Occasional Papers on Mollusks, 2: 385-412. (Thompson, 1968). 170). Over 500 species of Elimia have been described, most on the basis of shell characters. 149). Bayou Physa Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Sculpture consisting of incremental striations only. Hyacinth Siltsnail) Floridobia floridana (Frauenfeld, 1863). Choctaw Lioplax Basal lip of peristome deeply receded. Florida Shell Guide. 174-176). 39). Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Newborn shells white. 44). One species, C. chinensis malleatus (Reeve, 1863) (Fig. Pyrgophorus platyrachis Suture not as deeply impressed as in 77b. Apex of shell slightly convex in outline. The sexes are separate and fertilization is internal (Andrews, 1964). 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. Spire usually about equal to or greater than height of aperture (Figs. Mantle diffusely pigmented or unpigmented. After the snails have been in the fixative for a few minutes to several hours, depending upon their sizes, they should be rinsed in water and transferred to 70 percent ethyl alcohol. Marsh Sprite For the purpose of completeness, the three parthenogenetic forms and C. geniculum are included in the key. Spilochlamys gravis Aperture narrowly in contact or free from preceding whorl. The HYDROBIIDAE include over 200 genera and approximately 1000 species. Base of last whorl with prominent spiral ridges. Floridobia alexander This species is a fast and voracious predator, hunting and eating other snails and slugs. TALLAHASSEE, Fla. (AP) Florida, a state that encourages people to kill non-native iguanas, pythons and lionfish, has a new invasive species to worry about: the horntail snail, which has never . Fortunately in Florida, the species are relatively easy to distinguish. Euglandina rosea, the rosy wolfsnail or cannibal snail, is a species of medium-sized to large predatory air-breathing land snail, a carnivorous terrestrial pulmonate gastropod mollusk in the family Spiraxidae.. Outer lip of aperture with a thick callus on inner surface. Nautilus, 32: 71. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. The molluscan family Planorbidae. Spilochlamys is most similar to the next genus, Cincinnatia, from which its shell usually differs by having a more deeply impressed suture, more strongly shouldered whorls, and a wider umbilical perforation. 197, 204). Aperture never with a septum. Haitia pomilia pomilia Apex suppressed to form a nearly flat plane with the peripheral angle (Figs.165-167). This is not the first time Florida has dealt with an invasion of giant snails. (Menke, 1839). Elimia dickinsoni Umbilical perforation narrow, 1/8 1/10 diameter of shell. It became increasingly important to provide an identification manual of the freshwater snails of Florida for many reasons. Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. 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). By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Length of shell 2.0-2.4 mm (Fig. 95). Shell elliptical in shape. Size: 2-4 cm. Its brown spotted exterior provides camouflage, making it a challenge to spot. Aquatic; moves by gliding motion. Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. 23, 26). The rosy wolfsnail was introduced into Hawaii in 1955 as a biological control for the invasive . Whorls of spire less rounded. Kites belong to the same bird family as hawks and eagles, Accipittridae. Aperture non-operculate; mantle cavity modified into a lung. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. Three species in Florida were introduced from Southeast Asia. The family contains many genera and numerous species in South America, Central America, Mexico, Africa, and Southeast Asia. Length of shell 2.2-2.6 mm (Fig. Apex subacute, distinctly eccentric to the right of the midline. The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. Shell smooth. Bulletin of the Museum of Comparative Zoology, 129: 401-61. 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. Pseudotryonia brevissimus Flatwood siltsnail Low-dome Physa They achieve their greatest diversity in genera and species in temperate North America. Outer lip partially flattened in adults. 62). Shaggy Ghostsnail 15). Whorls 3.0-4.0. Burch, J. Whorls of spire strongly arched or rounded. 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 . Click on the link in the row that best matches your snail. 169, 172). The following key includes all of the species that occur in Florida and some that occur in Alabama, Georgia, and South Carolina. Generally with distinct axial and spiral striations. Thompson, F. G. 1982. 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. Outer lip strongly sinuous. It is important to save some specimens for anatomical studies. Fine vertical ribs present on uppermost whorls. 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. North American freshwater snails: species list, ranges and illustrations. Channeled Applesnail Average length about 5.5 mm (Figs. Vertical ribs relatively strong and more widely spaced. It can grow to a length of 16 inches (400 millimeters) and is easily identifiable by the left-handed opening of the shell - meaning when you look at the shell, the opening is on the left. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. Marisa cornuaurietus Shell small, 2.0-2.8 mm long. The species of snail was present in Florida in the 1960s and 1970s before being eradicated in 1975, the FDACS said. (Fig. 128). Knobby Elimia The primary differences between the two families are based on soft anatomy. Penis with different arrangement of papillae than above. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Choctawhatchee Pebblesnail) Somatogyrus sp. 113). Lower margin of aperture not advanced beyond upper margin. 63). Shell olive-green with vertical reddish flames and spots. EDRR Invasive Species. Vail, V. A. 61). In some genera, eggs are deposited above the water in dry clusters on stems, trees, walls, etc. A Guide to Florida Bird Species. (Conrad, 1834). Seminole Rams-horn Click on images to enlarge them. Aperture without serrate denticles on parietal wall. Shell elongate with pointed conical spire. Aphaostracon pachynotus Gray to brownish-yellow in color. Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. Penis filament black. Freemouth Hydrobe Inferior crest absent. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. Revista de Biologia Trpical, 51 (supplement): 1-299. 14), was introduced into a fishpond in St. Petersburg about 1921 and into lakes in Orlando about 1940. Operculum tightly coiled with four slowly expanding whorls (Figs. Periphery variable. Serrated Crownsnail Aphaostracon theiocrenetus Thin and translucent or transparent. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. 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. Shell narrow, terete or cylindric-conical with a moderately impressed suture. In view of the inconsistency of these shell characters, these three forms may represent only a single species, Campeloma limum, which is widely distributed from the Escambia River system of Florida and Alabama east and north into North Carolina and Virginia. Shell sculptured with vertical, weakly curved ribs and much finer spiral striations. Thicker leaves may have damage on only one side. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Curator of Malacology Shellolive-colored; spire straight-sided. Apex in the posterior right third, domelike and evenly rounded. Hood Ancylid Shell coiled to the right, with the aperture on the right side (Figs. 1980. 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. Primarily parthenogenetic; females viviparous with young snails in a brood pouch in nape. Rotund Mysterysnail 180-182). Florida. The shell are secondarily useful for identification, but only when supplemented with anatomical information. 46). Shell smaller, generally less than 12 mm long. Squaremouth Amnicola (Jay, 1839). Thompson, F.G. 1968. Shell medium-sized, 2.8 3.5 mm long; spire 0.9 1.1 times length of aperture; shell with 4.2-4.7 whorls (Fig. Suture relatively deep, Whorls of spire rounded. Green Cove Springsnail Overshadowing this genetic divergence are frequent examples of convergent evolution of similar adult shell characters among distantly related species. 100). Medium to large freshwater snails found on all continents except South America. Elimia doolyensis Florida Cone (Family) Conidae Distinguishing Characteristics: The Cones are easily identified by the distinctive cone-like shape and a long aperture that reaches up to their shoulder. Veliger, 45:269-271. Ponderous Siltsnail All snails in the subfamily Achatininae, including the giant African snail (GAS) (Lissachatina fulica), are regulated plant pests. Amnicola dalli. Amphibious; moves by step-like mode of progression (Fig. 164, 167). Radial riblets on entire surface of shell except apex. Laevapex is a North American genus. Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. Length of shell 2.4-3.4 mm (Fig. 51, 52). The snails identified in Pasco County look different from the ones previously seen in Miami-Dade County: Their flesh is creamy white, rather than grayish brown. Shell with a brownish hue. In 2011, a population of the pests was discovered in Miami-Dade County. Tadpole Physa Shell transparent or opaque. University of Florida scientists say the nightmarishly named "rat lungworm" has been found in multiple species of snails in the Miami area, including the invasive giant African snail. A press release sent from FDACS said that a gastropod enthusiast in Coconut Grove discovered the snail and sent it to the University of Florida for identification. 115, 116). Widely umbilicate. Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. 34, 35) (Pomatiopsis, Fig. Penis with 4-6 papillae along right margin (Fig. 130). Brownish-yellow in color (Fig. 10). Sculpture consisting of axial striations only (Fig.147). This genus of minute freshwater snails is endemic to the Florida peninsula. Banded Mysterysnail This genus contains three species. Suture simple, not crenulated. 134). (Thompson, 1968). They're different than the ones found previously. Biomphalaria havanensis 2018). Operculum constructed entirely of concentric rings (Fig. Quarterly Journal of the Florida Acaemy of Sciences, 32: 241-65. (C.B. 87). 137, 139). The coloration of the aperture and the embryonic shell is not consistent within single population samples, and the contour of the outer lip is highly variable within single drainage systems and with the age of the specimens examined. Lioplax pilsbryi pilsbryi Melanoides tuberculata (Muller) in Florida. 38). It should be remembered that it is only a key which emphasizes shell characters. (Say, 1825). Lymnaeids are a nearly cosmopolitan family of freshwater snails. Haitia bermudezi 89-91). Four species currently are recognized, but the genus has received very little study over most of its range. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Aperture strongly oblique. 89, 90). Umbilicus wide (Fig. Apex very obtuse, almost in the middle of the shell. Typically, land snails live on or near the ground, feed on decaying plant matter, and lay their eggs in the soil. It is characterized by the lobed shape and glandular patterns of the penis. Shell with prominent ribs and spiral chords on all whorls. Shell usually small to medium (2-25 mm).