florida snail identification

Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. Suture relatively shallow. Minor spiral sculpture weak or absent. (Fig. 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. Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Shell unicolor, never banded. Basch, P.F. Length of shell 2.6-3.0 mm (Fig. Mantle diffusely pigmented or unpigmented. (Say, 1817). Penis with 4-6 papillae along right margin (Fig. Clench, W.J., & R. D. Turner. 172). Red-rimmed Melania Prominent minor spiral sculpture along periphery. It occurs in India, Sri Lanka, Bangladesh, Nepal, Pakistan and Brazil (Figure 1) (Raut and Ghose 1984; Biswas et al. (Thompson, 1968). Blackwater Ancylid Shell grayish-white. 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 . Shell conical or cylindrical-conical in shape; spire elevated; body whorl not disproportionately voluminous; umbilicus closed or open. Revista de Biologia Trpical, 51 (supplement): 1-299. (This character separates only the genera under consideration; genera from other areas of the world do not conform to this distinction.) (Anthony, 1860). Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Prepared by Fred G. Thompson, Fmr. 169). Vernacular names are given only for species. This genus contains three species. Radial striations present on shell but not on apex. Umbilicus of shell closed. Banded Mysterysnail The International Commision on Zoological Nomenclature has ruled that AMPULLARIIDAE is the valid name for this family of snails. Mantle mottled with black spots and blotches. Definitive identifications may require anatomical dissections and reference to other literature. Lower margin of aperture not advanced beyond upper margin. Shell short and stocky. Outer lip strongly sinuous. 1-69. 198, 205). Graphite Elimia (Thompson, 1968). 95). Walker, B. Two-ridged Rams-horn 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. Amnicola is a widespread genus in temperate North America. It is characterized by the lobed shape and glandular patterns of the penis. 61). Those available covered only part of the state or part of the fauna. Nautilus, 32: 71. Sculpture above periphery of whorls consisting of nodes arranged in vertical and spiral rows. Shell dark brown. Size: 2-4 cm. Ovate Campeloma Campeloma floridense Shell sculptured with prominent nodes overlapping suture and forming crenulations. Size smaller than last species, seldom exceeding 10 mm in width (Figs.194-196). One species, C. chinensis malleatus (Reeve, 1863) (Fig. 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. Operculum with about 3 whorls (Fig. The current status of these introductions is not known. 200, 206). Littoridinops monroensis Aperture without serrate denticles on parietal wall. Penis as illustrated (Fig. Size larger, adults 7 mm or more in width. Tryonia aequicostatus This manual recognizes 113 species and subspecies that occurring in Florida and the list will increase with time. Wm. Bulletin of the Museum of Comparative Zoology, 129: 401-61. Widely umbilicate. (Thompson, 2000). After a few years in storage glandular tissues in the female reproductive system deteriorate, and the process gradually spreads to destroy all but the terminal genital structures. Operculum corneas, without pegs on inner or outer surface. Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. Height of shell about 14-16 mm; width, 10-12 mm (Figs. Some species that are endemic to Florida springs live in environments with nearly constant temperatures and apparently reproduce continuously throughout the year. 36). The lightning whelk ( Busycon sinistrum) is one of the larger univalve snails found in Florida waters. Some hydrobiid snails from Georgia and Florida. 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. 149). After the shells are thoroughly rinsed, they can be air-dried in cardboard trays. 110). Low-dome Physa 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. It is most common in Southwest Florida, and northwest Florida. Thompson, F. G. 1997. They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy. It should be remembered that it is only a key which emphasizes shell characters. Whorls 3.0-4.0. Aperture free from, or only in slight contact with, preceding whorl. All snails in the subfamily Achatininae, including the giant African snail (GAS) (Lissachatina fulica), are regulated plant pests. Shell conical to elongate-conical; whorls 4.0-4.5 with a deeply impressed suture. Live snails for shell studies should be preserved in 70 percent alcohol. Peristome complete around aperture. Penis with invaginated cave-like pit within U-shaped superior tubercles. 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. (C.B. It is essential that clean specimens be examined under proper lighting to observe diagnostic sculpture characteristics. 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. 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 more slender and attenuate; spire more elongate in adults, about 0.7- 1.0 times height of aperture. Umbilicus broad, shallow (Fig. Channeled Applesnail Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. Shell very thin, fragile, transparent. Sexes not conspicuously dimorphic in size. Identification Damage from snail and slug pests appears as oblong, irregular holes at both the margin and the center of leaves and flowers. In view of the inconsistency of these shell characters, these three forms may represent only a single species, Campeloma limum, which is widely distributed from the Escambia River system of Florida and Alabama east and north into North Carolina and Virginia. 16, 25, 28). Shaggy Ghostsnail 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. Axial striations distinct (Fig. Apex in about middle of shell. Shell large, 4.0-4.6 mm long; thick and opaque. 151, 152). They are variable in their shell characteristics, and some samples may be difficult to identify. Shell without conical spines, although spiral threads may be present. 5). Planorbella scalaris Sculpture consisting of distinct spiral striations and threads superimposed on growth striations (Fig. Length of shell 3.0-4.0 mm (Fig. The state says a "gastropod enthusiast" collected unusual snails in the Coconut Grove area back in August. Vail, V. A. Baker, F.C. Radial riblets on entire surface of shell except apex. 116a, 116b). Malacological Review, 19: 85-86. 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.. 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). Adult shells about 40 70 mm high (Fig. Apex slightly behind and slightly to the right of midline. 1963. 2015; Agudo-Padron 2018). Length of shell 2.2-2.6 mm (Fig. CLICK ON EACH PHOTO Fallen Angel Wing -Atlantic Mud Piddock Boring Angel Wing- Striate Piddock Rice Olive 97). Accessory crest absent. Apex very obtuse, almost in the middle of the shell. Incremental striations uniformly weak. Florida's . 32). Campeloma parthenum Florida Press, Gainesville: i-xv, 1-68; pls. When trying to identify the type of snail, the easiest method is to check it out closely. The best times to look for shells are after a high tide, after a storm, in the morning, and during the winter months. Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. Sculptured with regularly spaced, fine, incremental threads and spiral striations; spiral striations evident only on base of whorls in some specimens. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. Apex smooth, with no trace of radial striations (Fig. 7-9). 158). 1945. Aperture relatively shorter, about half or less the length of the shell. Four species currently are recognized, but the genus has received very little study over most of its range. 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. In previous editions of the manual the Florida species were placed in the genus Physella. Tadpole Physa 1, 2). 115, 116). Most freshwater hydrobiids in the eastern United States are annual species. 159, 162, 165). Others were new taxa not found in earlier surveys. 7-9). Parietal margin of operculum concave (Fig. Carib Fossaria Operculum tightly coiled with four slowly expanding whorls (Figs. The radula can be studied by dissecting out the buccal mass and macerating it in clorox or sodium hydroxide. Never preserve shell specimens in formalin. The . Inside of lip with or without a reddish callus but callus never dark red in color. 41-43). (Lea, 1842). 80). Melanoides tuberculata Shell coiled to the right, with the aperture on the right side (Figs. Indented Duskysnail Somatogyrus is distributed from the Mississippi River drainage system east to Atlantic coastal streams, and south to the Gulf coastal drainage systems. The fixative may damage the shell, but that is unimportant for anatomical purposes. Thick-lipped Rams-horn 1991. Female oviparous, never with embryos in uterus. Spire shorter, conical, 0.7-1.3 times length of aperture, nearly straight-sided in outline, suture of whorls weakly or moderately impressed. Elimia clenchi Floridobia porterae Frequently the shells of ampulariids and viviparids are very similar. Shell medium-sized or large; 5.4-7.5 mm long; thick and opaque; ovate or globose; apical whorls depressed; sides of spire rounded; body whorl conspicuously enlarged, ample, rapidly descending to aperture along last half whorl. 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. Aphaostracon pachynotus This will lead you to the final choice which identifies the snail. Nautilus, 83: 72. The family contains numerous genera and species, some of which are important medically as intermediate hosts for trematode parasites. Height of shell about 23-26 mm (Figs. Penny Sprite) Micromenetus floridensis (Baker, 1945). Penis of males with papillae along sides (Figs. (Thompson, 1968). 107, 108). (Frauenfeld, 1863). 66). Pseudosuccinea columella Penis with a single papilla along left margin (Fig. 67). Operculum neomelanian, with a small, rapidly expanding nucleus located near the basal margin (Fig. (Thompson, 2000). The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. Aperture broadly elliptical. 89-91). Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). (Lamark, 1822). It is hoped that this manual will stimulate other biologists to contribute to our knowledge of freshwater mollusks. Ichetucknee Siltsnail 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. Female shell about 3.5-4.0 mm long (Fig. Whorls of spire weakly scalariform, causing the suture to be deeply incised. Aphaostracon monas Apex fairly prominent as a rounded knob in the right posterior quadrant (Figs. 127); superior tubercles on penis arranged in oblique longitudinal series. Papilla with a duct that leads to a blind caecum in nape of snail. 101). Shell specimens should be cleaned and air-dried. It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). Mimic Pondsnail There is no consensus in systematic biology about how to treat these forms. The species was eradicated again in 2021 after being detected in 2011 in Miami-Dade County, according to FDACS. Umbilicus open. (Lea, 1858). 36); males with a copulatory appendage, a penis (Fig. The shell characters given above for separating the families apply only to Florida species. Spire raised and flat-topped. Embryonic shell smooth, without spiral chords (Fig. 146). Apex subacute, distinctly eccentric to the right of the midline. 131). Penis as illustrated (Fig. Elimia floridensis ssp. Lobe and flagellum with various patterns of dermal glands (Fig. 102a, 102b). Identification KeysThese files are all keys for the identification of various kinds of organisms. Pomatiopsis lapidaria 53). 174-176). 37), which is important for generic and specific diagnosis. Peristome complete around aperture. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. Operculum with about 6 slowly expanding whorls (Fig. Whorls straight-sided, not scalariform; suture hardly distinct; aperture terminating at periphery of last whorl; vertical ribs weaker and closely spaced; adult size about 25-30 mm long (Fig. Haitia cubensis Hood Ancylid Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Video. Choctaw Lioplax Basal lip of peristome deeply receded. 34); penis frlattened, blade-like (Fig. Floridobia vanhyningi 72-74). 77-79). Aquatic; moves by gliding motion. Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). Dasyscia franzi Freemouth Hydrobe 84). 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. Shell squat, compact, cylindric-conical in shape, thick and opaque. Shell medium-sized, 3.0-3.8 mm long; thinner, translucent or transparent in life; tear-shaped; spire raised and nearly straight-sided, pointed; body whorl less conspicuously enlarged, not descending to aperture along last half whorl. (Fig. Thompson, F.G. 1979. Shell ovate or subcircular in shape, smooth or with radial sculpture localized anteriorly. 16, 29). However, formalin is an excellent fixative for short-term preservation. 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.

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