Picture Guide of Some Tennessee Snails & Slugs for Survey Inspectors

by

Patrick Marquez

USDA-APHIS-PPQ

222 Kansas St.

El Segundo, CA 90245

Kathryn E. Perez, Ph.D.

Department of Biology

University of Texas Pan American

University of Texas Rio Grande Valley

Last update April 22, 2015

(Subject to change) 1

Agriolimacidae, Deroceras laeve (Müller)

2

Bradybaenidae, Bradybaena similaris (Férussac)

3 This species was a first record for TN on April 8, 2015.

Bradybaenidae, Bradybaena similaris (Férussac)

4 Shell striations irregular and wavy.

Bradybaenidae, Bradybaena similaris (Férussac)

5

Genitalia with 2 mucus glands connecting to a single

stylophore.

Gastrodontidae, Ventridens demissus (A. Binney)

6

Gastrodontidae, Ventridens demissus (A. Binney)

7 Aperture with thickened white lining inside base.

Limacidae, Lehmannia valentiana (Férussac, 1821)

8

Limacidae, Limax maximus (Linné)

9

10

Oxychilidae, Oxychilus (O.) alliarius (O. F. Müller)

Genitalia of O. alliarius.

11

Oxychilidae, Oxychilus (O.) alliarius (O. F. Müller)

Pleuroceridae, sp. of

12

Polygyridae, sp. of (juvenile)

13

Sharp angled periphery & undeveloped lip are diagnostic characters for distinguishing a juvenile from adult.

Polygyridae, Mesodon thyroidus (Say, 1816)

14

Polygyridae, Mesodon thyroidus (Say, 1816)

15

Vestigial parietal tooth. Missing in some specimens.

Detail of spiral striations.

Polygyridae, Patera appressa (Say, 1821)

16

Polygyridae, Patera appressa (Say, 1821)

17

Parietal tooth long and curved. Columellar end of the lip concave appressed over umbilicus.

Polygyridae, Polygyra septemvolva (Say, 1818)

18

Polygyridae, Polygyra septemvolva (Say, 1818)

19

Polygyridae, Triodopsis hopetonensis (Shuttleworth, 1852)

20

Polygyridae, Triodopsis hopentonensis (Shuttleworth, 1852)

21

Detail of umbilical papillae which is diagnostic of this species.

Polygyridae, sp. of UNKNOWN ???

22

Polygyridae, sp. of UNKNOWN ???

23

Notice closed umbilicus.

Succineidae, sp. of. No specialist available for this group.

24

25

Acknowledgements

Greg Bartman, Los Angeles CA Kathryn Perez, Edinburg TX

David G. Robinson, Philadelphia PA

Special thanks to Kathryn Perez for her time and effort identifying Polygyridae specimens.

26

References

Bickel, D.

1968. Checklist of the Mollusca of Tennessee. Sterkiana, 31:15-39.

Bogan, A.A., C.C. Coney, Tarpley, W.A.

1982. Distribution of the Polygyridae (Mollusca: Pulmonata) of Tennessee. J. Tenn. Acad. Sci, 57:16-22.

Bogan, A. E., Parmalee, P. W.

1983. Tennessee’s Rare Wildlife. Volume II: The Mollusks. Tennessee Wildlife Resource Agency. 124 pp.

Coney, C.C., Tarpley, W. A., Warden, J. C., Nagel, J. W.

1982. Ecological Studies of Land Snails in the Hiwassee River Basin of Tennessee, USA. Malacological Review, 15:69-106.

Hubricht, L.

1964. The Land Snails from the Caves of Kentucky, Tennessee, and Alabama. National Speleological Society, 26(1): 33-36.

Hubricht, L.

1973. The Land Snails of Tennessee. Sterkiana, 49:11-17.

Hubricht, L.

1985. The Distributions of the Native Land Mollusks of the Eastern United States. Fieldiana, Zoology New Ser: 24. 191 pp.

Lutz, L.

1950. A List of the Land Mollusca of Claiborne County, Tennessee with Description of a New Subspecies of Triodopsis. Nautilus, 63:99-105, 121-123.

Pilsbry, H.

1939. Land Mollusca of North America (north of Mexico). Monographs of the Academy of Natural Sciences of Philadelphia, (3), 1(1): 1-573. 1940.

Kathryn E. Perez, Ph.D.; Department of Biology; University of Texas Rio Grande Valley; 1201 W. University Dr.; Edinburg, TX 78539, U.S.A. http://northamericanlandsnails.com/index.html 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.

Personal Communications

27

http://bioweb.uwlax.edu/bio210/s2012/ (Multiple Organisms by Univ. of Wisconsis-La Crosse) Accessed 08/20/2014. http://www.fwgna.org/species.html (FWGNA) Accessed 08/21/2014. http://ellipse.inhs.uiuc.edu:591/mollusk/biblio.html (Mollusk Bibliography Database) Accessed 08/21/2014. https://www.flmnh.ufl.edu/malacology/fl-snail/snails1.htm (ID Key to Freshwater Snails of FL) Accessed 08/21/2014. http://www.carnegiemnh.org/science/mollusks/va_imagegallery.html (Land Snails & Slugs of Mid-Atlantic and Northeastern US) Accessed 08/26/2014. http://northamericanlandsnails.com/index.html (Dr. Kathryn E. Perez) Accessed 08/27/2014.

Websites Accessed