florida snail identification

Identification should conform with all data in the key and with geographic distributions. Thompson, F. G. & R. Hershler. Penis with different arrangement of papillae than above. 49, 50). Spire short and compact, about 0.5-0.7 times height of aperture in mature specimens, proportionally longer in juveniles (Fig. Adult size small, about 12-16 mm long (Fig. 44). 94). Thompson, F. G. 1969. Ferrissia mcneilli Aperture narrow, about half as wide as high. Shell slender, attenuate. Shell usually with raised spiral threads around periphery, frequently the uppermost thread has conical or triangular spines (Figs. Shell large, 80-100 mm wide. They are brown in color and have a striped pattern. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. 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. Periphery of body whorl below middle, side of whorl flattened and sloping toward apex (Fig. Apical whorls depressed; body whorl obtusely angular above and sharply carinated around funnel-shaped umbilicus. As of last . 6). Length of shell 2.0-2.5 mm (Fig. 15). Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). Ferrissia is widely distributed in the northern hemisphere. Papilla with a duct that leads to a blind caecum in nape of snail. Malacologia, 23: 81-82. 200, 206). Surface smooth, glossy, striations when present very weak. Height of shell about 23-26 mm (Figs. Inside of lip with or without a reddish callus but callus never dark red in color. Mantle cavity with gill on dorsal surface. Sides of spire straight in lateral profile. 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 They can also carry rat lungworm, which causes meningitis in humans. Operculum with about 6 slowly expanding whorls (Fig. Important diagnostic characteristics for subfamilies, genera, and species are found in the female reproductive system, the male reproductive organ (the penis), and modifications of the radular teeth. Aquatic; moves by gliding motion. 82). Apex proportionally longer, about 0.3-0.5 times length of shell. University of Florida Color often glossy reddish brown. (Anthony, 1860). This subfamily includes about fifteen North American and European genera (Thompson 1979). 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. shell with 3.9-4.2 whorls (Fig. Adult shell without lamella on interior walls of aperture. Shell transparent or opaque. 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 . (Menke, 1839). Walkerana, 1: 81-365. 169). 2018). Last few whorls in large adults scalariform. Apex of shell flat-topped, but sunken below periphery of last whorl. Marisa cornuaurietus 124). Base of shell usually without spiral band. 100). Shell conical or globose-conical; thin, translucent, occasionally opaque. (Thompson, 1968). common name: tree snails of Florida scientific name: Gastropoda: Stylommatophora: Bulimulidae Introduction - Identification - Key to the Bulimulidae of Florida - Selected References Introduction (Back to Top) Many snails are found in trees, but only a few are exclusively arboreal for most or all of their life cycle. The number of subfanilies recognized in the Hydrobiida is unsettled. Shell globose or tear-shaped. 47). (Walker, 1925). Shell discoidal, grayish-white in color; transparent when fresh. Body whorl rounded (Fig. Click on the link in the row that best matches your snail. Attains a length of 30-40 mm (Fig. Operculum corneas, without pegs on inner or outer surface. Approximately 35 species have been described. Each: $28.50 M-890 BANDED TULIP SHELL, Fasciolaria lilium A small predatory snail that feeds on clams. Nautilus, 97: 68-69. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. Aperture strongly oblique. Shell more slender, about 0.30-0.35 times as wide as high. 34, 35). 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. Slender Walker Incremental striations uniformly weak. 69). The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. Apex less than 0.4 times length of shell. Thompson, F. G. 1983. Penis with papillae along right margin (Figs. Common name: Florida applesnail Taxonomy: available through Identification: This species is the largest freshwater gastropod native to North America (Burch 1982). 162-164). Spiketopped Applesnail Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Floridobia porterae Shell unicolor brown, never mottled with reddish spots. Adults with six teeth in aperture, two on the parietal wall and four on the palatal wall. 134). The International Commision on Zoological Nomenclature has ruled that AMPULLARIIDAE is the valid name for this family of snails. Radula with bicuspid lateral teeth (Fig. 159-196). This species is a fast and voracious predator, hunting and eating other snails and slugs. Lip of adult shell usually with a thick crest externally and an internal callus. Physella gyrina aurea Medium to large freshwater snails found on all continents except South America. Nat. 115a, 115b). Base of shell regularly expanding, not funnel-shaped. Thompson, F. G. & R. Hershler. 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. Viviparus intertextus Definitive identifications may require anatomical dissections and reference to other literature. The following shells are commonly found on Florida's beaches. 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. Length of shell 3.0-4.0 mm (Fig. Shell specimens should be cleaned and air-dried. Dasyscia franzi Aphaostracon xynoelictus The sexes are separate and fertilization is internal (Andrews, 1964). Shell very thin, fragile, transparent. 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. 1980. Shell elongate conical, spire high. Vas deferens independent of blind caecum and its duct. 116a, 116b). 111). Shaggy Ghostsnail Conical with relatively obese whorls. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. Identification KeysThese files are all keys for the identification of various kinds of organisms. Shell about 0.38-0.41 times as wide as high and about 20-27 mm long. Florida. Penis simple, elongate-conical, without papillae (Fig. Olive NeriteNeritina usnea(Reding, 1798). Rhapinema dacryon Length of shell about 2.2-2.8 mm long (Fig. Body whorl strongly keeled as though pinched at the periphery (Figs. (Mihalcik & Thompson, 2002). Laevapex diaphanus Jan. 28, 2020 . Sexes not conspicuously dimorphic in size. Whorls globose, with a deeply impressed suture. Outer lip straight in lateral profiles. Shell globose with a short depressed spire; body whorl ample; umbilicus closed. The spire differs between bumpy and smooth but it is always elongated. 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). Subspecies bear the same name as the nominate subspecies, as is consistent with the standard used by the American Fisheries Society for fishes, and by other societies for other classes of animals. (Call, 1886). Apex suppressed to form a nearly flat plane with the peripheral angle (Figs.165-167). Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. 1905. 107, 108). It was well received, and it served the interests and needs of many people. Recent studies treat amnicolids as a separate families. Henscomb Hydrobe Size small, discoidal, adults seldom exceeding 4 mm in width. Laevapex fuscus Embryonic shell smooth, without spiral chords (Fig. Identify your shells using our popular photo guide to southwest Florida shells from Sanibel Island and beyond. Graphite Elimia 1, 2). 1992. Female ovoviviparous with about 15 large embryos in uterus. Peristome incomplete around aperture. Many species are secondarily modified to appear right-handed or pseudo-dextral (FIGS. Ferrissia hendersoni Sides of spire concave in outline (Fig. University of Florida scientists say the nightmarishly named "rat lungworm" has been found in multiple species of snails in the Miami area, including the invasive giant African snail. Penis with large papilla on right margin near base and one or two papillae on left margin near distal end (Figs. The genus Viviparus (Viviparidae) in North America. Little is known about these animals, and diverse opinions exist as to how many species are recognizable. Sculpture consisting of distinct spiral striations and threads superimposed on growth striations (Fig. Medium- to large-sized tropical freshwater snails. Umbilicus broad, shallow (Fig. Shell usually planispiral, but two species may have a flat-topped, elevated spire. Adults about 6-8 mm wide (Figs. 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. Micromenetus d. dilatus (Lea, 1962). 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. This causes problems in species identification and yield an undermeasure of the actual number of species that exist in nature. 68). One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. Vas deferens the only duct present in penis (Fig. It should also be remembered that many groups have not been studied sufficiently, and the reader may have material that adds to or contradicts previously recorded information. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. 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. In 2011, a population of the pests was discovered in Miami-Dade County. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. Basch (1963) recognized five valid species. Apex very short, only slightly raised above body whorl. A catalogue of the Viviparidae of North America with notes on the distribution of Viviparus georgianus Lea. 112), occurs in the Ocmulgee River system in Georgia. Whorls generally arched. Body whorl relatively rapidly expanding in diameter (Fig. Radial striations present or absent Laevapex Walker, 1903. The LIOPLACINAE is endemic and include Campeloma, Lioplax, and Tulotoma. Hershler, R. & F. G. Thompson. Whorls 3.8-4.3. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Spiral sculpture faint or absent (Figs. (Thompson, 1968). Sculpture consisting of incremental striations only. Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). Viviparus contectoides limi, new name for V. c. compactus Pils. Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. Aphaostracon rhadinus Penis with 3 papillae along right margin (Fig. Dense Hydrobe 87). It has many colorful stripes, colors, and bands on its shell which are usually orange, light orange, dark orange, or yellow. 35). Ovate Campeloma (Thompson, 1968). 159-179). Suture deeply impressed. The bio-economic importance of snails to environmental issues has become increasingly relevant because of the impact that economic development has on Florida waterways. Female shell about 3.5-4.0 mm long (Fig. They are commonly found on live aquatic plant stems, dead leaves and sticks, and on bottles and cans. 19-21). Pseudotryonia brevissimus Malacological Review, 12: 41-49. Accessory crest absent. 54). RELATED: Proof of megalodon extinction is in their teeth, scientists say. This is particularly so in the Pulmonata. 11). Shell with 5.0-6.5 whorls; about 3-5 mm long (Fig. 76). Occasional Papers on Mollusks, 2: 261-87. (Fig. NotogiIlia wetherby B. It contains about a dozen species in North America. Aphaostracon pycnus Incremental striations intensified near nucleus and umbilicus. Shell conical with strongly arched whorls and a deeply impressed suture. Males with penis at anterior right corner of mantle cavity. Inferior crest absent. The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. Shell dull. Body whorl uniformly rounded peripherally (Fig. (Thompson, 2000). (Fmr.) Being nocturnal, these pests aren't always feeding when you're scouting. Walkerana, 13: 1-108. POMATIOPSIDAE 122). Penny Sprite) Micromenetus floridensis (Baker, 1945). There is no consensus in systematic biology about how to treat these forms. 81-83). Umbilicus narrow, deep (Fig. 1991. 69, 70). 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. Occasional Papers of the Museum of Zoology, University of Michigan, (456): 1-6. 1962. (Thompson, 1968). 57). Length of shell 2.6-3.0 mm (Fig. 172). Periphery variable. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. Laevapex peninsulas 56). It is most common in Southwest Florida, and northwest Florida. Penis with two or more longitudinal crests within U-shaped superior tubercle (Fig. 32). Identifications are difficult in many instances without properly preserved specimens. Aperture elliptical and loosely attached to or slightly separated from preceding whorl; 4.5-4.9 whorls. Adequate preservation begins when the specimens are collected. Occasional Papers on Mollusks, 2: 385-412. In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. It was first identified in Florida by Dr. Harry G. Lee, who discovered the snail in Duval County in 2009. Revista de Biologia Trpical, 51 (supplement): 1-299. Columellar margin of aperture wide, rounded in front like a spindle. 48). 89-91). Malacological Review, Suppl. Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). 51, 52). Tadpole Physa Whorls rounded, not carinate above; occasionally angular below. This family includes four North American genera, Amnicola, Dasyscia, Colligyrus and Lyogyrus, and the European genus Marstoniopsis and some Asian genera. 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. Evolution has proceeded primarily through reproductive and trophic specializations. 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. Creek Siltsnail Giant African Land Snail Identification Sheet - Florida Commissioner of . Radial striations present on shell but not on apex. 136, 138). Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. Umbilicus wide (Fig. Spilochlamys conica 153). Females ovoviviparous or oviparous. This revision follows the classification proposed by Taylor. Oftentimes you'll see trails of mucous around these damaged sites. Whorls flat-sided with suture weakly impressed. Shell thick and solid; whorls weakly convex or flattened (Figs. Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. 1979a. 159). Acad. Lyogyrus retromargo Radial riblets on entire surface of shell except apex. Conical with relatively slender whorls. Minor spiral sculpture weak or absent. Kites belong to the same bird family as hawks and eagles, Accipittridae. Outer lip partially flattened in adults. 125); accessory crest absent on penis. Base of last whorl with prominent spiral ridges. Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). Somatogyrus is distributed from the Mississippi River drainage system east to Atlantic coastal streams, and south to the Gulf coastal drainage systems. Our beaches often rank at or near the top in the world. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Shell conical or cylindrical-conical in shape; spire elevated; body whorl not disproportionately voluminous; umbilicus closed or open. By Ker Than for National Geographic News. Shell with spiral chords or spirally arranged series of nodes. Nuclear whorl flattened, 0.41-0.48 mm in diameter transverse to initial suture. Shell sculptured with prominent nodes overlapping suture and forming crenulations. The giant African land snail ( Lissachatina fulica (Bowditch)) (GALS) is one of the most invasive pests on the planet, causing agricultural and environmental damage wherever it is found. 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. 81). Applesnails are tropical to subtropical organisms and cannot survive below 50F in the winter (Florida DOACS, 2002). Penis with 5-15 papillae along right margin arranged in 1-2 rows (Fig. Shell ovate or subcircular in shape, smooth or with radial sculpture localized anteriorly. (Couper, 1844). Ponderous Siltsnail Transparent white (Fig. Tryonia aequicostatus 68); lobe and flagellum with various patterns of dermal glands; central tooth of radula with basocones located on reflected margin of tooth (Fig. Penis with a single papilla along left margin (Fig. Shell with darker colored spiral chords that may be smooth or wavy. Pyrgophorus platyrachis The specie prefer quite clear water, of lakes and backwaters of streams andsprings. 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.. 170, 173). 38). Pomacea bridgesi Shell medium to large (12-75 mm). Lioplax pilsbryi choctawhatchensis Shell larger, 2.2-4.8 mm long. Vertical ribs relatively strong and more widely spaced. (Dall, 1885). 7-9). Mantle mottled with black spots and blotches. Shell usually corpulent, brown or green, generally opaque, but occasionally translucent in juveniles. Shell with 3-4 whorls. Most have monotonously simple, conical or depressed-conical shells that are nearly devoid of taxonomically useful characteristics. Umbilicus open. Color uniform olive-green, never banded (Fig. 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. Shell rounded at the periphery (Figs. Elimia floridensis 1963. 10). 12). Their color varies from red-orange, to pink, to a blue purple. Te, G.A. 24, 27). Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Burch, J. The profile of the whorls and their comparative size can also help determine the species. 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. Apical whorls bluntly rounded and not conspicuously elevated. Plane of aperture nearly vertical when viewed from the side. Many North American snail species were described near the turn of the century by Walker (1918). Shell elongate-conical. (Thompson, 1968). The best times to look for shells are after a high tide, after a storm, in the morning, and during the winter months. Shell elongate-conical; 10-40 mm long in adult specimens; apex of spire usually eroded; shell with 8-12 whorls although eroded specimens may have fewer; shell usually strongly sculptured with spiral and/or vertical ribs and threads (except in Elimia dickinsoni); central tooth of radula without basal or lateral cusps (Fig. Whorls uniformly rounded, not flattened above (Fig.144). They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy.

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