(Menke, 1839). Amber to milky white in color (Figs. Is non-native to the area, in our case northwest Florida 1918. 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. Penis with 3 papillae along right margin (Fig. Rock Fossaria The basic shell morphology of the PLANORBIDAE is left-handed, or sinistral (FIGS. Mantle cavity with gill on dorsal surface. 105, 106). Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). 120). 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. Floridobia is known from peninsular Florida north along the Atlantic seaboard to Maine. (Mihalcik & Thompson, 2002). Kites belong to the same bird family as hawks and eagles, Accipittridae. Shell with a brownish hue. Rasp Elimia Ponderous Siltsnail Radial striations present or absent Laevapex Walker, 1903. Freemouth Hydrobe Hebetancylus excentricus 22). Shell very thin, fragile, transparent. Three occur in Florida. Incremental striations uniformly weak. 66). About 4.2-4.6 weakly arched whorls with a weakly impressed suture. Newborn shells white. (Thompson, 1968). Melanoides turricula Fred G. Thompson (1934-2016) Excentric Ancylid (Say, 1829). Umbilicus narrow, deep (Fig. Thompson, F. G. 1969. Females with an egg-laying groove or sinus on right side of foot; eggs deposited on substrate. Pomacea paludosa (Thompson, 1968). 101). By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . 129). 97). Laevapex peninsulas 5: 1-140. The fixative may damage the shell, but that is unimportant for anatomical purposes. Occasionally it may be necessary to turn to other information sources to determine identifications with a greater degree of certainty.. Hatia pomilia hendersoni The Florida Department . Umbilicus closed. 1, 2). Floridobia porterae Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Univ. Conical with relatively slender whorls. 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. Regal Hydrobe Lower margin of aperture not advanced beyond upper margin. Base of last whorl with prominent spiral ridges. Define Invasive Species: must have ALL of the following -. Aphaostracon asthenes Floridobia wekiwae 70). Size small, discoidal, adults seldom exceeding 4 mm in width. 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. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. 90). Seminole Siltsnail 161, 164, 167). 55). (Fmr.) Melanoides tuberculata (Muller) in Florida. 132). Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Operculum tightly coiled with four slowly expanding whorls (Figs. (Fig. Biochemical studies show that in Elimia shell characters are conservative indicators of genetic divergence (Mihalcik & Thompson, 2002). 19-21). Males with penis at anterior right corner of mantle cavity. In the USA, it was first identified in New Orleans in 1939, but now is found in the Gulf Coast states from Florida to Texas, as well as in Puerto Rico and Hawaii. Penis with 5-15 papillae along right margin arranged in 1-2 rows (Fig. By Ker Than for National Geographic News. Umbilicus open. Medium- to large-sized tropical freshwater snails. 12). 34); penis frlattened, blade-like (Fig. Shell elongate-conical, with about 5-7 whorls. Spiral sculpture absent. Swallow-tailed kites are spring and summer residents; snail kites are specially adapted to feed on apple snails in Florida freshwater wetlands year 'round. Shell unicolor brown, never mottled with reddish spots. The bodies of large snails, such as viviparids and pilids, should be pulled from the shell. 1992. 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. Shell usually small to medium (2-25 mm). Ferrissia hendersoni Te, G.A. Revista de Biologia Trpical, 51 (supplement): 1-299. The number of subfanilies recognized in the Hydrobiida is unsettled. Height of shell about 23-26 mm (Figs. Aphaostracon monas (Thompson, 1968). 36); males with a copulatory appendage, a penis (Fig. Live snails for shell studies should be preserved in 70 percent alcohol. The snails live in the bays and mudflats, but after they die their shells wash up on the beaches. Numerous species of exotic snails are serious pests of plants and threats to public health. A Guide to Florida Bird Species. Florida announced on Wednesday it has eradicated the African giant land snail - an invasive species that can destroy homes and infect people with meningitis - for the second time. Aperture broadly ovate. Now officially known as simply a Snail Kite, the subspecies from Florida and Cuba (Rostrhamus sociabilis plumbeus) formerly known as the Everglade Snail Kite was listed as endangered in 1967.The range of the Florida population of Snail Kites is restricted to watersheds in the central and . The Florida Department of Agriculture and Consumer . Alexander Siltsnail Apex nearly straight-sided or concave in outline. Outer lip partially flattened in adults. 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. . Helisoma anceps anceps Aperture usually open; occasionally with a horizontal, shelf-like septum closing posterior part (Fig. The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. Papilla with a duct that leads to a blind caecum in nape of snail. 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. 1979a. Laevapex fuscus Snails have invaded some local areas throughout northern Santa Rosa and Escambia Counties this summer. Shell about 0.38-0.41 times as wide as high and about 20-27 mm long. Amnicola is a widespread genus in temperate North America. Goodrich, C. 1942. Shell elongate with pointed conical spire. Elimia buffyae Only Elimia is found in Florida. Evolution has occurred through reproductive specialization, with each genus and most species having distinctive patterns of dermal glands. Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). Shell ovate or subcircular in shape, smooth or with radial sculpture localized anteriorly. The focus on most investigations was on rivers north of Florida, and little attention was given to the Florida fauna. Aperture loosely attached to or widely separated from preceding whorl. Click on the link in the row that best matches your snail. 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 . Jan. 28, 2020 . Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. Adult size small, about 12-16 mm long (Fig. Walkerana, 1: 81-365. (Say, 1825). 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. 58). Haitia pomilia pomilia Shell elliptical-ovate in shape. 57). Malacological Review, Suppl. Knobby Elimia 115, 116). Escambia Elimia 171-173). Walker, B. Others were new taxa not found in earlier surveys. Pomatiopsis lapidaria Most other genera have received relatively minor attention, and their systematics are in flux. Hydrobiids are small- to medium-sized operculate snails that live primarily in brackish and fresh water. (Vanatta, 1934). Apex proportionally longer, about 0.3-0.5 times length of shell. Shell short and stocky. . Conical Siltsnail Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. Little is known about these animals, and diverse opinions exist as to how many species are recognizable. Aperture elliptical or trapezoidal in shape. Shell dark brown. (Pilsbry and Johnson, 1903). Malacological Review, 24: 55-72. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. Conical with relatively obese whorls. 169, 172). 164, 167). Aperture terminating below periphery of body whorl. Shell elongate-conical. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. The shells should be rinsed frequently in tap water during the cleaning process to prevent etching by the acid. 180-182). 38). Peristome incomplete around aperture. Newborn young about 4.5 mm in diameter (this can be determined by removing juveniles from brood pouch). Low-dome Physa Aphaostracon rhadinus Mantle richly marked with reddish-brown blotches and spots. Aperture enlarged (dilated). They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . Shell keeled or strongly angular at the periphery (Figs. Carib Physa A taxonomic revision of the feshwater snails referred to as Elimia curvicostata, and related secies. Shell large, 3.7-4.5 mm long; adults with 4.6-5.3 whorls; lower corner of aperture slightly extended forward as a weak, tongue-like projection (Fig. Applesnails are tropical to subtropical organisms and cannot survive below 50F in the winter (Florida DOACS, 2002). Aperture oval, about 0.75 times as wide as high. Fingers crossed, it'll stay that way. (Clench & Turner, 1956). Shell 2.8-3.7 mm long. Penis simple, elongate-conical, without papillae (Fig. Whorls uniformly rounded, not flattened above (Fig.144). Shaggy Ghostsnail On sibling species and genetic diversity in Florida Goniobasis (Gastropoda, Prosobranchia, Pleuroceridae). 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. Vertical ribs relatively strong and more widely spaced. Purple-throated Campeloma Additional genera occur in the Orient, Southeast Asia, Africa, and South America. (Lea, 1834). Adult shells about 40-60 mm high (Fig. Shell nearly smooth, sculptured with irregular growth striations. Nuclear whorl 0.29-0.33 mm in diameter. Marisa cornuaurietus (Weatherby, 1879). Our knowledge of the fauna has greatly increased during recent years, and a summary of this information was desirable to facilitate other kinds of study. This species is a fast and voracious predator, hunting and eating other snails and slugs. Shell discoidal, grayish-white in color; transparent when fresh. Baker, F.C. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. 15). Shell elongate conical, spire high. Prominent vertical ribs on middle and upper whorls. The following key includes all of the species that occur in Florida and some that occur in Alabama, Georgia, and South Carolina. . The horntail . 6). Sculpture variable. 121). 10). (Thompson, 1968). Aperture narrowly in contact or free from preceding whorl. 62). Shell subcircular, smooth, often encrusted with dark material. Amphibious; moves by step-like mode of progression (Fig. Shell conical, spire moderatly high. Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). Shell squat, compact, cylindric-conical in shape, thick and opaque. Penis with different arrangement of papillae than above. Operculum corneas, without pegs on inner or outer surface. Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. Occasional Papers on Mollusks, 2: 261-87. Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). 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. Identification. 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. Shell sexually dimorphic in size, males about one-third as long as females. Pilsbry, H. A. 140-146). Color often glossy reddish brown. 75, 76). This family contains twelve genera in North America. 1962. It could take years to fully rid the state of the species, officials say. This is particularly so in the Pulmonata. 98). The aquatic snails of the Family Hydrobiidae of peninsular Florida. They are most common on tropical islands but occur also in cold regions, where they hibernate. 2015; Jayashankar et al. 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. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Lip of adult shell usually with a thick crest externally and an internal callus. Aperture moderately oblique. Fortunately in Florida, the species are relatively easy to distinguish. (Vanatta, 1935). Quilted Melania Pseudosuccinea columella 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. 1991. Snails in wild populations range in shell color from yellow to brownish-black, and may contain stripes or dimpling. Pseudotryonia brevissimus Nautilus, 83: 72. Lobe and flagellum with various patterns of dermal glands (Fig. (Sowerby, 1878). Shell with 4.4-5.0 whorls; about 3.7-5.2 mm long. Thick-lipped Rams-horn 60). Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. Spilochlamys is most similar to the next genus, Cincinnatia, from which its shell usually differs by having a more deeply impressed suture, more strongly shouldered whorls, and a wider umbilical perforation. However, this appears to be an over reduction, and several southern species were synonymized that appear worthy of recognition. 64). 125); accessory crest absent on penis. Its brown spotted exterior provides camouflage, making it a challenge to spot. Littoridinops palustris Length of shell 2.1-2.8 mm (Fig. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Typically, land snails live on or near the ground, feed on decaying plant matter, and lay their eggs in the soil. Pilsbry, H. A. It is hoped that this manual will stimulate other biologists to contribute to our knowledge of freshwater mollusks. (Pfeiffer, 1839). 201, 207). Additional surveys found four different populations all associated with the CSX railways. 70, 71). Shell conical or cylindrical-conical in shape; spire elevated; body whorl not disproportionately voluminous; umbilicus closed or open. University of Florida Attains a length of 30-40 mm (Fig. Suture more deeply impressed than in 77a. (Thompson, 2000). 99). (Fig. Penis with invaginated cave-like pit within U-shaped superior tubercles. Penis filament white. Video. Shell with spiral chords or spirally arranged series of nodes. Definitive identifications may require anatomical dissections and reference to other literature. Aquatic; moves by gliding motion. Pewter Physa Floridobia fraterna Average length about 4 mm (Figs. Common name: Florida applesnail Taxonomy: available through Identification: This species is the largest freshwater gastropod native to North America (Burch 1982). Suture not as deeply impressed as in 77b. (The penis is normally recurved into the mantle cavity, except during mating. Wekiwa Hydrobe Nuclear whorl slightly protruding, 0.29-0.41 mm in diameter transverse to initial suture. Rails, gallinules, coots and cranes. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. Peristome complete around aperture. Shell more slender, about 0.30-0.35 times as wide as high. Penis with two or more longitudinal crests within U-shaped superior tubercle (Fig. Green Cove Springsnail Base of shell with dark red spiral band. 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 free from, or only in slight contact with, preceding whorl. Floridobia alexander Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). As of last . A single glandular crest present on apex of terminal lobe (Figs. 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. 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. (Thompson, 1968). Only genera that enter fresh water are treated. Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. Horse conch in mud Horse Conch snail The mature horse conch can be two feet long! In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. Basch (1963) revised the classification and recognized only twelve species. Some were range extensions for species known to occur in adjacent areas. The radula is then thoroughly rinsed in distilled water, stained, and mounted on a microscope slide. Recent studies treat amnicolids as a separate families. 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