridae, Praticolella taeniata Pilsbry 18 Polygyridae, Triodopsis hopetonensis (Shuttleworth) 10 mm 19 Strobilopsidae, Strobilops texasiana Pilsbry & Ferriss, 1906 20 Subulinidae, Rumina decollata (Linné, 1758) 14 mm 21 Succineidae, Calcisuccinea sp. 22 Personal Communications Kathryn E. Perez, Ph.D., Department of Biology, University of Wisconsin at La Crosse, 1725 State Street, La Crosse, WI 54601, U.S.A. http://www.uwlax.edu/biology/faculty/perez/ David G. Robinson, Ph.D., USDA APHIS PPQ, Department of Malacology, Academy of Natural Sciences, 1900 Ben Franklin Parkway, Philadelphia, Pennsylvania 19103, U.S.A. Acknowledgments Thanks to the Survey Inspectors for intercepting these specimens making this possible. Thanks to Dr. Bram Breure (Bulimulus Expert, Netherlands) for identifying Bulimulus sporadicus specimens. Special thanks to Kathryn Perez for her time and effort identifying Polygyridae specimens. Jennifer Bongolan for her photo editing skills on some of the images. 23 References Cheatum, E. P. & Richard W. Fullington 1971a The Aquatic and Land Mollusca of Texas. Part One: The Recent and Pleistocene members of the gastropod family Polygyridae in Texas. Dallas Museum of Natural History, Bulletin 1(1): 1- 74. 1971b The Aquatic and Land Mollusca of Texas. Supplement: Keys to the families of the Recent Land and Freshwater snails of Texas. Dallas Museum of Natural History, Bulletin 1(Suppl.): 1-18. 1973 The Aquatic and Land Mollusca of Texas. Part Two: The Recent and Pleistocene members of the Pupillidae and Urocoptidae (Gastropoda) in Texas. Dallas Museum of Natural History, Bulletin 1(2): 1-67. Perez, K.E. 2011. A new species of Praticolella (Gastropoda: Polygyridae) from northeastern Mexico and revision of several species of this genus. The Nautilus 125(3): 113-126. Pilsbry, Henry 1939 Land Mollusca of North America (north of Mexico). Monographs of the Academy of Natural Sciences of Philadelphia, (3), 1(1): 1-573. 1940. 24 .