2 Land Snails (including slugs)

Land snails are among the under-appreciated groups of wildlife species in Kansas. Along with earthworms and other inhabitants of soil and grass and forest litter, these organisms fulfill important roles in terrestrial ecosystems. They consumer organic matter produced by other species and are themselves consumed by many vertebrates.

There has not been, to my knowledge, an intensive (or semi-intensive) survey of land snails in Kansas for over 50 years. It is known that the ranges of some species are changing and we certainly do not know the existing status – health and ecological well-being – of this important group of animals in Kansas.


snail coinThere are somewhere between 60 and 80 species that have been, might have been, or could be found in Kansas. Much of the uncertainty revolves around taxonomy – the science of naming and classifying organisms. At this time, for those needing a hard and fast number, try 71 on for size. This list is tentative and what constitutes a “species” is sometimes uncertain. The species found represent some 16 families. Most species belong to one of two families: Polygyridae and Vertiginidae.

In 1959, the “Handbook of Gastropods in Kansas”, Leonard (1959) provided a synthesis of collections of both aquatic and terrestrial gastropods. This preliminary checklist of Kansas land snails comprises the species found after reviewing existing records and conducting new collections.


Checklist of Land Snails and Slugs of Kansas

  • Allogona profunda (Broad-banded Forestsnail)
  • Anguispira alternata (Flamed Tigersnail)
  • Carychium exiguum (Obese Thorn)
  • Carychium exile (Ice Thorn)
  • Catinella vermeta (Suboval Ambersnail)
  • Catinella wandae (Slope Ambersnail)
  • Cochlicopa lubrica (Glossy Pillar)
  • Cochlicopa lubricella (Thin Pillar)
  • Daedalochila dorfeuilliana (Oakwood Liptooth)
  • Daedalochila jacksoni (Ozark Liptooth)
  • Deroceras laeve (Meadow Slug)
  • Deroceras reticulatum (Grey Field Slug)
  • Euchemotrema fraternum (Upland Pillsnail)
  • Euchemotrema leai (Lowland Pillsnail )
  • Euchemotrema leai aliciae (Alice’s Pillsnail)
  • Euconulus dentatus (Toothed Hive)
  • Euconulus fulvus (Brown Hive)
  • Euconulus trochulus (Silk Hive)
  • Gastrocopta abbreviata (Plains Snaggletooth)
  • Gastrocpta armifera (Armed Snaggletooth)
  • Gastrocopta contracta (Bottleneck Snaggletooth)
  • Gastrocopta corticaria (Bark Snaggletooth)
  • Gastrocopta cristata (Crested Snaggletooth)
  • Gastrocopta holzingeri (Lambda Snaggletooth)
  • Gastrocopta pellucida (Slim Snaggletooth)
  • Gastrocopta pentodon (Comb Snaggletooth)
  • Gastrocopta procera (Wing Snaggletooth)
  • Gastrocopta similis (Great Lakes Snaggletooth)
  • Gastrocopta tappaniana (White Snaggletooth)
  • Glyphyalinia indentata (Carved Glyph)
  • Haplotrema concavum (Gray-foot Lancetooth)
  • Hawaiia minuscula (Minute Gem)
  • Helicodiscus notius (Tight Coil)
  • Helicodiscus parallelus (Compound Coil)
  • Inflectarius inflectus (Shagreen)
  • Linisa texasiana (Texas Liptooth)
  • Lucilla inermis (Oldfield Coil)
  • Lucilla singleyanus (Smooth Coil)
  • Mesodon clausus (Yellow Globelet)
  • Mesodon thyroidus (White-lip Globe)
  • Mesomphix capnodes (Dusky Button)
  • Mesomphix friabilis (Brittle Button)
  • Neohelix alleni (Western Whitelip)
  • Neohelix divesta (Ozark Whitelip)
  • Nesovitrea electrina (Amber Glass)
  • Novisuccinea ovalis (Oval Ambersnail)
  • Oxyloma retusum (Blunt Ambersnail)
  • Paravitrea significans (Domed Supercoil)
  • Paravitrea simpsoni (Amber Supercoil)
  • Philomycus carolinianus (Carolina Mantleslug)
  • Punctum minutissimum (Small Spot)
  • Pupoides albilabris (White-lip Dagger)
  • Rabdotus dealbatus (Whitewashed Rabdotus)
  • Stenotrema barbatum (Bristled Slitmouth)
  • Stenotrema stenotrema (Inland Slitmouth)
  • Striatura meridionalis (Median Striate)
  • Striatura milium (Fine-ribbed Striate)
  • Strobilops labyrinthicus (Maze Pinecone)
  • Succinea forsheyi (Spotted Ambersnail)
  • Succinea grosvenori (Santa Rita Ambersnail)
  • Succinea indiana (Xeric Ambersnail)
  • Triodopsis cragini (Post Oak Threetooth)
  • Triodopsis neglecta (Ozark Threetooth)
  • Vallonia parvula (Trumpet Vallonia)
  • Ventridens ligera (Globose Dome)
  • Vertigo milium (Blade Vertigo)
  • Vertigo ovata (Ovate Vertigo)
  • Vertigo tridentata (Honey Vertigo)
  • Webbhelix multilineata (Striped Whitelip)
  • Xolotrema fosteri (Bladetooth Wedge)
  • Zonitoides arboreus (Quick Gloss)

About this checklist:

The nomenclature is based on Bouchetand Rocroi 2005, with the exception of the family Carychiidae as in Oesch et al. (in press). Including Leonard (1959), the following sources were used as guides for preparing the checklist given here. As always, today, taxonomic schemes can change and not all members of the community neccesarily agree on new proposals.

Bouchet, P. and J.-P. Rocroi. 2005. Classification and Nomenclator of Gastropod Families. Malacologia, 47:1–397.

Burch, J.B. 1962. How to Know the Eastern Land Snails. Wm. C. Brown Company Publishers, Dubuque, Iowa. 214 pp.

Leonard, A. B. 1959. Handbook of Gastropods in Kansas. With the technical assistance of E.J. Roscoe and others. Museum of Natural History Miscellaneous Publication no. 20. Lawrence: University of Kansas. 224 pp.

Hubricht, L. 1962. New species of Helicodiscus from the eastern United States. Nautilus 75(3):102-107.

Hubricht, L. 1985. The Distributions of the Native Land Mollusks of the Eastern United States. Fieldiana, Zoology. Publication 1359. Field Museum of Natural History, Chicago, Illinois. 191 pp.

Oesch, R.D., L.E. Watrous, and M.C. Barnhart. In press. Land Snails and Slugs of Missouri. Missouri Dept. of Conservation, Jefferson City, Missouri.

Nekola, J.C. and B.F. Coles. 2010. Pupillid land snails of eastern North America. Amer. Malac. Bull. 28: 1-29 (2010)


The cover page of the “Checklist of the Land Snails of Kansas” from the October 2013 issue of Kansas School Naturalist. If you’d like a copy, contact me or go to http://www.emporia.edu/ksn/.

ksn_lsok_cover_post


 

 

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