Until recently the entire knowledge of the Florida freshwater snail fauna was based on miscellaneous papers dealing with single species, groups of closely related species or single river systems. Spire depressed, much less than height of aperture, occasionally planular (Figs. 112), occurs in the Ocmulgee River system in Georgia. University of Illinois Press, Urbana. Revista de Biologia Trpical, 51 (supplement): 1-299. Shell with about 4.5-5.0 whorls; about 3.0-4.8 mm long (Fig. MESZAROS: It's not clear how these snails entered Florida again. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). Penis with a large, blade-like flagellum with continuous heavy dermal glands along each side (Figs. Amphibious; moves by step-like mode of progression (Fig. Burch, J. 119). 143). 124). The following key includes all of the species that occur in Florida and some that occur in Alabama, Georgia, and South Carolina. Native and Invasive Land Snails Hawaiian Snails ( Partulina virgulata) From Molokai Island, Hawaii, 1900s-1960s Giant African Snails ( Lissachatina fulica) From Mariana Islands, North Pacific Ocean, 1950 Rosy Wolf Snail ( Euglandina rosea) From Gulf Co., Florida, 1983 Exhibit Area On the Brink Theme Warning Story Tags: Brink Invasive Invertebrates Serrated Crownsnail Gainesville, Florida 32611-7800. Average length about 5.5 mm (Figs. Moderately large, thick-shelled operculate snails. Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). In the USA, it was first identified in New Orleans in 1939, but now is found in the Gulf Coast states from Florida to Texas, as well as in Puerto Rico and Hawaii. Apex of shell slightly convex in outline. Shell subcircular, smooth, often encrusted with dark material. 135). As was anticipated, further work on the systematics of the southeastern freshwater snail fauna created the need for subsequent revision in 1999, and for this updated version. (Say, 1829). Outer lip of aperture nearly straight in lateral profile (Figs. The giant African land snail is back in Florida after having been declared eradicated twice. Shell with spiral chords or spirally arranged series of nodes. Incremental striations uniformly weak. Gray to brownish-yellow in color. Apex flat with narrow threadlike keel. Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Radial riblets on entire surface of shell except apex. Shell squat, compact, cylindric-conical in shape, thick and opaque. Wm. Basal lip of peristome deeply receded. 136, 138). Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. Video. Common name: Florida applesnail Taxonomy: available through Identification: This species is the largest freshwater gastropod native to North America (Burch 1982). 17, 29-32), shell usually banded in Florida forms. Length of shell 2.1-2.8 mm (Fig. In 1976 in the St. Johns River 1 found Melanoides tuberculatus with population densities of 10,000/m2. Aperture relatively ample (Figs. Average length about 4 mm (Figs. Shell with strong vertical ribs on spire; spiral chords vestigial, confined to spiral series of knobs on top of vertical ribs; adults small, about 13-16 mm long (Fig. (Thompson, 2000). Shell globose with a short depressed spire; body whorl ample; umbilicus closed. (Thompson, 1968). The snails remain a threat in Hawaii and the Caribbean after their eradication in Florida in 2021. The basic shell morphology of the PLANORBIDAE is left-handed, or sinistral (FIGS. Shell conical with strongly arched whorls and a deeply impressed suture. Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. Shell elongate-conical, with about 5-7 whorls. Micromenetus brogniartiana 117). Florida town quarantined after discovery of a giant African land snail EENY148/IN305: Tree Snails of Florida, Drymaeus - University of Florida Shell usually with raised spiral threads around periphery, frequently the uppermost thread has conical or triangular spines (Figs. Florida eradicates eight-inch snail for the second time in 10 years 7-9). Penis filament black. Operculum neomelanian, with a small, rapidly expanding nucleus located near the basal margin (Fig. The primary differences between the two families are based on soft anatomy. Malacologia, 23: 81-82. Suture simple, not crenulated. Identification KeysThese files are all keys for the identification of various kinds of organisms. Outer lip nearly straight and parallel to axis of shell in adults (Fig. Thompson, F. G. & R. Hershler. Never preserve shell specimens in formalin. Umbilicus variable. Peristome incomplete around aperture. Shell larger, 2.8-4.6 mm long; adults with 4.0-4.9 whorls; spire longer, 0.9-1.3 times height of aperture; superior tubercles not arranged in oblique longitudinal series. Florida Applesnail Widely umbilicate. Umbilicus closed or narrowly perforate. 1905. Penis with different arrangement of papillae than above. Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. Snails and Slugs - Gardening Solutions - University of Florida This is particularly so in the Pulmonata. Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. (Walker, 1908). Haitia cubensis Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. 148). Outer lip of aperture strongly sinuous in lateral profile (Fig. 101). (Sowerby, 1878). 5). 118). Mantle spotted with black, shaded or unmarked; terminal lobe of penis with complex crests that cause it to look like an animals head; flagellum slender, with scattered and discontinuous glands along edge (Figs. The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. Shell moderately large, 3.7-4.5 mm long; spire 1.00-1.35 times length of aperture; shell with 4.8-5.4 whorls. Those had gray-brown flesh. 5: 1-140. Shell with 4.4-5.0 whorls; about 3.7-5.2 mm long. The reader will discover how very little we know about any genus occurring in Florida. USDA APHIS | Mollusks Blue Spring Hydrobe (Menke, 1839). RELATED: Proof of megalodon extinction is in their teeth, scientists say. Apex about 0.4-0.5 times length of shell. Campeloma floridense Biomphalaria havanensis terrestrial snails affecting plants in Florida - University of Florida Florida eliminates giant snail that can eat houses - Phys.org Littoridinops palustris Shell coiled to the left, with the aperture on the left side (Figs.147-158). 161, 164, 167). Walkerana, 13: 1-108. Earlier whorls of adult shell with vertical ribs and spiral chords. Umbilicus narrow, deep (Fig. (Clench & Turner, 1956). Goodrich, C. 1942. 48). 151, 152). The other three forms, C. limum (Anthony, 1860), C. floridense Call,1866 and C. parthenum Vail, 1979, are exclusively apomictic parthenogens and have been separated on the basis of aperture coloration, embryonic shell coloration, and contour of the outer lip (Vail 1979a). (Anthony, 1860). 125); accessory crest absent on penis. Whorls straight-sided, not scalariform; suture hardly distinct; aperture terminating at periphery of last whorl; vertical ribs weaker and closely spaced; adult size about 25-30 mm long (Fig. Small- or medium-sized snails need to be identified with the aid of a binocular dissecting microscope that is equipped with an ocular micrometer calibrated to 0.1 mm accuracy so that precise measurements can be made. One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. Penny Sprite) Micromenetus floridensis (Baker, 1945). 23, 26). Florida's Apple Snails | FWC - Florida Fish And Wildlife Conservation Taylor, D. W. 2003. Apical whorls raised to form a point on top of spire. An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. Malacological Review, 24: 55-72. Thiarids are ecologically significant because they tend to replace native snails where they are introduced and because of their abundance. Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. Fossaria cubensis Peninsula Ancylid A parasite that can cause fatal disease in people and animals has been detected in South Florida (South Florida Sun-Sentinel) A dangerous parasite found in the giant African land snails that. Malacological Review, 12: 41-49. Haitia bermudezi Floridobia alexander 141). Rotund Mysterysnail Shell with 5.0-6.5 whorls; about 3-5 mm long (Fig. Flatwood siltsnail 159-179). 204-207), often eroded in older specimens. Amnicola rhombostoma There is much disagreement as to how many species actually exist. Suture of whorls more deeply impressed than in previous species. Suture relatively deep, Whorls of spire rounded. Apex of shell flat-topped, but sunken below periphery of last whorl. A single glandular crest present on apex of terminal lobe (Figs. Florida's Department of Agriculture and Consumer Services said that a Pasco County master gardener reported seeing a giant African land snail in the New Port Richey area on June 23. Being nocturnal, these pests aren't always feeding when you're scouting. Identification Damage from snail and slug pests appears as oblong, irregular holes at both the margin and the center of leaves and flowers. (Say, 1829). Campeloma geniculum (Conrad, 1834) is readily recognized by its obese, solid shell; it usually has a normal proportion of males in its populations, although some populations are apomictic parthenogens. Penis with 3 I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. Thin and translucent or transparent. Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). dalli Essentially identical shells occur repeatedly among unrelated genera and subfamilies. This will lead you to the final choice which identifies the snail. Typically, land snails live on or near the ground, feed on decaying plant matter, and lay their eggs in the soil. Subspecies bear the same name as the nominate subspecies, as is consistent with the standard used by the American Fisheries Society for fishes, and by other societies for other classes of animals. Lyogyrus retromargo Interior of adult aperture with brownish tinge. 89). (Vail, 1979). (Aguayo, 1935). 113). Vail, V. A. Shell conical or cylindric-conical; light to dark brown. In some genera, eggs are deposited above the water in dry clusters on stems, trees, walls, etc. The shell characters given above for separating the families apply only to Florida species. Prepared by Fred G. Thompson, Fmr. The Florida Department . 81). Unlike other brown-tinted giant snails, this. Height of shell about 14-16 mm; width, 10-12 mm (Figs. Sexes strongly dimorphic in size, males about half as long as females. 164, 167). It was well received, and it served the interests and needs of many people. Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. Mantle cavity with gill on dorsal surface. Snail Kite: Species Profile - National Park Service The specie prefer quite clear water, of lakes and backwaters of streams andsprings. 1962. Florida. 202, 208). Shell usually corpulent, brown or green, generally opaque, but occasionally translucent in juveniles. Two species occur in Florida. Armored Siltsnail Rasp Elimia Tarebia granifera Columellar margin of aperture wide, rounded in front like a spindle. Aphaostracon theiocrenetus Shell with a brownish hue. (Haldeman, 1841). Nautilus, 97: 68-69. 158). Shell usually large, about 12-16 mm long. (Lea, 1842). giant applesnail (Pomacea maculata) - Species Profile - USGS Amber to milky white in color (Figs. 75). Penis as illustrated (Fig. Apical whorls bluntly rounded and not conspicuously elevated. Conical Siltsnail Whorls 3.8-4.3. Only three widely distributed species occur in Florida. Acad. Vertical ribs smooth along the periphery, strongly developed (Fig. Floridobia fraterna Some hydrobiid snails from Georgia and Florida. Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda). Umbilicus narrow, without a strong circum-umbilical ridge, outer lip without a callus on inner surface. (Lea, 1838). Outer lip straight in lateral profiles. Little is known about these animals, and diverse opinions exist as to how many species are recognizable. 115a, 115b). Campeloma limum Florida's . Mesa Rams-horn Goblin Elimia) Elimia vanhyningiana (Goodrich, 1921). Thompson, F. G. 1982. The manual treats only those genera that occur in freshwater. Two new species of hydrobiid snails from Florida and Georgia, and a discussion of the biogeography of south Georgia streams. 1934. Review of the Planorbidae of Florida with notes on other members of the family. Snails on corn. Approximately 35 species have been described. 110, 111, 68). 12). Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. 61). (Thompson, 1968). GAINESVILLE, Fla., Feb. 26 (UPI) -- University of Florida researchers have confirmed the presence of a deadly parasite in three non-native species of snails that have colonized South Florida. The profile of the whorls and their comparative size can also help determine the species. 2002. (Walker, 1925). Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. (Pfeiffer, 1839). 173). Incremental striations intensified near nucleus and umbilicus. Aperture broadly ovate in shape; parietal wall weakly in contact or solute from body whorl; whorls more prominently arched and with a deeper impressed suture. Spiral angulation on whorls sharp and prominent in juveniles, usually becoming convex-rounded or smooth on last whorl in adults. Others were new taxa not found in earlier surveys. Invasive giant African land snail found in Florida can carry meningitis Goldenhorn Marisa Carib Physa 201, 207). Shell with 3-4 whorls. Clench, W.J., & R. D. Turner. About 4.2-4.6 weakly arched whorls with a weakly impressed suture. This study was a landmark contribution to the malacology of the southeast, and it summarized the known fauna of western Florida. 110). Officials in Florida are again battling a highly invasive, extraordinarily destructive giant snail species that also happens to be capable of spreading parasitic worms that invade human brains . (Pilsbry, 1890). Sculpture consisting of incremental striations only. Its brown spotted exterior provides camouflage, making it a challenge to spot. Pygmy Siltsnail) Floridobia parva (Thompson, 1968). NERITIDAE (Thompson, 2000). JACKSONVILLE, Fla. - An invasive giant African snail that has already had to be eradicated twice in the last 50 years in Florida is back and one county is on high alert. Crystal Siltsnail Now officially known as simply a Snail Kite, the subspecies from Florida and Cuba (Rostrhamus sociabilis plumbeus) formerly known as the Everglade Snail Kite was listed as endangered in 1967.The range of the Florida population of Snail Kites is restricted to watersheds in the central and . From a distance, the snail kite generally resembles a medium-sized hawk with broad wings. Click on images to enlarge them. Shell translucent. Floridobia porterae Whorls flat-sided with suture weakly impressed. Shell conical, olivaceous in color. Thick-lipped Rams-horn Aperture comma-shaped, tightly appressed against preceding whorl. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. Operculum nearly multispiral with four large, slowly expanding whorls (Fig. A preliminary revision of Florida Lioplax (Gastropoda: Viviparidae), with a description of Lioplax talquinensis n.sp. Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). Fossaria modicella Pseudotryonia brevissimus Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. Another variety, with cream-colored flesh and mottled brown shells, was detected in 2022. Credit: Craig Pittman. Shell medium to large (12-75 mm). (Fig. 137, 139). Six species are known to occur in Florida. The reader may be troubled by the imprecise shell characteristics that are used in the key. Proc. Operculum constructed entirely of concentric rings (Fig. Shell medium-sized, 3.0-3.8 mm long; thinner, translucent or transparent in life; tear-shaped; spire raised and nearly straight-sided, pointed; body whorl less conspicuously enlarged, not descending to aperture along last half whorl.