Penis with papillae along right margin (Figs. Body whorl rounded (Fig. Sculpture variable. This monumental work changed all previous concepts concerning subfamilies, genera and species in the family. The VIVIPARINAE is widely distributed throughout Europe, Asia and eastern North America. This genus of minute freshwater snails is endemic to the Florida peninsula. The giant African snails detected in New Port Richey, Florida are unrelated to the population of giant African snails eradicated from Broward and Miami Dade counties last year. RELATED: Proof of megalodon extinction is in their teeth, scientists say. Adult shells about 40-60 mm high (Fig. Shell larger, reaching a maximum diameter of 18 mm. Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Adult shells small, less than 3 mm high; umbilicus closed by the reflected columellar lip; columellar margin of the aperture nearly straight, barely convex (Fig. Parietal margin of operculum slightly convex in outline (Fig. Formalin will corrode the shell and thereby eliminate color, delicate sculpture, and the periostracum the thin skin coating present on most shells. Planorbella trivolvis intertexta 75). (Thompson, 1968). A giant African snail sighting in Florida enacted a quarantine over parasite concerns. The snails remain a threat in Hawaii and the Caribbean after their eradication in Florida in 2021. Hatia pomilia hendersoni . Curator of Malacology. 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 Shell generally elliptical in outline. 59). It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). 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. 1969. 119). Lioplax pilsbryi choctawhatchensis Sculpture above periphery of whorls consisting of nodes arranged in vertical and spiral rows. 110, 111, 68). Two-ridged Rams-horn 93). Others were new taxa not found in earlier surveys. 89). Micromenetus brogniartiana (Sowerby, 1878). Shell elongate conical, spire high. Thompson, F. G. 2000. 66). Female shell about 4-6 mm long (Figs. Penis filament white. Penis with 3 I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. 70). Fossaria is found throughout North America, and in northern Europe. Sculpture consisting of fine incremental threads, and spiral striations that may become obsolete at maturity. Shell with three whorls. Elimia clenchi Whorls globose, with a deeply impressed suture. Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. Apex of shell flat-topped, but sunken below periphery of last whorl. Aperture elliptical or trapezoidal in shape. Body whorl angular. The species made a return in 2011 and eradication efforts took another ten years. Aquatic; moves by gliding motion. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. Fred G. Thompson (1934-2016) Height of shell about 23-26 mm (Figs. State officials said the last live snail found in Florida before the Pasco . Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). Identification should conform with all data in the key and with geographic distributions. Most inhabit fresh water, but some also occur in brackish water. Peristome ovate to subcircular. Thick-lipped Rams-horn Teardrop Snail Occasional Papers of the Museum of Zoology, University of Michigan, (456): 1-6. Blue Spring Hydrobe Shell cylindric-conical, solid opaque; 4.5-4.9 moderately rounded whorls. 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. The state says a "gastropod enthusiast" collected unusual snails in the Coconut Grove area back in August. (Lamarck, 1822). Aphaostracon monas Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. Aperture loosely attached to or slightly free from preceding whorl. Amnicola is a widespread genus in temperate North America. 39). Length of shell 2.2-2.6 mm (Fig. Opercula should be glued to cotton plugs and replaced within the aperture. Females with live embryos in brood pouch in mantle; males with right eye stalk modified as a penis. Shell usually planispiral, but two species may have a flat-topped, elevated spire. Aphaostracon asthenes Burch, J. Haitia bermudezi Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. (Thompson, 1968). Campeloma parthenum 174-176). Shell rounded at the periphery (Figs. Giant Snails Invading Florida, "Major Threat" to Crops. Outer lip of aperture nearly straight in lateral profile (Figs. Those available covered only part of the state or part of the fauna. Basch (1963) revised the classification and recognized only twelve species. Shell usually with raised spiral threads around periphery, frequently the uppermost thread has conical or triangular spines (Figs. Floridobia vanhyningi B. Evolution has proceeded primarily through reproductive and trophic specializations. 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. Apex slightly behind and slightly to the right of midline. It was well received, and it served the interests and needs of many people. Floridobia alexander 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. Length of shell up to 5 mm. Taylor, D. W. 2003. (Mller, 1774). Adults about 15-18 mm wide with about 5.5 whorls (Figs.183-185). Weak spiral striations present on top of growth striations (Figs. 76). Medium- to large-sized tropical freshwater snails. Apex nearly straight-sided or concave in outline. Giant African land snails, an invasive species of mollusk, poses a threat to Florida residents as it can spread meningitis from a parasite it carries. 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 . Pseudotryonia brevissimus The . Nuclear whorl 0.41 mm in diameter transverse to initial suture. Shell distinctly carinated above and below; both apex and base funnel-shaped. Generally with distinct axial and spiral striations. 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. Mantle cavity with gill on dorsal surface. Hydrobiids are small- to medium-sized operculate snails that live primarily in brackish and fresh water. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. 112), occurs in the Ocmulgee River system in Georgia. Squaremouth Amnicola Umbilicus widely perforate, accentuated by a strong circum-umbilical keel. 69, 70). Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Shell conical; thin and transparent; 4.0-4.5 strongly arched whorls. Aperture elliptical and loosely attached to or slightly separated from preceding whorl; 4.5-4.9 whorls. Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). The coloring makes state officials. 1982. Identifications are difficult in many instances without properly preserved specimens. Adult large, about 23-27 mm long (Figs. Adult shells about 40 70 mm high (Fig. Shell discoidal, grayish-white in color; transparent when fresh. Adult shell about 4-5 mm high; umbilicus wide; columellar margin of the aperture concave in outline (Fig. Floridobia leptospira Shell usually opaque in adults, with a dark red callus inside the lip (Fig. Size small I I to medium, 8-12 mm in length. 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. The family attains its greatest diversity in Southeast Asia. 140-146). (Vanatta, 1935). Apex in about middle of shell. Pewter Physa Green Cove Springsnail They are variable in their shell characteristics, and some samples may be difficult to identify. In others they are deposited in the water in gelatinous clusters. Conical with relatively obese whorls. Banded Mysterysnail They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . (Goodrich, 1924). Penis with 4-6 papillae along right margin (Fig. Some species are dioecious with a normal representation of males and females. Florida. (Walker, 1908). Prominent vertical ribs on middle and upper whorls. Penis with 3 papillae along right margin (Fig. Aperture moderately oblique. Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda). The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. Rhapinema dacryon Biomphalaria havanensis Floridobia fraterna Aphaostracon xynoelictus North American freshwater snails: species list, ranges and illustrations. 97). Shell conical or cylindric-conical; light to dark brown. 36); males with a copulatory appendage, a penis (Fig. Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. Shell conical, thick, opaque. Graphite Elimia Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. This family includes four North American genera, Amnicola, Dasyscia, Colligyrus and Lyogyrus, and the European genus Marstoniopsis and some Asian genera. Shell smaller, reaching a maximum diameter of 13 mm. Helisoma anceps anceps 201, 207). Ecology: This large snail is found in freshwater lakes, rivers, streams, ponds and ditches, preferring slow-moving water. (Thompson, 2000). Apex proportionally longer, about 0.3-0.5 times length of shell. Horse conch in mud Horse Conch snail The mature horse conch can be two feet long! Floridobia petrifons Suture more deeply impressed. Texture dull. 146). 1945. Female oviparous, never with embryos in uterus. Our beaches often rank at or near the top in the world. On sibling species and genetic diversity in Florida Goniobasis (Gastropoda, Prosobranchia, Pleuroceridae). Apex of shell slightly convex in outline. Outer lip strongly sinuous. (Clench & Turner, 1956). Only genera that enter fresh water are treated. 17-29). University of Illinois Press, Urbana. Elimia doolyensis (Pfeiffer, 1839). Carib Fossaria Bright pink egg masses are laid on . The snail can wreak havoc on agriculture and carry a parasite that causes meningitis in humans.. Ferrissia hendersoni (Lea, 1862). 1956. 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. Pomatiopsis lapidaria Umbilicus open, although very narrow in some species; occasionally closed. (Thompson, 1968). Shell conical, spire moderatly high. Central tooth of radula with basocones located on fore or lateral wing of tooth (Figs. Lyogyrus retromargo 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. 75, 76). Suture deeply impressed, forming a channel. Outer lip of aperture strongly sinuous in lateral profile (Fig. 80). Some were range extensions for species known to occur in adjacent areas. Transparent white (Fig. 199). Length of shell 2.0-2.4 mm (Fig. Haitia cubensis Attains a length of 30-40 mm (Fig. The spire differs between bumpy and smooth but it is always elongated. 89, 90). Females with an egg-laying groove or sinus on right side of foot; eggs deposited on substrate. 7 new spider species . Click on the link in the row that best matches your snail. Taylor (2003) monographed the family Physidae. Proc. 51, 52). Snails in wild populations range in shell color from yellow to brownish-black, and may contain stripes or dimpling. (Fig. The sexes are separate and fertilization is internal (Andrews, 1964). (Weatherby, 1879). Embryonic shell smooth, without spiral chords (Fig. Wekiwa Hydrobe 86). 68); lobe and flagellum with various patterns of dermal glands; central tooth of radula with basocones located on reflected margin of tooth (Fig. Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. 137, 139). (Conrad, 1834). 159-179). Hood Ancylid This study was a landmark contribution to the malacology of the southeast, and it summarized the known fauna of western Florida. (Pilsbry and Johnson, 1903). Outer lip partially flattened in adults. A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia, Hydrobiidae). Outer lip straightened just below shoulder; straightened portion lying at an angle to axis of shell (Figs. The radula can be studied by dissecting out the buccal mass and macerating it in clorox or sodium hydroxide. The species was eradicated again in 2021 after being detected in 2011 in Miami-Dade County, according to FDACS. Shellolive-colored; spire straight-sided. Last whorl not shouldered (Figs.155, 156). 92). By Ker Than for National Geographic News. Shell unicolor, never banded. 32). 83). Shell generally thin but strong; whorls of spire strongly convex with deep suture (Figs. Thicker leaves may have damage on only one side. 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. Shell elongate-conical. Viviparus contectoides limi, new name for V. c. compactus Pils. Outer lip of aperture with a thick callus on inner surface. Nautilus, 97: 68-69. The shell characters given above for separating the families apply only to Florida species. The bio-economic importance of snails to environmental issues has become increasingly relevant because of the impact that economic development has on Florida waterways. Interior of aperture livid white. Pseudosuccinea columella Biochemical studies show that in Elimia shell characters are conservative indicators of genetic divergence (Mihalcik & Thompson, 2002). Shell conical or cylindric-conical. Operculum corneas, without pegs on inner or outer surface. Peristome complete around aperture. Excentric Ancylid Aperture ovate; baso-columellar angle not extended; basal lip not indented. i-xxxvi, 1-530 pls. Ichetucknee Siltsnail Shell glossy. Incremental striations uniformly weak. (Say, 1825). Shell elongate. Fossaria cubensis It has many colorful stripes, colors, and bands on its shell which are usually orange, light orange, dark orange, or yellow. 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. Pyrgophorus platyrachis Veliger, 45:269-271. It matters not that the specimens are stored in 70 percent alcohol after having been fixed in formalin. Shell with 5.0-6.5 whorls; about 3-5 mm long (Fig. Apex subacute, distinctly eccentric to the right of the midline. (Aguayo, 1935). Shell with darker colored spiral chords that may be smooth or wavy. (Linnaeus, 1758). Snails on corn. Apex very short, only slightly raised above body whorl. For the purpose of completeness, the three parthenogenetic forms and C. geniculum are included in the key. Spiral or costate sculpture usually present. The Junonia is seldom found, and is considered a special find by beachcombers. Laevapex diaphanus Outer lip nearly straight and parallel to axis of shell in adults (Fig. 17, 29-32), shell usually banded in Florida forms. Aphaostracon chalarogyrus Giant African snails can lead to giant problems. Aperture loosely attached to or widely separated from preceding whorl. Shell ovate in shape, about 1.2-1.5 times as high as wide. (Thompson, 1968). 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. 89-91). Whorls flat-sided with suture weakly impressed. 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. Aperture relatively shorter, about half or less the length of the shell. Apex smooth, with no trace of radial striations (Fig.