Miscellaneous Publication of the Museum of Zoology, University of Michigan, 6: 1-213. Umbilicus closed or narrowly perforate. EDRR Invasive Species. 1962. Aperture narrowly in contact or free from preceding whorl. Parietal margin of operculum concave (Fig. Floridobia ponderosa The lymnaeid fauna of the southeast is particularly depauperate compared to more northern and western regions of the continent. Thin and translucent or transparent. Suture relatively shallow. 77-79). Apex subacute, distinctly eccentric to the right of the midline. 80). Sci. (Thompson, 1968). (Couper, 1844). They achieve their greatest diversity in genera and species in temperate North America. Shell of various shapes and sculpture. 97). 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. Curator of Malacology Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. The deterioration process is not reversible. The beaches in Florida are perfect for shelling and beach combing. Penis with 2 or 3 papillae on left margin (Fig. Click on images to enlarge them. Female shell about 3.5-4.0 mm long (Fig. Until recently the entire knowledge of the Florida freshwater snail fauna was based on miscellaneous papers dealing with single species, groups of closely related species or single river systems. Shell more slender, about 0.30-0.35 times as wide as high. By Ker Than for National Geographic News. Umbilical perforation narrow, 1/8 1/10 diameter of shell. Mantle mottled with black spots and blotches. Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. Thompson, F.G. 1979. Penis with large papilla on right margin near base and one or two papillae on left margin near distal end (Figs. 56). Haitia pomilia pomilia The current status of these introductions is not known. Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). Shell smooth. NERITIDAE Malacological Review, 12: 87-88. The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. Ph.D. thesis, University of Michigan, i-xii, 1-324. They were created by or for the Florida Department of Environmental Protection, or its predecessor agencies.Amphipod Key, Volumes 1-5 - LeCroy, Sara E. An Illustrated Identification Guide to the Nearshore Marine and Estuarine Amphipoda of Florida:Volume 1 (2000, PDF, 18 MB).Volume Newborn young about 4.5 mm in diameter (this can be determined by removing juveniles from brood pouch). However, formalin is an excellent fixative for short-term preservation. 34, 35) (Pomatiopsis, Fig. This is essential in the case of the Hydrobiidae. Penis with a small blade-like flagellum along right margin and a heavy mid-ventral ridge that bears 8-11 narrow transverse dermal glands; other glands present on terminal lobe and flagellum (Figs. It is believed the snail was introduced via the railway cars coming from Mexico. 1979b. Size larger, adults 7 mm or more in width. Pomacea canaliculata (Lamarck, 1822) (Gastropoda, Prosobranchia, Pilidae): A freshwater snail introduced into Florida, U. S. A. Malacological Review, 30:91. You can also navigate through the images by clicking on the arrows near the left and right edges of the enlarged view. Shell sculptured with fine spiral threads. Interior of aperture livid white. Aphaostracon monas Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. (Thompson, 1969). (Weatherby, 1879). Whorls 3.8-4.3. Umbilicus widely perforate, accentuated by a strong circum-umbilical keel. (Vanatta, 1934). An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. (Lea, 1842). Clench, W.J., & R. D. Turner. Parietal margin of operculum slightly convex in outline (Fig. Slackwater Elimia Live field samples should be divided into two groups, one to be preserved for shells, the other to be preserved for anatomical specimens. 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. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. The genus is found along the east coast of North America from Maryland south to Tabasco, Mexico. It became increasingly important to provide an identification manual of the freshwater snails of Florida for many reasons. 137, 139). Vail, V. A. 55). Periphery variable. Shell elongate conical, spire high. Identifications are difficult in many instances without properly preserved specimens. 45). 60). As was anticipated, further work on the systematics of the southeastern freshwater snail fauna created the need for subsequent revision in 1999, and for this updated version. Each snail has both female and male reproductive organs, so they can reproduce rapidly. Earlier whorls of adult shell with vertical ribs and spiral chords. Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. The aquatic snail fauna of the southeastern United States has long been recognized for its richness and diversity. Elimia dickinsoni The snails remain a threat in Hawaii and the Caribbean after their eradication in Florida in 2021. For the purpose of completeness, the three parthenogenetic forms and C. geniculum are included in the key. Two occur in Florida. 173). (Haldeman, 1841). Penis filament white. After the shells are thoroughly rinsed, they can be air-dried in cardboard trays. Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands. Newborn young about 3 mm in diameter. Shell elongate-conical. (Lea, 1862). Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Mantle richly marked with reddish-brown blotches and spots. The shells should be rinsed frequently in tap water during the cleaning process to prevent etching by the acid. 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 . Spire shorter, conical, 0.7-1.3 times length of aperture, nearly straight-sided in outline, suture of whorls weakly or moderately impressed. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. 90). Whorls of spire weakly scalariform, causing the suture to be deeply incised. Stately Elimia Small- or medium-sized snails need to be identified with the aid of a binocular dissecting microscope that is equipped with an ocular micrometer calibrated to 0.1 mm accuracy so that precise measurements can be made. Malacological Review, Suppl. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. 35). 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. Horse conch in mud Horse Conch snail The mature horse conch can be two feet long! Shell elliptical in shape. Like. shell with 3.9-4.2 whorls (Fig. Inferior crest usually present. Shell sculptured with prominent nodes overlapping suture and forming crenulations. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. NotogiIlia wetherby The greatest diversity of genera and species is in the Indo-Australian region. Shell conical, spire moderatly high. Incremental striations uniformly weak. 200, 206). (Thompson, 1968). Shell very thin, fragile, transparent. Shell elongate. Pilsbry, H. A. Outer lip straightened just below shoulder; straightened portion lying at an angle to axis of shell (Figs. They're different than the ones found previously. Melanoides turricula Peristome complete around aperture. Aperture loosely attached to or slightly free from preceding whorl. Pyrgophorus platyrachis Umbilical perforation wide, 1/6 to 1/8 diameter of shell. 16, 22-28). Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. Most freshwater hydrobiids in the eastern United States are annual species. Aperture oval, about 0.75 times as wide as high. Lip of adult shell usually with a thick crest externally and an internal callus. 1979a. Penis with two or more longitudinal crests within U-shaped superior tubercle (Fig. Black-crested Elimia) Elimia albanyensis (Lea, 1864). The International Commision on Zoological Nomenclature has ruled that AMPULLARIIDAE is the valid name for this family of snails. Unlike other brown-tinted giant snails, this. Operculum tightly coiled with four slowly expanding whorls (Figs. It also was the first adequately illustrated faunal summary published on the Southeast. One species, C. chinensis malleatus (Reeve, 1863) (Fig. Campeloma limum Last whorl not shouldered (Figs.155, 156). 197, 204). Length of shell 2.4-3.4 mm (Fig. About fifteen species have been described from North America. 34, 35). Basch, P.F. The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. The VIVIPARINAE is widely distributed throughout Europe, Asia and eastern North America. 174-176). Proceedings of the Academy of Natural Sciences of Philadelphia, 86: 29-66. 33); males without copulatory structures. Females ovoviviparous or oviparous. They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy. Wm. Aphaostracon hypohyalina Mantle spotted with black, shaded or unmarked; terminal lobe of penis with complex crests that cause it to look like an animals head; flagellum slender, with scattered and discontinuous glands along edge (Figs. Penis with 0-6 papillae confined to right margin (Figs. The reappearance of an invasive snail species forced state officials to enact a quarantine order two weeks ago for residents of Florida's Pasco County, an area north of Tampa along the gulf. Shell without conical spines, although spiral threads may be present. 149). (Thompson, 2000). Aperture strongly oblique. Last whorl of adult shell smooth or with growth striations, but not with ribs and spiral chords. Pseudosuccinea columella Size smaller than last species, seldom exceeding 10 mm in width (Figs.194-196). The first snail is Euglandina rosea, the "rosy wolf snail" it is carnivorous, and eats other snails.The second snail is Zachrysia provisoria, the "garden provisoria", which can be a pest as it enjoys fruits and vegetables.These snails are both native to Florida; neither species can survive in the wild in cold climates, but both species have been introduced to other . TAMPA, Fla. - A horntail snail, an invasive pest common in India, has been found in Miami-Dade County, spurring agriculture officials to start a program to prevent the possible spread of the species, the Florida Department of Agriculture and Consumer Services said Thursday. Shell globose with a short depressed spire; body whorl ample; umbilicus closed. Aphaostracon xynoelictus Adults about 2-3 mm long (Figs. Apex of shell flat, though it may be raised above the periphery of the last whorl (Figs.