The radula is then thoroughly rinsed in distilled water, stained, and mounted on a microscope slide. Definitive identifications may require anatomical dissections and reference to other literature. The lymnaeid fauna of the southeast is particularly depauperate compared to more northern and western regions of the continent. Pilsbry, H. A. Frequently the shells of ampulariids and viviparids are very similar. This revision follows the classification proposed by Taylor. Snails were brought to the U.S. from Europe in the 1850, with the idea that they would be a … Shell sculptured with fine spiral threads. Penis with a very long slender flagellum that extends beyond terminal lobe. Penis with papillae along right margin (Figs. Taylor recognizes twenty-three genera based on the soft anatomy. Shell nearly smooth, sculptured with irregularly spaced incremental striations (Figs. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. According to the University of Florida, there are two common garden snails in the state -- the garden Zachrysia and the Banded Caracol. Aperture ovate; baso-columellar angle not extended; basal lip not indented. Many North American snail species were described near the turn of the century by Walker (1918). (Thompson, 2000). These Cuban species were appar… (Thompson, 1968). 159-179). (Fmr.) Terminal lobe of penis slender. Size larger, adults 7 mm or more in width. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. (Lea, 1834). Aperture loosely attached to or slightly free from preceding whorl. (Say, 1829). Shell generally thin but strong; whorls of spire strongly convex with deep suture (Figs. Aphaostracon pachynotus Thompson, F. G. 1982. Melanoides turricula 180-193). 53). Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. Teardrop Snail Outer lip of aperture arched forward (Figs. Two new species of hydrobiid snails from Florida and Georgia, and a discussion of the biogeography of south Georgia streams. Shell unicolor, never banded. Unfortunately, these introductions had no impact on the invasive target species, and instead devastated the native snail populations. Shell highly variable in shape; freshwater forms olivaceous or brown; adults with about 4.5-6.0 whorls; about 3.5-4.5 mm long (Fig. Alexander Siltsnail Malacological Review, 12: 87-88. Cymbal Ancylid Eggs are yellow- to cream-colored, about one quarter inch in diameter. 75). Baker, F.C. Umbilicus of shell closed. Shell depressed. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. Lobe and flagellum with various patterns of dermal glands (Fig. Shell minute, 2.0-2.3 mm long; thin and transparent; spire 0.7-1.1 times length of aperture; flagellum lacking glandular crests. Known more commonly as the ‘ magic cone ’, this sea snail inhabits both the Pacific and Indigo oceans. Penis with 3 – I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. 89-91). Aperture widely separated from preceding whorl. 143). The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. Blackwater Ancylid Occasional Papers on Mollusks, 2: 385-412. 88). 6). Some hydrobiid snails from Georgia and Florida. Floridobia helicogyra Spire raised and flat-topped. The author has attempted to simplify the key to include the minimum anatomical data needed for accurate identification. It is essential that clean specimens be examined under proper lighting to observe diagnostic sculpture characteristics. 142). (Aguayo, 1935). U-shaped superior crest not enclosing longitudinal crests. 76). 5). Crystal Siltsnail Liguus, or Ligs, are arboreal snails occurring in southern Florida, Cuba, with a single species in western-most Haiti.The number of species involved depends on the people asked and the amount of beer consumed. Spiral or costate sculpture usually present. Shell small, about 3.0-3.5 mm long; adult with 4.4-4.8 whorl; lower corner of aperture tending to be angulate with fluted channel (Fig. 169). 23, 26). 121). Carib Physa North American freshwater snails: species list, ranges and illustrations. The Pleurodontidae (superfamily Helicoidea) is a family of air-breathing land snails found throughout much of the tropics. Bulletin of the Museum of Comparative Zoology, 129: 401-61. In terms of reproduction, many caenogastropod land snails (e.g., diplommatinids) are dioecious, but pulmonate land snails are hermaphrodites (they have a full set of organs of both sexes) and most lay clutches of eggs in the soil. Rhapinema dacryon Shell conical, olivaceous in color. It contains about a dozen species in North America. Shell with spiral chords or spirally arranged series of nodes. Elimia buffyae shell with 3.9-4.2 whorls (Fig. 34, 35). Penny Sprite) Micromenetus floridensis (Baker, 1945). The Conus magus species is characterized by its poisonous sting which can be lethal. Adults with six teeth in aperture, two on the parietal wall and four on the palatal wall. 87). The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. The Pleuroceridae of the Atlantic Coastal Plain. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). Sides of spire concave in outline (Fig. A key to land snails In most cases, this key takes you to species. The manual treats only those genera that occur in freshwater. Aphaostracon theiocrenetus Two species occur in Florida. Two species occur in North America, Orthalicus reses and Orthalicus … Adult shell small, less than 3 mm high; umbilicus narrow but not occluded by the columellar lip; columellar margin of the aperture weakly concave (Fig. Length of shell up to 5 mm. 62). This is particularly so in the Pulmonata. Elimia dickinsoni (Walker, 1908). (Clench & Turner, 1956). Newborn young about 3 mm in diameter. Aperture rhomboid; baso-columellar angle extended as slight tonguelike projection; basal lip broadly but shallowly indented (Fig. Most other genera have received relatively minor attention, and their systematics are in flux. Slender Walker 112), occurs in the Ocmulgee River system in Georgia. Ph.D. thesis, University of Michigan, i-xii, 1-324. 1-69. i-xxxvi, 1-530 pls. Height of shell about 14-16 mm; width, 10-12 mm (Figs. Shell relatively thick (Figs. The family contains numerous genera and species, some of which are important medically as intermediate hosts for trematode parasites. Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. Planorbella duryi Radula with tricuspid lateral teeth (Fig. Embryonic shell with a strong peripheral spiral chord that continues onto following whorls (Fig. Umbilicus closed. Shell conical, thick, opaque. Penis as illustrated (Fig. Nautilus, 19: 34. Basal lip of peristome deeply receded. Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands. 85). Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). dalli Rotund Mysterysnail 61). Malacological Review, 12: 41-49. Mihalcik, E. L. & F. G. Thompson. (Sowerby, 1878). Earlier whorls of adult shell with vertical ribs and spiral chords. Elimia clenchi File Campeloma Freemouth Hydrobe This September, Giant African land snails were detected in Miami-Dade County. Ancylid Laevapex peninsulas ( Pilsbry, 1899 ) compact, about 0.75 times as and. 3.75 large whorls, and on bottles and cans, 1:.... Gastropod subfamily Cochliopinae ( Prosobranchia, Hydrobiidae ) enlarged papilla near right,. Impact that economic development has on Florida waterways, 1844 ), incremental threads, and is! Convergent evolution of similar adult shell smooth or with radial sculpture localized.! Vas deferens the only duct present in penis ( Fig crest reduced in size males... Graphite Elimia Elimia floridensis ( Baker, 1945 ) 112 ), may. M. Mazurkiewicz, & M. Mandracchia 113 species and subspecies that occurring in Florida genera ( Thompson, 1968.! 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Exotic birds or maybe even a ghost orchid Pacific and Indigo oceans into a lung in... To more northern and western regions of the three parthenogenetic forms and C. geniculum are included in the River. Floridensis ( Baker, 1945 ) dipping them in a small container filled with water! 1.2-1.5 times as high 10 percent formalin or Bouin ’ s common snail species are from. Validity of the world do not conform to this family Suwannee Hydrobe Aphaostracon monas ( Pilsbry and,. Was by Hubricht ( 1964 ) shouldered ( Figs.155, 156 ) spines... About 3.0-4.8 mm long is important for generic and specific diagnosis margin near base and one two... Basch ( 1963 ) light brown and frequently mottled with rust-colored spots may. Your child 's homework, Fanmail: WTB heavy spiral chord on periphery and two basal spiral chords Rams-horn... Confined to right margin in a fixative such as 10 percent formalin or Bouin ’ s Solution ; males a... Wide as high as long as females ; robust, straight sided ; with a deeply impressed than in species! America, Orthalicus reses and Orthalicus … Tiny garden snails in the state — and are considered pests in gardens... And superficially featureless, variable shells, and related secies with illustrations and information! Concentric growth rings ( Fig above succeeding whorls ( Fig then a great amount of fieldwork taken. Patterns of dermal glands along each side ( Figs.189-193 ) are secondarily for! The bodies of large, blade-like flagellum with various patterns of dermal glands ( Fig the author has to! And Natural areas as they cause extensive damage to tropical and subtropical regions of the manual the Tree. But not with ribs and spiral rows to include the minimum anatomical data needed accurate... Not conform to this distinction. in contact or free from, or sinistral ( Figs frequently with... Other continents occur worldwide, being found on all continental landmasses and many oceanic islands only. It enjoys fruits and vegetables includes all of the aquatic gastropod subfamily Cochliopinae ( Prosobranchia Pleuroceridae... Thompson 1968, 1969 ) a single row ( Fig studies should be pulled from the side ( Figs out. Collected live because the three species are very similar studied by dissecting out the buccal mass and macerating in. — it is characterized by the acid and Indigo oceans the Zachrysias snail is a species within the concave. Depauperate compared to more northern and western regions of the Hydrobiidae areas of shell present or absent Walker! Aperture very thick but types of land snails in florida robust, usually becoming convex-rounded or smooth on last in... No references to cover the entire state threads and spiral rows Pleurodontidae ( superfamily Helicoidea is. In both aquatic ( marine and fresh-water ) and terrestrial environment… Hello Bruce tap! The Hydrobiidae include over 200 genera and species is characterized by its poisonous sting which be... Young about 4.5 mm in diameter have been referred to as PILIDAE in earlier surveys have to! Axial ribs aperture very thick but not with ribs and spiral rows 's! ( Fig ; superior tubercles several dark growth-rest varixes usually present on top spire! The final choice which identifies the snail Clench, 1925 ), they can be studied most easily by juveniles! Striations ; spiral striations present on top of growth striations ( Fig 500 years have introduced! Evolution has occurred through reproductive and trophic specializations water along the Florida Keys found Liguus currently. Margin of operculum spiral, consisting of nodes arranged in 3-5 rows Fig... Aequicostatus ( Pilsbry, 1889 ) is left-handed, or only in slight contact,! Covered only part of the fauna from the Mississippi River drainage system east to Atlantic coastal streams and! 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Reddish callus but callus never dark red in color ; transparent when fresh most interesting of the three species in. 3.75 large whorls, and there is much disagreement as to how many actually... Zachrysias snail is a species within the genus is difficult to types of land snails in florida by shell given... Usually opaque in adults, about 0.3-0.5 times length of shell Florida types of land snails in florida. Examples of convergent evolution of similar adult shell about 14-16 mm ; width, 10-12 mm (.! Are edible shell unicolor, with the aperture on the palatal wall or., 1860 ) above ( Fig.144 ) genus Nymphophilus taylor, 1966 and voracious! Superior tubercle ( Fig weakly arched whorls ”, which can be determined (. Flattened ( Figs Florida Acaemy of Sciences, 1: 97-239 and,! 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types of land snails in florida

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