Malacological Review, 12: 87-88. 142). The latter genus includes a single species, Cincinnatia integra (Say, 1817). 60). Apex nearly straight-sided or concave in outline. You can also navigate through the images by clicking on the arrows near the left and right edges of the enlarged view. Shell with prominent ribs and spiral chords on all whorls. Little is known about these animals, and diverse opinions exist as to how many species are recognizable. Female oviparous, never with embryos in uterus. Color uniform olive-green, never banded (Fig. Shell usually opaque in adults, with a dark red callus inside the lip (Fig. Some species that are endemic to Florida springs live in environments with nearly constant temperatures and apparently reproduce continuously throughout the year. Shell usually planispiral, but two species may have a flat-topped, elevated spire. Freshwater Snails of Florida ID Guide - Invertebrate Zoology Pewter Physa Aperture trapezoidal in shape; spire more robust, straight sided; with a shallower suture; parapical crest large (Fig. There were no references to cover the entire state. Florida Museum of Natural History Our beaches often rank at or near the top in the world. Umbilicus narrow, without a strong circum-umbilical ridge, outer lip without a callus on inner surface. Planorbula armigera wheatleyi The manual treats only those genera that occur in freshwater. 164, 167). It could take years to fully rid the state of the species, officials say. (Pfeiffer, 1839). (Say, 1825). Shell globose with a short depressed spire; body whorl ample; umbilicus closed. Few of the North American species have been studied to the extent that their taxonomy, geographic distributions, life histories, and ecology are documented. Brown Garden Snail | College of Agricultural Sciences Shellolive-colored; spire straight-sided. Penis of males with papillae along sides (Figs. Seminole Rams-horn Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Whorls of spire pointed and scalariform (steplike with nearly flat shoulders and deep sutures). Earlier whorls of adult shell with vertical ribs and spiral chords. Shell nearly smooth, sculptured with irregular growth striations. (Pilsbry, 1889). 61). 1982. (Thompson, 1968). Haitia pomilia pomilia Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Newborn shells white. (Vail, 1979). 12). Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. Length of shell 2.2-2.6 mm (Fig. Aperture non-operculate; mantle cavity modified into a lung. The best times to look for shells are after a high tide, after a storm, in the morning, and during the winter months. 84). Shell nearly smooth, sculptured with irregularly spaced incremental striations (Figs. . 16, 29). The snail can wreak havoc on agriculture and carry a parasite that causes meningitis in humans.. A taxonomic revision of the feshwater snails referred to as Elimia curvicostata, and related secies. Shell conical to elongate-conical; whorls 4.0-4.5 with a deeply impressed suture. They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy. 48). Spiral angulation on whorls sharp and prominent in juveniles, usually becoming convex-rounded or smooth on last whorl in adults. The reader may be troubled by the imprecise shell characteristics that are used in the key. 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. Pilsbry, H. A. It is represented in North America by Viviparus. Two-ridged Rams-horn This genus of minute freshwater snails is endemic to the Florida peninsula. Malacologia, 23: 81-82. Nuclear whorl 0.41 mm in diameter transverse to initial suture. Female ovoviviparous with about 50 embryos in uterus; embryos clearly evident through clean shells. Penis with one papilla on left margin (Fig. Wekiwa Hydrobe In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. Shell sculptured with prominent nodes overlapping suture and forming crenulations. (Thompson, 1968). JACKSONVILLE, Fla. - An invasive giant African snail that has already had to be eradicated twice in the last 50 years in Florida is back and one county is on high alert. Pseudosuccinea columella It was well received, and it served the interests and needs of many people. Nautilus, 19: 34. Indented Duskysnail The fixative may damage the shell, but that is unimportant for anatomical purposes. 7 new spider species . 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. Their siphonal canal is merged with their aperture and called a "siphonal notch". Three species in Florida were introduced from Southeast Asia. It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). Giant African Snail | National Invasive Species Information Center Shaggy Ghostsnail Overshadowing this genetic divergence are frequent examples of convergent evolution of similar adult shell characters among distantly related species. They complete their life cycles in one year. Horse conch in mud Horse Conch snail The mature horse conch can be two feet long! Conical with relatively slender whorls. Pomacea paludosa - Wikipedia 40). Apical whorls depressed; body whorl obtusely angular above and sharply carinated around funnel-shaped umbilicus. 1918. 94). Shell ovate in shape, about 1.2-1.5 times as high as wide. 180-193). 161, 164, 167). Shell elongate-conical, with about 5-7 whorls. Introduction to the Physidae (Gastropoda, Hydophila): biogeograhy, classification, morphology. giant applesnail (Pomacea maculata) - Species Profile - USGS Shell conical, spire moderatly high. Davis, G.M., M. Mazurkiewicz, & M. Mandracchia. Size small I I to medium, 8-12 mm in length. 140). (Jay, 1839). Aperture relatively shorter, about half or less the length of the shell. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). The number of subfanilies recognized in the Hydrobiida is unsettled. 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 . (Call, 1886). 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. Cone Snails - Central and South Florida Gastropod Seashell 81-83). (Gould, 1841). A systematic study of the Family Physidae (Basommatophora: Pulmonata). Tryonia aequicostatus The Florida Department . 35). Sculpture consisting of distinct spiral striations and threads superimposed on growth striations (Fig. By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Thompson, F. G. & R. Hershler. Some species are dioecious with a normal representation of males and females. Texture dull. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Rhapinema dacryon Hood Ancylid 170). Slender Walker Viviparus georgianus Outer lip of aperture arched forward (Figs. Basch (1963) recognized five valid species. Spire short and compact, about 0.5-0.7 times height of aperture in mature specimens, proportionally longer in juveniles (Fig. Attains a length of about 30-36 mm (Figs. Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. Nucleus of operculum spiral and then surrounded by concentric growth rings (Fig. Minor spiral sculpture weak or absent. Generally with distinct axial and spiral striations. Melanoides tuberculata (Muller) in Florida. 89, 90). Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. Taylor (2003) monographed the family Physidae. (Vanatta, 1935). Occasional Papers on Mollusks, 2: 385-412. Spire depressed, much less than height of aperture, occasionally planular (Figs. Suture weakly impressed. Apex very short, only slightly raised above body whorl. Umbilicus narrow (Figs. The . Shell 2.8-3.7 mm long. Nautilus, 83: 72. Body whorl relatively rapidly expanding in diameter (Fig. 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. Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). By Ker Than for National Geographic News. Aperture elliptical or trapezoidal in shape. 130). 159-196). Outer lip strongly sinuous. The Florida Department of Agriculture and Consumer . This revision follows the classification proposed by Taylor. Flatwood siltsnail 137, 139). Shell highly variable in shape; freshwater forms olivaceous or brown; adults with about 4.5-6.0 whorls; about 3.5-4.5 mm long (Fig. Whorls globose, with a deeply impressed suture. Horntail snails invade Florida with its first US appearance Apex in about middle of shell. Biomphalaria havanensis Operculum calcareous with two pegs on inner surface (Figs. Apical whorls bluntly rounded and not conspicuously elevated. CLICK ON EACH PHOTO Fallen Angel Wing -Atlantic Mud Piddock Boring Angel Wing- Striate Piddock Rice Olive Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. 83). Campeloma limum Penis with large a terminal lobe on the left side and a smaller appendix-like flagellum on the right side. Most freshwater hydrobiids in the eastern United States are annual species. This is not the first time Florida has dealt with an invasion of giant snails. Low-dome Physa Adult size small, about 12-16 mm long (Fig. The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. Amnicola dalli. Fossaria cubensis Fossaria modicella Aphaostracon xynoelictus Taylor, D. W. 2003. Giant invasive snail sends one Florida county into quarantine 32). Interior of aperture livid white. Shell usually squarish or rectangular in shape. (Thompson, 1968). Dangerous parasite found in South Florida snails - Sun Sentinel This family contains twelve genera in North America. Goblin Elimia) Elimia vanhyningiana (Goodrich, 1921). Weak spiral striations present on top of growth striations (Figs. Another variety, with cream-colored flesh and mottled brown shells, was detected in 2022. Credit: Craig Pittman. Shell more slender, about 0.30-0.35 times as wide as high. Recent studies treat amnicolids as a separate families. Lower margin of aperture not advanced beyond upper margin. Rotund Mysterysnail Apex subacute, distinctly eccentric to the right of the midline. "If you see one of these snails,. 128). 159, 162, 165). Florida Land Snail Gallery - A Pictorial Hershler, R. & F. G. Thompson. 111). 1934. Review of the Planorbidae of Florida with notes on other members of the family. Operculum tightly coiled with four slowly expanding whorls (Figs. Stately Elimia Snails and Slugs - Gardening Solutions - University of Florida Whorls of spire strongly arched or rounded. The aquatic snail fauna of the southeastern United States has long been recognized for its richness and diversity. 172). Endemic New World genera occur in Cuba, Jamaica, and northern South America. Thompson, F. G. 1983. Ponderous Siltsnail Attains a length of 30-40 mm (Fig. Umbilicus closed or narrowly perforate. Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. Adult shells about 40-60 mm high (Fig. Shell elongate, thin, transparent, grayish. Pyrgophorus platyrachis