Cymbal Ancylid Attains a length of about 30-36 mm (Figs. They can also carry rat lungworm, which causes meningitis in humans. (Aguayo, 1935). Each: $28.50 M-890 BANDED TULIP SHELL, Fasciolaria lilium A small predatory snail that feeds on clams. Arboreal forms, such as Liguus of Florida and Cuba, tend to be brightly coloured; terrestrial forms usually are drab. Shell unicolor, never banded. A giant African snail sighting in Florida enacted a quarantine over parasite concerns. 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. Outer lip of aperture with a thick callus on inner surface. The latter are placed in a small container filled with pond water. Live field samples should be divided into two groups, one to be preserved for shells, the other to be preserved for anatomical specimens. Applesnails are tropical to subtropical organisms and cannot survive below 50F in the winter (Florida DOACS, 2002). 34); penis frlattened, blade-like (Fig. The coloring makes state officials. Penis with 3 papillae along right margin (Fig. (Thompson, 1968). Adult shells about 40-60 mm high (Fig. Identify your shells using our popular photo guide to southwest Florida shells from Sanibel Island and beyond. Radula with bicuspid lateral teeth (Fig. Do not use tap water since copper ions from the plumbing system may contaminate the tap water and kill the snails prematurely. An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. Aperture loosely attached to or widely separated from preceding whorl. Umbilicus closed or narrowly perforate. Malacological Review, Suppl. Nuclear whorl slightly protruding, 0.29-0.41 mm in diameter transverse to initial suture. (Dall, 1885). 1965. Revista de Biologia Trpical, 51 (supplement): 1-299. Marsh Sprite 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. Alexander Siltsnail 11). 69, 70). Thick-shelled Hydrobe 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. Thicker leaves may have damage on only one side. Color uniform olive-green, never banded (Fig. Prepared by Fred G. Thompson, Fmr. Outer lip partially flattened in adults. It occurs in India, Sri Lanka, Bangladesh, Nepal, Pakistan and Brazil (Figure 1) (Raut and Ghose 1984; Biswas et al. Others were new taxa not found in earlier surveys. Three species in Florida were introduced from Southeast Asia. Operculum loosely coiled, with 3.75 large whorls, the outer one expanding more rapidly than the others (Figs. (Thompson, 1969). Only Elimia is found in Florida. Suture simple, not crenulated. Shell usually opaque in adults, with a dark red callus inside the lip (Fig. Outer lip straight in lateral profiles. Apex subacute, distinctly eccentric to the right of the midline. Whorls shouldered above near suture (Fig. (Pfeiffer, 1839). 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. Ancylid gastropods are small, fragile limpets found in most freshwater habitats. A synopsis of the classification of the freshwater Mollusca of North America north of Mexico and a catalogue of the more recently described species with notes. Swallow-tailed kites are spring and summer residents; snail kites are specially adapted to feed on apple snails in Florida freshwater wetlands year 'round. The last time anyone had seen a land snail in the Sunshine State was at the tail-end of a year-long, $23-million battle to eradicate the invasive species from South Florida in 2012. Scatter a few granulated menthol crystals on the water surface and allow the container to sit for 10-15 hours, at which time the snails should be extended from the shell and insensitive to probing with a needle. (Fig.114). 160, 163, 166). Shell moderately elevated, over 0.25 times as high as long. Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). 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. This subfamily includes about fifteen North American and European genera (Thompson 1979). Outer lip continuously rounded (Figs. Whorls generally arched. The genus is difficult to diagnose by shell characters because the three species are very dissimilar. Biochemical studies show that in Elimia shell characters are conservative indicators of genetic divergence (Mihalcik & Thompson, 2002). Stately Elimia Elimia floridensis Florida Shell Guide. The aquatic snails of the Family Hydrobiidae of peninsular Florida. Haitia cubensis Sides of spire slightly convex. Lioplax pilsbryi pilsbryi 158). Umbilicus narrow, deep (Fig. 62). Lobe and flagellum with various patterns of dermal glands (Fig. 7-9). Shell coiled to the left, with the aperture on the left side (Figs.147-158). Ovate Campeloma It contains about a dozen species in North America. Operculum with about 6 slowly expanding whorls (Fig. Elimia buffyae Tryonia aequicostatus 89, 90). Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. 143). Size: 2-4 cm. Elimia athearni By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Aperture trapezoidal in shape; spire more robust, straight sided; with a shallower suture; parapical crest large (Fig. Suture deeply impressed, forming a channel. Operculum with concentric growth rings around nucleus (Figs. 208, 209), although radial striations may be present on other areas of shell. Sculpture consisting of distinct spiral striations and threads superimposed on growth striations (Fig. Blackwater Ancylid Pomacea paludosa, common name the Florida applesnail, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Ampullariidae, the apple snails . Laevapex peninsulas Shell usually squarish or rectangular in shape. Basch (1963) recognized five valid species. Newborn young about 3 mm in diameter. Shell nearly smooth, sculptured with irregular growth striations. The Snail Kite uses its slender, curved bill to extract its primary prey, the apple snail, from its shell. U.S. Florida Invasive species. Aperture broadly in contact with preceding whorl. 132). Bulletin of the Museum of Comparative Zoology, 129: 401-61. Tarebia granifera 200, 206). 112), occurs in the Ocmulgee River system in Georgia. 57). (Lea, 1838). Shell of various shapes and sculpture. Smooth-ribbed Hydrobe 16, 17). Bayou Physa Base of shell with dark red spiral band. Amphibious; moves by step-like mode of progression (Fig. Spire depressed, much less than height of aperture, occasionally planular (Figs. Escambia Elimia (Anthony, 1860). Nucleus of operculum spiral and then surrounded by concentric growth rings (Fig. The profile of the whorls and their comparative size can also help determine the species. Incremental striations uniformly weak. Snails on corn. Wekiwa Siltsnail Penis with a dense pattern of superior tubercles. A single species consisting of two highly variable subspecies occurs in Florida. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. (Thompson, 1968). Click on any of the seashell identification photos for information about each shell, where they were found, who found these shells and so much more. 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 . Goldenhorn Marisa (Thompson, 1968). Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda). (Fig. 159, 162, 165). 61). One to several dark growth-rest varixes usually present on last whorl. A single glandular crest present on apex of terminal lobe (Figs. Shell elongate-conical; 10-40 mm long in adult specimens; apex of spire usually eroded; shell with 8-12 whorls although eroded specimens may have fewer; shell usually strongly sculptured with spiral and/or vertical ribs and threads (except in Elimia dickinsoni); central tooth of radula without basal or lateral cusps (Fig. Radial striations present on shell but not on apex. Walkerana, 13: 1-108. Central tooth of radula with long basocones along base (Fig. Slough Hydrobe 1, 2). 149). Floridobia helicogyra 60). Acad. Basal lip of peristome deeply receded. Umbilicus open, although very narrow in some species; occasionally closed. Malacological Review, 24: 55-72. Umbilicus narrow (Figs. Terminal lobe of penis slender. Peristome incomplete around aperture. Apex in the posterior right third, domelike and evenly rounded. Snails in wild populations range in shell color from yellow to brownish-black, and may contain stripes or dimpling. 1992. Floridobia vanhyningi (Thompson, 1968). Spiral sculpture absent. An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. Aperture broadly ovate. Click on the link in the row that best matches your snail. (Pilsbry, 1890). North American freshwater snails: species list, ranges and illustrations. Thompson, F.G. 1979. Biomphalaria havanensis Many species are secondarily modified to appear right-handed or pseudo-dextral (FIGS. 159-161). Plane of aperture nearly vertical when viewed from the side. Incremental striations intensified near nucleus and umbilicus. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. Shell squat, compact, cylindric-conical in shape, thick and opaque. Shell slender, attenuate. Curator of Malacology. Shell with darker colored spiral chords that may be smooth or wavy. Thin and translucent or transparent. Mihalcik, E. L. & F. G. Thompson. Common name: Florida applesnail Taxonomy: available through Identification: This species is the largest freshwater gastropod native to North America (Burch 1982). Occasional Papers on Mollusks, 2: 261-87. Base of shell regularly expanding, not funnel-shaped. Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. 197-209). Pygmy Siltsnail) Floridobia parva (Thompson, 1968). 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. Basch, P.F. (Walker, 1905). NotogiIlia wetherby It is characterized by the lobed shape and glandular patterns of the penis. Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. Peninsula Ancylid Apical whorls raised to form a point on top of spire. The following shells are commonly found on Florida's beaches. Penis with 2 or 3 papillae on left margin (Fig. Accessory crest present. (Reeve, 1860). 140-146). Nautilus, 83: 72. Newborn shells white. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. In parthenogenetic organisms each population is inbred in the strictest genetic sense, and frequently a population will have minor characteristics that distinguish it from others. 1956. Fighting a new infestation of an invasive, crop-damaging snail, Florida agriculture officials on Thursday said they have collected 1,000 of the creatures in just over a week in Pasco County, where they were recently discovered following two years in abeyance. Three occur in Florida. One species occurs naturally in Florida, and three others have been introduced. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Identifications are difficult in many instances without properly preserved specimens. 72-74). (Walker, 1908). Last whorl of adult shell smooth or with growth striations, but not with ribs and spiral chords. Body whorl uniformly rounded peripherally (Fig. Florida authorities believe that the snail, native to eastern Africa, was reintroduced to the state when someone brought it home as a pet. 51, 52). Shell with three whorls. Shell cylindric-conical with 4.5-5.0 whorls. Florida Museum of Natural History Shell shaggy with numerous spiral fimbriations that are broken into synchronized tufts. Baker, F.C. Live snails for shell studies should be preserved in 70 percent alcohol. Floridobia is known from peninsular Florida north along the Atlantic seaboard to Maine. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Penis with 3 I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. 100). (Thompson, 2000). However, this appears to be an over reduction, and several southern species were synonymized that appear worthy of recognition. Adults 9-15 mm wide (Figs. Penis with 7-50 papillae along right margin and 1-4 papillae along distal third of left margin (Figs. Aperture rhomboid; baso-columellar angle extended as slight tonguelike projection; basal lip broadly but shallowly indented (Fig. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. Shell large, 80-100 mm wide. Littoridinops monroensis shell with 3.9-4.2 whorls (Fig. Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. Regal Hydrobe They are variable in their shell characteristics, and some samples may be difficult to identify. Apex in about middle of shell. Shell relatively thick (Figs. Whorls rounded, not carinate above; occasionally angular below. It is represented in North America by Viviparus. A preliminary revision of Florida Lioplax (Gastropoda: Viviparidae), with a description of Lioplax talquinensis n.sp. Occasional Papers of the Museum of Zoology, University of Michigan, (456): 1-6. 34, 35) (Pomatiopsis, Fig. Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. 118). By Ker Than for National Geographic News. The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. The snail can wreak havoc on agriculture and carry a parasite that causes meningitis in humans.. A review of the recent freshwater limpet snails of North America. Length of shell 2.0-2.5 mm (Fig. Peristome complete around aperture. (Morelet, 1851). RELATED: Proof of megalodon extinction is in their teeth, scientists say. 162-164). Aperture elliptical and loosely attached to or slightly separated from preceding whorl; 4.5-4.9 whorls. Apical whorls pointed and raised, but not scalariform. Physella gyrina aurea 173). 86). In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. (Linnaeus, 1758). The reader will discover how very little we know about any genus occurring in Florida. Shell elongate, thin, transparent, grayish. Maiden Campeloma Those available covered only part of the state or part of the fauna. Aperture broadly attached to preceding whorl across parietal wall. Carib Fossaria Creek Siltsnail Suture relatively deep, Whorls of spire rounded. Ferrissia is widely distributed in the northern hemisphere. 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. Last whorl not shouldered (Figs.155, 156). Floridobia ponderosa (Fig. 75). M-879 CONE SNAIL, Conus floridanus A small and less poisonous species, no one has ever died or been stung by one of these slow-movers, but like all cones, they have a venomous proboscis. 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. Miscellaneous Publication of the Museum of Zoology, University of Michigan, 6: 1-213. 14), was introduced into a fishpond in St. Petersburg about 1921 and into lakes in Orlando about 1940. The bulimulids of Florida have ovate-conical or bulimoid shells that at maturity range in size from 15 mm to 70 mm. The genus Viviparus (Viviparidae) in North America. (Say, 1829). Last whorl flattened above. Outer lip nearly straight and parallel to axis of shell in adults (Fig. Many samplings of hydrobiids collected during the period of May through September are not identifiable because only immature forms are present, and important diagnostic anatomical characteristics have not yet developed. This revision follows the classification proposed by Taylor. 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. Penis with a single papilla along left margin (Fig. The snails remain a threat in Hawaii and the Caribbean after their eradication in Florida in 2021. A taxonomic revision of the feshwater snails referred to as Elimia curvicostata, and related secies. Some species that are endemic to Florida springs live in environments with nearly constant temperatures and apparently reproduce continuously throughout the year. Operculum corneas, without pegs on inner or outer surface. Adults with six teeth in aperture, two on the parietal wall and four on the palatal wall. (Walker, 1925). Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). Shell elongate conical, spire high. The radula can be studied by dissecting out the buccal mass and macerating it in clorox or sodium hydroxide. Spire of adults without distinct vertical ribs. Eight species have been proposed. 119). Cockscomb Hydrobe Brown garden snail, Cornu aspersa (formerly Helix aspersa, Cantareus aspersus, and Cryptomphalus aspersus) is a member of the family Helicidae.This snail species originates from Britain, western Europe, and along borders of the Mediterranean and Black Seas. Spilochlamys conica Dense Hydrobe Bugle Sprite Suture not as deeply impressed as in 77b. Florida Applesnail Viviparus intertextus Inferior crest absent. It is essential that clean specimens be examined under proper lighting to observe diagnostic sculpture characteristics. Clifton Spring Hydrobe 110). Florida Flatcoil: Golden Zachrysia: Zachrysia provisoria (L. Pfeiffer, 1858) Gastrocopta pellucida (L. Pfeiffer, 1841) Zonitoides arboreus (Say, 1817) Garden Zachrysia: Slim Snaggletooth: Quick Gloss: Mesomphix globosus (MacMillan, 1940) Hawaiia minuscula (A. Binney, 1841) Mesodon thyroidus (Say, 1817) Globose Button: Minute Gem: White-lip Globe 95). Bantam Hydrobe Operculum constructed entirely of concentric rings (Fig. This causes problems in species identification and yield an undermeasure of the actual number of species that exist in nature. Shell grayish-white. 1969. Fossaria is found throughout North America, and in northern Europe. 24, 27). It is hoped that this manual will stimulate other biologists to contribute to our knowledge of freshwater mollusks. Pilsbry, H. A. 198, 205). More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. Our state park system has won national awards . Thompson, F. G. 1983. 110, 111, 68). Bright pink egg masses are laid on . Micromenetus d. dilatus 102a, 102b). Aperture loosely attached to or slightly free from preceding whorl. (Couper, 1844). State officials said the last live snail found in Florida before the Pasco . 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. Apex nearly straight-sided or concave in outline. NERITIDAE Dipping them in a dilute solution of oxalic acid and gently scrubbing them with a fine brush can clean such specimens. Only genera that enter fresh water are treated. (Pilsbry and Beacher, 1892). 199). Shell elliptical in shape. 1963. Inferior crest usually present. 140). Philadelphia, 134: 143-77. 115a, 115b). 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. (Weatherby, 1879). Pewter Physa Apex smooth, with no trace of radial striations (Fig. Sculptured with regularly spaced, fine, incremental threads and spiral striations; spiral striations evident only on base of whorls in some specimens. 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. The rosy wolfsnail was introduced into Hawaii in 1955 as a biological control for the invasive . Littoridinops tenuipes 1980. Penis with 3-7 papillae along right margin and a projection with 1-4 papillae near end on left side (Figs. 55). Florida Horse Conch ( Triplofusus giganteus) is the largest snail in North America and is Florida's state shell. Spire short and compact, about 0.5-0.7 times height of aperture in mature specimens, proportionally longer in juveniles (Fig. Amnicola dalli. Female adult snail kites have yellow or orange legs and ceres; and red or orangish-brown eyes. Generally with distinct axial and spiral striations. The VIVIPARINAE is widely distributed throughout Europe, Asia and eastern North America. The following key includes all of the species that occur in Florida and some that occur in Alabama, Georgia, and South Carolina. Shell sexually dimorphic in size, males about one-third as long as females. Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. 92). Shell conical, olivaceous in color. Mimic Pondsnail A giant African land snail, photographed at a lab in 2014. The primary differences between the two families are based on soft anatomy. Operculum tightly coiled with four slowly expanding whorls (Figs.