Length of shell 2.6-3.0 mm (Fig. Size smaller than last species, seldom exceeding 10 mm in width (Figs.194-196). 36); males with a copulatory appendage, a penis (Fig. It is troublesome mostly in southern Florida as far north as Tampa, but because potted plants are regularly moved northward it can appear almost anywhere. Shaggy Ghostsnail Umbilicus widely perforate, accentuated by a strong circum-umbilical keel. Mantle diffusely pigmented or unpigmented. 105, 106). Adults with six teeth in aperture, two on the parietal wall and four on the palatal wall. Apex in the posterior right third, domelike and evenly rounded. Spiral sculpture absent. Littoridinops monroensis Aperture terminating below periphery of body whorl. 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. Peristome narrow to broadly ovate. The genus is found along the east coast of North America from Maryland south to Tabasco, Mexico. Sexes strongly dimorphic in size, males about half as long as females. This study was a landmark contribution to the malacology of the southeast, and it summarized the known fauna of western Florida. The shell characters given above for separating the families apply only to Florida species. The rosy wolfsnail was introduced into Hawaii in 1955 as a biological control for the invasive . University of Illinois Press, Urbana. 91). Aperture broadly in contact with preceding whorl. Shell elliptical-ovate in shape. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. 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. . Shell with 4.4-5.0 whorls; about 3.7-5.2 mm long. Shell conical, spire moderatly high. Shell usually planispiral, but two species may have a flat-topped, elevated spire. Apex of shell slightly convex in outline. (Clench & Turner, 1956). The fixative may damage the shell, but that is unimportant for anatomical purposes. Average length about 5.5 mm (Figs. 197, 204). 203, 209). Types of Shells In Florida: Seashell Identification Guide It lurks nearly a foot beneath the dunes of Sanibel Island. Viviparus intertextus Like. Penis filament black. The International Commision on Zoological Nomenclature has ruled that AMPULLARIIDAE is the valid name for this family of snails. Apex proportionally longer, about 0.3-0.5 times length of shell. Last whorl distinctly shouldered. Viviparus georgianus You can also navigate through the images by clicking on the arrows near the left and right edges of the enlarged view. Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. Ecology: This large snail is found in freshwater lakes, rivers, streams, ponds and ditches, preferring slow-moving water. (Thompson, 2000). The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. Pyrgophorus platyrachis Parapical crest of verge greatly enlarged. One to several dark growth-rest varixes usually present on last whorl. Shell sculptured with fine spiral striations, and in some cases curved axial ribs. Shell sexually dimorphic in size, males about one-third as long as females. Lioplax pilsbryi pilsbryi Female oviparous, never with embryos in uterus. Walker, B. 15). The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. 119). 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.. There is much disagreement as to how many species actually exist. The genus is difficult to diagnose by shell characters because the three species are very dissimilar. Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. 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. Bulletin of the Environmental Protection Agency, EPA-600/3-82-026: i-vi, 1-294. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Newborn shells white. Penis with one papilla on left margin (Fig. 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 . Peristome complete around aperture. Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. Widely umbilicate. Ph.D. thesis, University of Michigan, i-xii, 1-324. 46). Mesa Rams-horn 137, 139). The greatest diversity of genera and species is in the Indo-Australian region. Three other species occur farther north. Basch (1963) revised the classification and recognized only twelve species. Shell thick and solid; whorls weakly convex or flattened (Figs. Thick-shelled Hydrobe Burch, J. 126); accessory crest present on penis. The Florida Department of Agriculture and Consumer Services has mapped out a . 127); superior tubercles on penis arranged in oblique longitudinal series. Bayou Physa The current status of these introductions is not known. Shell smaller, generally less than 12 mm long. Penis filament white. Shell large, 4.0-4.6 mm long; thick and opaque. 58). Floridobia vanhyningi Elimia annae (Lea, 1858). Sides of spire straight in lateral profile. It is characterized by the lobed shape and glandular patterns of the penis. Shell with spiral chords or spirally arranged series of nodes. It wasn't until 2021 the population was. Many species are secondarily modified to appear right-handed or pseudo-dextral (FIGS. Amber to milky white in color (Figs. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. They are brown in color and have a striped pattern. Lobe and flagellum with various patterns of dermal glands (Fig. 1980. This is essential in the case of the Hydrobiidae. Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). 128). (Say, 1825). Pilsbry, H. A. 198, 205). 1, 2). Laevapex is a North American genus. (Conrad, 1834). Shell elongate, thin, transparent, grayish. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. Choctaw Lioplax Their color varies from red-orange, to pink, to a blue purple. Sculpture variable. Thompson, F. G. 1969. Suture simple, not crenulated. Body whorl inflated. Aphaostracon chalarogyrus 61). Umbilicus broad, shallow (Fig. Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. 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. Apex fairly prominent as a rounded knob in the right posterior quadrant (Figs. 1934. Review of the Planorbidae of Florida with notes on other members of the family. Most other genera have received relatively minor attention, and their systematics are in flux. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. Aperture usually open; occasionally with a horizontal, shelf-like septum closing posterior part (Fig. 89). 34, 35) (Pomatiopsis, Fig. By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Revista de Biologia Trpical, 51 (supplement): 1-299. Umbilicus closed or narrowly perforate. Critical Florida references are Thompson 1968, 1969, 2000; Thompson and Hershler, 1991, and Hershler and Thompson, 1992. Female ovoviviparous with about 15 large embryos in uterus. About 4.2-4.6 weakly arched whorls with a weakly impressed suture. Spiral sculpture absent. Slough Hydrobe Pomacea canaliculata Clench, W.J., & S. L. H. Fuller. They achieve their greatest diversity in genera and species in temperate North America. Whorls of spire strongly arched or rounded. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. (Reeve, 1856). Shell squat, compact, cylindric-conical in shape, thick and opaque. The specie prefer quite clear water, of lakes and backwaters of streams andsprings. Florida authorities believe that the snail, native to eastern Africa, was reintroduced to the state when someone brought it home as a pet. B. Suture relatively deep, Whorls of spire rounded. (Call, 1886). Shell coiled to the left, with the aperture on the left side (Figs.147-158). Length of shell 2.1-2.8 mm (Fig. Adult shell small, less than 3 mm high; umbilicus narrow but not occluded by the columellar lip; columellar margin of the aperture weakly concave (Fig. Aperture broadly elliptical. Basal lip of peristome deeply receded. 200, 206). The LIOPLACINAE is endemic and include Campeloma, Lioplax, and Tulotoma. 1982. 102a, 102b). 68); lobe and flagellum with various patterns of dermal glands; central tooth of radula with basocones located on reflected margin of tooth (Fig. In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. 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). Their siphonal canal is merged with their aperture and called a "siphonal notch". Many have been synonymized, some undeservingly so. 11). Haitia pomilia pomilia Shell specimens should be cleaned and air-dried. The author has attempted to simplify the key to include the minimum anatomical data needed for accurate identification. Shell sculptured with vertical, weakly curved ribs and much finer spiral striations. Smooth-ribbed Hydrobe Body whorl rounded (Fig. (Thompson, 1968). Parietal margin of operculum slightly convex in outline (Fig. Apex slightly behind and slightly to the right of midline. Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). They are commonly found on live aquatic plant stems, dead leaves and sticks, and on bottles and cans. Aquatic; moves by gliding motion. Other families occur elsewhere in North America and in other continents. Freemouth Hydrobe (Mller, 1774). The Florida Department . (Couper, 1844). The state says a "gastropod enthusiast" collected unusual snails in the Coconut Grove area back in August. 1918. The molluscan family Planorbidae. Fingers crossed, it'll stay that way. Nuclear whorl 0.41 mm in diameter transverse to initial suture. Crystal Siltsnail Penis with a very long slender flagellum that extends beyond terminal lobe. 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. Prominent vertical ribs on middle and upper whorls. Purple-throated Campeloma 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. Interior of aperture livid white. The latter are placed in a small container filled with pond water. 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. The species made a return in 2011 and eradication efforts took another ten years. All snails in the subfamily Achatininae, including the giant African snail (GAS) (Lissachatina fulica), are regulated plant pests. 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. Elimia clenchi Clench, W.J., & R. D. Turner. 101). This snail was twice established in southeastern Florida and was successfully eradicated both times. There is no consensus in systematic biology about how to treat these forms.