161, 164, 167). (Conrad, 1834). Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). Penis with some superior tubercles fused into a U-shaped crest; parapical crest raised on a fleshy pedicel; accessory crest and inferior crest usually present (Fig. Fingers crossed, it'll stay that way. Bugle Sprite Conical with relatively slender whorls. Thompson, F. G. 1969. Nucleus of operculum spiral and then surrounded by concentric growth rings (Fig. The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. Haitia cubensis Aperture loosely attached to or widely separated from preceding whorl. 80). Spiral sculpture faint or absent (Figs. Average length about 5 mm (Figs. This family contains twelve genera in North America. Shell minute, 2.0-2.3 mm long; thin and transparent; spire 0.7-1.1 times length of aperture; flagellum lacking glandular crests. On sibling species and genetic diversity in Florida Goniobasis (Gastropoda, Prosobranchia, Pleuroceridae). Minor spiral sculpture weak or absent. 170, 173). 72-74). Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. Shell conical, spire moderatly high. Choctaw Lioplax Vernacular manes used in this manual are consistent with the standardized list of vernacular names for North American freshwater snails recently established by the American Fisheries Society (Turgeon, et al, 1998). (Thompson, 1968). Paper fig A Florida Gulf Coast specialty shell! Length of shell 2.4-3.4 mm (Fig. Whorls globose, with a deeply impressed suture. 86). The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. Body whorl inflated. They complete their life cycles in one year. 1980. Those available covered only part of the state or part of the fauna. The bulimulids of Florida have ovate-conical or bulimoid shells that at maturity range in size from 15 mm to 70 mm. (Pilsbry, 1889). Helisoma anceps anceps Apex very short, only slightly raised above body whorl. Malacological Review, 19: 85-86. Nuclear whorl 0.41 mm in diameter transverse to initial suture. After a few years in storage glandular tissues in the female reproductive system deteriorate, and the process gradually spreads to destroy all but the terminal genital structures. Identification KeysThese files are all keys for the identification of various kinds of organisms. Adult size small, about 12-16 mm long (Fig. Ferrissia mcneilli Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. Laevapex diaphanus They are most common on tropical islands but occur also in cold regions, where they hibernate. Pygmy Siltsnail) Floridobia parva (Thompson, 1968). This species is a fast and voracious predator, hunting and eating other snails and slugs. Shell larger, thicker, and opaque; spire 0.9-1.3 times length of aperture; with more than 4.2 whorls; penis flagellum with glandular crests. Basal lip of peristome deeply receded. 11). Opercula of minute snails can be studied most easily by removing them from the animal and viewing them with transmitted light. Spire depressed, much less than height of aperture, occasionally planular (Figs. Marginal teeth of radula trapezoidal with well-differentiated cusps. Its brown spotted exterior provides camouflage, making it a challenge to spot. 162-164). This subfamily includes about fifteen North American and European genera (Thompson 1979). Aperture widely separated from preceding whorl. Definitive identifications may require anatomical dissections and reference to other literature. Campeloma parthenum 137, 139). Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Each: $28.50 M-890 BANDED TULIP SHELL, Fasciolaria lilium A small predatory snail that feeds on clams. NERITIDAE (Pfeiffer, 1839). (Walker, 1905). Apex behind center of shell. In Florida, the African land snail existed largely in Miami-Dade County, although hundreds of the pests were found in Broward County, specifically western Davie, in 2014. . Papilla with a duct that leads to a blind caecum in nape of snail. Whorls shouldered above near suture (Fig. Sculpture consisting of fine incremental threads, and spiral striations that may become obsolete at maturity. This monumental work changed all previous concepts concerning subfamilies, genera and species in the family. Whorls rounded, not carinate above; occasionally angular below. (Thompson, 1968). Clifton Spring Hydrobe (Thompson, 1968). Throughout the 19th and 20th Centuries malacologists made frequent field trips to explore river systems that were poorly known, and to revisit others that were renown for their rich and unique assemblages of species. It is important to save some specimens for anatomical studies. 105, 106). With the exception of Liguus fasciatus, these snails have shells that vary in color from ivory to tan, often with brown markings.Liguus shells are brilliantly colored and are frequently marked with yellow, green, pink, and brown. Live field samples should be divided into two groups, one to be preserved for shells, the other to be preserved for anatomical specimens. Land Snail (Bulimulus sporadicus)A large group of Bulimulus sporadicus found in the Florida panhandle. Shell with a brownish hue. Two species occur in Florida. Some hydrobiid snails from Georgia and Florida. 159, 162, 165). 16, 25, 28). Length of shell 2.0-2.4 mm (Fig. Shell usually elevated, but variable. In Pasco County Florida, a quarantine order was issued for people after the re-discovery of the giant African land snail, an invasive species that can harm to humans, structures, and wildlife. 3). Penis with large papilla on right margin near base and one or two papillae on left margin near distal end (Figs. The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. Jan. 28, 2020 . Female ovoviviparous with about 15 large embryos in uterus. RELATED: Proof of megalodon extinction is in their teeth, scientists say. As of last . Operculum constructed entirely of concentric rings (Fig. Physid species have similar and superficially featureless, variable shells, and the shell is imprecise for identifying most genera and many species. Thompson, F. G. & R. Hershler. It contains about a dozen species in North America. Pomacea canaliculata (Lamarck, 1822) (Gastropoda, Prosobranchia, Pilidae): A freshwater snail introduced into Florida, U. S. A. Malacological Review, 30:91. Purple-throated Campeloma Base of shell with dark red spiral band. The number of subfanilies recognized in the Hydrobiida is unsettled. Earlier whorls of adult shell with vertical ribs and spiral chords. Shell translucent. Nautilus, 19: 34. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. The aquatic snails of the Family Hydrobiidae of peninsular Florida. NotogiIlia wetherby Outer lip strongly sinuous. The horntail snail belongs to the genus Macrochlamys (family Ariophantidae), which has over a hundred described species distributed from South to Southeast Asia and southern China (Pholyotha et al. It could take years to fully rid the state of the species, officials say. The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. 122). Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. Outer lip straight in lateral profiles. Pomacea bridgesi Ferrissia is widely distributed in the northern hemisphere. Rails, gallinules, coots and cranes. Umbilicus variable. Black-crested Elimia) Elimia albanyensis (Lea, 1864). Shell transparent or opaque. Shell moderately elevated, over 0.25 times as high as long. Female shell about 4-6 mm long (Figs. Lip of adult shell usually with a thick crest externally and an internal callus. The rosy wolfsnail was introduced into Hawaii in 1955 as a biological control for the invasive . 85). Mantle diffusely pigmented with melanophores (Fig. Live snails for shell studies should be preserved in 70 percent alcohol. Suture not as deeply impressed as in 77b. Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. Oftentimes you'll see trails of mucous around these damaged sites. Micromenetus d. dilatus Tarebia granifera Pyrgophorus platyrachis Brownish-yellow in color (Fig. Endemic New World genera occur in Cuba, Jamaica, and northern South America. The molluscan family Planorbidae. Length of shell 2.2-2.6 mm (Fig. Shell smooth. 14), was introduced into a fishpond in St. Petersburg about 1921 and into lakes in Orlando about 1940. 2018). Conical with relatively obese whorls. The first snail is Euglandina rosea, the "rosy wolf snail" it is carnivorous, and eats other snails.The second snail is Zachrysia provisoria, the "garden provisoria", which can be a pest as it enjoys fruits and vegetables.These snails are both native to Florida; neither species can survive in the wild in cold climates, but both species have been introduced to other . Shaggy Ghostsnail Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. 16, 22-28). Physella gyrina aurea 109a, 109b). Penis with two or more longitudinal crests within U-shaped superior tubercle (Fig. 129). Other species deposit eggs during the period of March through May, at which time the adults die and immature forms dominate the population through August or September. In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. 1905. Choctawhatchee Pebblesnail) Somatogyrus sp. Floridobia ponderosa Penis of males with papillae along sides (Figs. Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. Operculum calcareous with two pegs on inner surface (Figs. Floridobia is known from peninsular Florida north along the Atlantic seaboard to Maine. Penis with invaginated cave-like pit within U-shaped superior tubercles. 7-9). Aphaostracon theiocrenetus (Lea, 1862). The snails remain a threat in Hawaii and the Caribbean after their eradication in Florida in 2021. It is represented in North America by Viviparus. It became increasingly important to provide an identification manual of the freshwater snails of Florida for many reasons. Davis, G.M., M. Mazurkiewicz, & M. Mandracchia. Accessory crest absent. Mesa Rams-horn Taylor recognizes twenty-three genera based on the soft anatomy. A preliminary revision of Florida Lioplax (Gastropoda: Viviparidae), with a description of Lioplax talquinensis n.sp. The following shells are commonly found on Florida's beaches. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. Aperture trapezoidal in shape; spire more robust, straight sided; with a shallower suture; parapical crest large (Fig. A giant African snail sighting in Florida enacted a quarantine over parasite concerns. They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . Curator of Malacology This revision follows the classification proposed by Taylor. (Thompson, 1968). Incremental striations uniformly weak. Aperture broadly elliptical. Elimia dickinsoni Shell elongate with pointed conical spire. 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. Proceedings of the Academy of Natural Sciences of Philadelphia, 86: 29-66. 41-43). (Clench & Turner, 1956). Nautilus, 97: 68-69. Apex slightly behind and slightly to the right of midline. University of Illinois Press, Urbana. Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. EDRR Invasive Species. Campeloma parthenum (Gastropoda: Viviparidae), a new species from north Florida. 24, 27). Critical Florida references are Thompson 1968, 1969, 2000; Thompson and Hershler, 1991, and Hershler and Thompson, 1992. 87). Various species of Cipangopaludina also have been introduced from the Orient into North America. Adult shell without lamella on interior walls of aperture. The deterioration process is not reversible. Hershler, R. & F. G. Thompson. 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 . 132). Length of shell 2.6-3.0 mm (Fig. 32). Laevapex peninsulas Spiral angulation on whorls sharp and prominent in juveniles, usually becoming convex-rounded or smooth on last whorl in adults. 10-12). Ovate Campeloma Shell without conical spines, although spiral threads may be present. Florida Horse Conch ( Triplofusus giganteus) is the largest snail in North America and is Florida's state shell. Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. Olive NeriteNeritina usnea(Reding, 1798). Penis with papillae along right margin (Figs. 1965. 201, 207). Haitia pomilia pomilia (Lea, 1838). TAMPA, Fla. - A horntail snail, an invasive pest common in India, has been found in Miami-Dade County, spurring agriculture officials to start a program to prevent the possible spread of the species, the Florida Department of Agriculture and Consumer Services said Thursday. Thiarids are found in tropical and subtropical regions of the world. (Lamarck, 1822). Creek Siltsnail Axial striations distinct (Fig. 60). Umbilicus open, although very narrow in some species; occasionally closed. Female oviparous, never with embryos in uterus. Smooth-ribbed Hydrobe Another variety, with cream-colored flesh and mottled brown shells, was detected in 2022. Credit: Craig Pittman. 164, 167). Being nocturnal, these pests aren't always feeding when you're scouting. Size: 2-4 cm. (Sowerby, 1878). Shell with 3-4 whorls. Aperture rhomboid; baso-columellar angle extended as slight tonguelike projection; basal lip broadly but shallowly indented (Fig. The most recent sighting of a giant African land snail took place in 2017, meaning the species can now be considered eradicated in the state of Florida. A single glandular crest present on apex of terminal lobe (Figs. Shell elliptical in shape. Thompson, F.G. 1968. Click on images to enlarge them. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. 159-179). (Reeve, 1856). The coloring makes state officials. The species made a return in 2011 and eradication efforts took another ten years. Base of shell open when viewed from below, showing most of preceding whorl due to curved basal lip (Fig. Shell shaggy with numerous spiral fimbriations that are broken into synchronized tufts. Dasyscia franzi Aperture narrow, about half as wide as high. Penis with a very long slender flagellum that extends beyond terminal lobe. 89-91). Identification of Marine Snails reefdup Identification, Snails July 3, 2020 Cerith, Collonista, Collumbellid, Conch, Limpet, Nassarius, Nerite, Ninja, Pyramidellid, Snail, Stomatella, Turbo, Vermetid 3 Comments Marine snails come in all shapes, sizes, colors, and function, so proper identification is crucial! Shell minute, 2.4-2.7 mm long; adults with 3.9-4.2 whorls; spire short, 0.8- 1.1 times height of aperture (Fig. Gulf Coast Pebblesnail) Somatogyrus walkerianus (Aldrich, 1905). (Couper, 1844). 23, 26). Blackwater Ancylid (Lea, 1842). Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Additional genera occur in the Orient, Southeast Asia, Africa, and South America. 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. Vail, V. A. Umbilicus narrow, deep (Fig. The Florida Department . Pseudotryonia brevissimus The Florida Department of Agriculture and Consumer Services has mapped out a . Earlier whorls of adult shell with heavy vertical ribs crossed by knobby folds or a strong spiral chord; sides of spire straight or weakly convex in lateral profile; embryonic shell with a single spiral chord on periphery and heavy vertical ribs, but without basal spiral chord (Fig. It has many colorful stripes, colors, and bands on its shell which are usually orange, light orange, dark orange, or yellow. Some species that are endemic to Florida springs live in environments with nearly constant temperatures and apparently reproduce continuously throughout the year. Outer lip straightened just below shoulder; straightened portion lying at an angle to axis of shell (Figs. Their color varies from red-orange, to pink, to a blue purple. Penis with 0-6 papillae confined to right margin (Figs. Tadpole Physa Operculum tightly coiled with four slowly expanding whorls (Figs. Vernacular names are given only for species. Many North American snail species were described near the turn of the century by Walker (1918). (Fig. Squaremouth Amnicola This is essential in the case of the Hydrobiidae. Frequently the shells of ampulariids and viviparids are very similar. Shell conical to ovate-conical. Littoridinops monroensis The bodies of large snails, such as viviparids and pilids, should be pulled from the shell. The genus Viviparus (Viviparidae) in North America. Our state park system has won national awards . Rotund Mysterysnail Lower margin of aperture not advanced beyond upper margin. Baker, F.C. Shell smaller, reaching a maximum diameter of 13 mm. In 1976 in the St. Johns River 1 found Melanoides tuberculatus with population densities of 10,000/m2. 131). The number of whorls persent on the shell can help you easily identify the snail species. Additional surveys found four different populations all associated with the CSX railways. Shell conical or globose-conical; thin, translucent, occasionally opaque. Female shell about 3.5-4.0 mm long (Fig. 204-207), often eroded in older specimens. Only three widely distributed species occur in Florida. Flatwood siltsnail Shell 2.8-3.7 mm long. The latter genus includes a single species, Cincinnatia integra (Say, 1817). Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). This is not the first time Florida has dealt with an invasion of giant snails. (Walker, 1925). (Clench, 1925). Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Shell discoidal, grayish-white in color; transparent when fresh. University of Florida Periphery of body whorl below middle, side of whorl flattened and sloping toward apex (Fig. Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. Clench, W.J. 47). Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands. 145). Outer lip less sinuous. Radula with bicuspid lateral teeth (Fig. Important diagnostic characteristics for subfamilies, genera, and species are found in the female reproductive system, the male reproductive organ (the penis), and modifications of the radular teeth. Their siphonal canal is merged with their aperture and called a "siphonal notch". 100). Slackwater Elimia Shell distinctly carinated above and below; both apex and base funnel-shaped. Shell grayish-white. Aphaostracon pachynotus Operculum corneas, without pegs on inner or outer surface. Columellart margin of aperture not flat-faced; apex of shell usually entire; penis with large terminal lobe on left side and small appendage-like flagellum on right margin (Fig. The Junonia is seldom found, and is considered a special find by beachcombers. Apex proportionally longer, about 0.3-0.5 times length of shell. Body whorl strongly keeled as though pinched at the periphery (Figs. Amber to milky white in color (Figs. Thompson, F. G. & R. Hershler. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). Escambia Elimia 199). Operculum paucispiral, with about three rapidly expanding whorls (Fig. Florida. Prepared by Fred G. Thompson, Fmr. According to the Florida Department of Agriculture and Consumer Services (FDACS), the giant African snail, commonly referred to as GALS by invasive-species aficionados, is native to East Africa .

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