florida snail identification

Additional genera occur in the Orient, Southeast Asia, Africa, and South America. Shell with about 4.5-5.0 whorls; about 3.0-4.8 mm long (Fig. Shell grayish-white. (Fig. 33); males without copulatory structures. Penis with 2 or 3 papillae on left margin (Fig. After the shells are thoroughly rinsed, they can be air-dried in cardboard trays. The snails are tan colored, high and conical, with mature snails about to 1-inch long. Vertical ribs smooth along the periphery, strongly developed (Fig. As a result . Outer lip of aperture nearly straight in lateral profile (Figs. Radula with bicuspid lateral teeth (Fig. Ichetucknee Siltsnail Planorbis alabamensis and dilatatus in the Floridian Pliocene. 146). Spiral angulation on whorls sharp and prominent in juveniles, usually becoming convex-rounded or smooth on last whorl in adults. They are commonly found on live aquatic plant stems, dead leaves and sticks, and on bottles and cans. Aperture loosely attached to or widely separated from preceding whorl. Penis with 7-50 papillae along right margin and 1-4 papillae along distal third of left margin (Figs. Pomacea paludosa - Wikipedia 12). 34, 35). Haitia cubensis Mantle cavity with gill on dorsal surface. Shell usually squarish or rectangular in shape. common name: tree snails of Florida - University of Florida These are white, which is the more prized color in. The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. Florida is trying to eradicate the giant African land snail, again 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. Elimia floridensis ssp. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. Operculum paucispiral, with about three rapidly expanding whorls (Fig. Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands. 120). Shell with 4.4-5.0 whorls; about 3.7-5.2 mm long. It is characterized by the lobed shape and glandular patterns of the penis. (Vail, 1979). Only three widely distributed species occur in Florida. Walkerana, 13: 1-108. Wekiwa Hydrobe Mantle diffusely pigmented or unpigmented. Whorls 4.6-5.3. 140). Definitive identifications may require anatomical dissections and reference to other literature. 53). Spire depressed, much less than height of aperture, occasionally planular (Figs. Micromenetus d. dilatus Female shell about 4-6 mm long (Figs. Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. Umbilicus narrow (Figs. Last whorl distinctly shouldered. Spiral sculpture absent. Penis of males with papillae along sides (Figs. 131). Fossaria modicella Operculum loosely coiled, with 3.75 large whorls, the outer one expanding more rapidly than the others (Figs. Thick-shelled Hydrobe Generally with distinct axial and spiral striations. Length of shell up to 5 mm. Last whorl flattened above. Pilsbry, H. A. Nuclear whorl 0.29-0.33 mm in diameter. (Linnaeus, 1758). (Anthony, 1860). 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. Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. It is hoped that this manual will stimulate other biologists to contribute to our knowledge of freshwater mollusks. Shell olive-green with vertical reddish flames and spots. A synopsis of the classification of the freshwater Mollusca of North America north of Mexico and a catalogue of the more recently described species with notes. Campeloma geniculum (Conrad, 1834) is readily recognized by its obese, solid shell; it usually has a normal proportion of males in its populations, although some populations are apomictic parthenogens. (Pfeiffer, 1839). 47). Unlike other brown-tinted giant snails, this. 61). 67). (Thompson, 1968). Aphaostracon rhadinus Rails, gallinules, coots and cranes. (Mihalcik & Thompson, 2002). Channeled Applesnail Common name: Florida applesnail Taxonomy: available through Identification: This species is the largest freshwater gastropod native to North America (Burch 1982). A Guide to Florida Bird Species. Marsh Rams-horn It wasn't until 2021 the population was. Aperture comma-shaped, tightly appressed against preceding whorl. Blackwater Ancylid The Pleuroceridae of the Atlantic Coastal Plain. Melanoides tuberculata (Muller) in Florida. shell with 3.9-4.2 whorls (Fig. Amber to milky white in color (Figs. Dusky Ancylid Outer lip less sinuous. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. Shell globose or tear-shaped. On sibling species and genetic diversity in Florida Goniobasis (Gastropoda, Prosobranchia, Pleuroceridae). Ferrissia is widely distributed in the northern hemisphere. Incremental striations uniformly weak. Viviparus contectoides limi, new name for V. c. compactus Pils. Micromenetus brogniartiana The Horntail Snail ( Macrochlamys indica ): A New Invasive Pest in Florida Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. 113). Serrated Crownsnail Shell large, 4.0-4.6 mm long; thick and opaque. Aperture elliptical and loosely attached to or slightly separated from preceding whorl; 4.5-4.9 whorls. 169). Never preserve shell specimens in formalin. A preliminary revision of Florida Lioplax (Gastropoda: Viviparidae), with a description of Lioplax talquinensis n.sp. This pest remains a threat in Florida, Hawaii and the Caribbean. 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. Ancylid gastropods are small, fragile limpets found in most freshwater habitats. Wm. Revista de Biologia Trpical, 51 (supplement): 1-299. Shell ovate or subcircular in shape, smooth or with radial sculpture localized anteriorly. Sides of spire straight in lateral profile. Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. Shape highly variable, usually disc-shaped but some specimens with flat-topped raised spire. Seashell Identification | Shell ID | Identify Sanibel Shell | I Love Cone Snails - Central and South Florida Gastropod Seashell 81-83). Apex with fine radial striations (Figs. Paper fig A Florida Gulf Coast specialty shell! One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. 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. Shell conical to ovate-conical. Typically, land snails live on or near the ground, feed on decaying plant matter, and lay their eggs in the soil. Teardrop Snail Thick-lipped Rams-horn Rather stocky, adult about 15-20 mm long (Fig. 101). Apical whorls bluntly rounded and not conspicuously elevated. Base of shell with dark red spiral band. (Thompson, 1968). Viviparus intertextus Parietal margin of operculum concave (Fig. 6). This subfamily includes about fifteen North American and European genera (Thompson 1979). 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. A systematic study of the Family Physidae (Basommatophora: Pulmonata). Curator of Malacology. Haitia pomilia pomilia Identification. Shell with prominent ribs and spiral chords on all whorls. Penis with a dense pattern of superior tubercles. (Thompson & Hershler, 1991). 4). Aperture broadly elliptical. 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. This is not the first time Florida has dealt with an invasion of giant snails. Malacological Review, 24: 55-72. Lower margin of aperture not advanced beyond upper margin. Penis with a single papilla along left margin (Fig. 10-12). Shell narrow, terete or cylindric-conical with a moderately impressed suture. Sculptured with regularly spaced, fine, incremental threads and spiral striations; spiral striations evident only on base of whorls in some specimens. Floridobia vanhyningi There have been introductions of this species into Argentina, the Atlantic Islands, Australia, Chile, Haiti, Mexico, New Zealand, and . Kites belong to the same bird family as hawks and eagles, Accipittridae. 68). 2015; Jayashankar et al. Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. Conical with relatively slender whorls. Apex smooth, with no trace of radial striations (Fig. They are brown in color and have a striped pattern. 65). 149). Shell elongate conical, spire high. Snail Kite: Species Profile - National Park Service The sexes are separate and fertilization is internal (Andrews, 1964). 11). Numerous species of exotic snails are serious pests of plants and threats to public health. Occasionally it may be necessary to turn to other information sources to determine identifications with a greater degree of certainty.. Suture more deeply impressed than in 77a. The following shells are commonly found on Florida's beaches. Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. Frequently the shells of ampulariids and viviparids are very similar. Opercula of minute snails can be studied most easily by removing them from the animal and viewing them with transmitted light. Central tooth of radula with long basocones along base (Fig. (Thompson, 1968). Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Shell elongate with pointed conical spire. Penis with a few simple scattered superior tubercles on outer surface; parapical crest on a low ridge; accessory crest and inferior crest absent (Fig. 162-164). Vertical ribs strongly developed, crossed by nearly equal sized spiral threads that form low spines where they cross the ribs, adults about 20-25 mm long (Fig. 85). Average length about 5 mm (Figs. 1934. Review of the Planorbidae of Florida with notes on other members of the family. Do not use tap water since copper ions from the plumbing system may contaminate the tap water and kill the snails prematurely. It matters not that the specimens are stored in 70 percent alcohol after having been fixed in formalin. 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. 94). Average length about 4 mm (Figs. Black-crested Elimia) Elimia albanyensis (Lea, 1864). Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). 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. Prominent vertical ribs on middle and upper whorls. It is most common in Southwest Florida, and northwest Florida. Pomacea canaliculata Aperture large, oval, much more than half the length of shell. 102a, 102b). Apex in the posterior right third, domelike and evenly rounded. Campeloma parthenum (Gastropoda: Viviparidae), a new species from north Florida. With the exception of Liguus fasciatus, these snails have shells that vary in color from ivory to tan, often with brown markings.Liguus shells are brilliantly colored and are frequently marked with yellow, green, pink, and brown. University of Illinois Press, Urbana. Its brown spotted exterior provides camouflage, making it a challenge to spot. Shell light brown and frequently mottled with rust-colored spots that may form a spiral row below the suture. 75, 76). Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Most snails will have a conical shaped shell. Giant African Land Snails Cause Quarantine in Florida County - Peoplemag Browse and enjoy! 2018). Identifications are difficult in many instances without properly preserved specimens. (Couper, 1844). Newborn shells white. Melanoides tuberculata 197-209). Freshwater Snails of Florida ID Guide - Invertebrate Zoology Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. Length of shell 2.0-2.5 mm (Fig. Aperture free from, or only in slight contact with, preceding whorl. There is much disagreement as to how many species actually exist. Vas deferens the only duct present in penis (Fig. Males with penis at anterior right corner of mantle cavity. Florida Spent Over $24M Eradicating Invasive Snails That - Newsweek The reader will discover how very little we know about any genus occurring in Florida. The snails live in the bays and mudflats, but after they die their shells wash up on the beaches. Length of shell 2.0-2.4 mm (Fig. The latter genus includes a single species, Cincinnatia integra (Say, 1817). Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). Shell short and stocky. Size larger, adults 7 mm or more in width. Radula with tricuspid lateral teeth (Fig. Malacological Review, 19: 85-86. 41-43). For the purpose of completeness, the three parthenogenetic forms and C. geniculum are included in the key. Aperture narrowly in contact or free from preceding whorl. 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. Slender Walker Bulletin of the Museum of Comparative Zoology, 129: 401-61. (Clench, 1925). Vernacular names are given only for species. By Ker Than for National Geographic News. 171-173). 69). Bright pink egg masses are laid on . Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. The criterion of inbreeding for defining species cannot be applied, and other objective criteria are not yet been established. 116a, 116b). Common Shells of SW Florida and Keewaydin Island Beaches Shell without conical spines, although spiral threads may be present. Land snail | gastropod | Britannica Last few whorls in large adults scalariform. Thompson, F. G. & R. Hershler. Somatogyrus is distributed from the Mississippi River drainage system east to Atlantic coastal streams, and south to the Gulf coastal drainage systems. Rock Fossaria Hebetancylus excentricus Umbilicus broad, shallow (Fig. 140-146). Hershler, R. & F. G. Thompson. Proc. More data based on many population samples from throughout this range will be necessary before the validity of the three forms can be determined. An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. 1982. (Thompson, 1968). Aperture relatively ample (Figs. 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. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. A single species consisting of two highly variable subspecies occurs in Florida. Nautilus, 19: 34. Shell transparent or opaque. Outer lip of aperture with a thick callus on inner surface. Nautilus, 32: 71. 202, 208). Sculpture variable. Shell variable in shape. Live snails for shell studies should be preserved in 70 percent alcohol. Spiral sculpture absent. Thompson, F. G. 1983. Whorls of spire weakly scalariform, causing the suture to be deeply incised. Ovate Campeloma Proceedings of the Academy of Natural Sciences of Philadelphia, 86: 29-66. Aperture rhomboid; baso-columellar angle extended as slight tonguelike projection; basal lip broadly but shallowly indented (Fig. 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 thick and solid; whorls weakly convex or flattened (Figs. Jan. 28, 2020 . Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Only genera that enter fresh water are treated. Interior of aperture livid white. The current status of these introductions is not known. . Shell larger, 2.2-4.8 mm long. Florida's Department of Agriculture and Consumer Services said that a Pasco County master gardener reported seeing a giant African land snail in the New Port Richey area on June 23. (Say, 1825). The Florida Department of Agriculture and Consumer . 1992. 127); superior tubercles on penis arranged in oblique longitudinal series. Penis filament black. PDF Giant African Land Snail Identification Sheet - Florida Commissioner of 200, 206). 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 The Florida Department . Shell coiled to the left, with the aperture on the left side (Figs.147-158). Malacological Review, 12: 41-49. Physella gyrina aurea Outer lip straight in lateral profiles. Shell obese and ponderous. USDA APHIS | Giant African Snail Floridobia petrifons Apex very obtuse, almost in the middle of the shell. Adult size small, about 12-16 mm long (Fig. Quarterly Journal of the Florida Acaemy of Sciences, 32: 241-65. Choctawhatchee Elimia 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. Body whorl strongly keeled as though pinched at the periphery (Figs. Elimia floridensis Te, G.A. Clench, W.J. Penis with different arrangement of papillae than above. Prominent minor spiral sculpture along periphery. It should be remembered that it is only a key which emphasizes shell characters. 16, 22-28). Marisa cornuaurietus In 2011, a population of the pests was discovered in Miami-Dade County. Genera that serve as intermediate hosts for schistosomatid trematodes have been studied extensively. Pyrgophorus platyrachis A Guide to Florida Bird Species | VISIT FLORIDA Shell sculptured with fine spiral striations, and in some cases curved axial ribs. A giant African land snail, photographed at a lab in 2014. Body whorl uniformly rounded peripherally (Fig. i-xxxvi, 1-530 pls. Identify your shells using our popular photo guide to southwest Florida shells from Sanibel Island and beyond. Marsh Sprite Parasite colonizing Florida snails could pose health risk - UPI Shell usually elevated, but variable. 69, 70). Apex of shell flat, though it may be raised above the periphery of the last whorl (Figs. 87). Florida Museum of Natural History Recent studies treat amnicolids as a separate families. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. They achieve their greatest diversity in genera and species in temperate North America. Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. Suwannee Hydrobe Officials in Florida are again battling a highly invasive, extraordinarily destructive giant snail species that also happens to be capable of spreading parasitic worms that invade human brains . Peninsula Ancylid 1-69. 142). 40). 95). Aperture without serrate denticles on parietal wall. Campeloma parthenum 51, 52). 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. Fossaria cubensis 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. State officials said the last live snail found in Florida before the Pasco . Mantle richly marked with reddish-brown blotches and spots. 75). (Say, 1829). Amnicola dalli. (Thompson, 1968). Shell usually opaque in adults, with a dark red callus inside the lip (Fig. Rhapinema dacryon (Clench & Turner, 1956). 16, 25, 28). Attains a length of about 30-36 mm (Figs. Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). About 4.2-4.6 weakly arched whorls with a weakly impressed suture. Length of shell 3.0-4.0 mm (Fig. Body whorl compressed (Fig. It was well received, and it served the interests and needs of many people. Adult shells about 40 70 mm high (Fig. Shell usually planispiral, but two species may have a flat-topped, elevated spire. (This character separates only the genera under consideration; genera from other areas of the world do not conform to this distinction.) Aperture relatively shorter, about half or less the length of the shell. Spire shorter, conical, 0.7-1.3 times length of aperture, nearly straight-sided in outline, suture of whorls weakly or moderately impressed. It was first identified in Florida by Dr. Harry G. Lee, who discovered the snail in Duval County in 2009. Invasive snail species found in Florida, University of Florida IFAS Florida Applesnail (Lea, 1842). Floridobia porterae Vertical ribs relatively strong and more widely spaced. Vas deferens independent of blind caecum and its duct. 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. 2002. Shell conical or globose-conical; thin, translucent, occasionally opaque. Outer lip nearly straight and parallel to axis of shell in adults (Fig. All snails in the subfamily Achatininae, including the giant African snail (GAS) (Lissachatina fulica), are regulated plant pests. The snail can wreak havoc on agriculture and carry a parasite that causes meningitis in humans.. Clench, W.J., & R. D. Turner. Nat. Elimia dickinsoni (Call, 1886). 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. Umbilicus open. Tadpole Physa Seashell Photo ID, Florida East Coast - Seashells by Millhill 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 Two new species of hydrobiid snails from Florida and Georgia, and a discussion of the biogeography of south Georgia streams. 169, 172). It is represented in North America by Viviparus. 1905. Mihalcik, E. L. & F. G. Thompson. It could take years to fully rid the state of the species, officials say. Shell elongate-conical. 136, 138). Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. 124). Penis with 4-6 papillae along right margin (Fig. 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. . (Say, 1829). 199). Female ovoviviparous with about 15 large embryos in uterus. It is important to save some specimens for anatomical studies. Invasive snails that already cost FL $24 million are - Florida Phoenix (Thompson, 2000). 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. Crystal Siltsnail (Vanatta, 1934). The radula is then thoroughly rinsed in distilled water, stained, and mounted on a microscope slide. 66). Aperture narrow, about half as wide as high. Elimia athearni This revision follows the classification proposed by Taylor. Identification of Marine Snails reefdup Identification, Snails July 3, 2020 Cerith, Collonista, Collumbellid, Conch, Limpet, Nassarius, Nerite, Ninja, Pyramidellid, Snail, Stomatella, Turbo, Vermetid 3 Comments Marine snails come in all shapes, sizes, colors, and function, so proper identification is crucial! (Mihalcik & Thompson, 2002). Adults about 2-3 mm long (Figs. 203, 209). Apex about 0.4-0.5 times length of shell. According to the Florida Department of Agriculture and Consumer Services (FDACS), the giant African snail, commonly referred to as GALS by invasive-species aficionados, is native to East Africa . The living snail is bright orange. Amazing snails - Sea snails of Florida - Google Penis simple, elongate-conical, without papillae (Fig. Adults 9-15 mm wide (Figs. Body whorl inflated. Apical whorls pointed and raised, but not scalariform. Columellar margin of aperture very thick but not reflected over umbilical area (Fig.103). Taylor recognizes twenty-three genera based on the soft anatomy. Sculpture consisting of fine incremental threads, and spiral striations that may become obsolete at maturity. Waccasassa Elimia 81). 37), which is important for generic and specific diagnosis. Penis with papillae along right margin (Figs. (Aguayo, 1935). 72-74). From a distance, the snail kite generally resembles a medium-sized hawk with broad wings. The species of snail was present in Florida in the 1960s and 1970s before being eradicated in 1975, the FDACS said. Their color varies from red-orange, to pink, to a blue purple. Miscellaneous Publication of the Museum of Zoology, University of Michigan, 6: 1-213. Aphaostracon pycnus Swallow-tailed kites are spring and summer residents; snail kites are specially adapted to feed on apple snails in Florida freshwater wetlands year 'round. This genus of minute freshwater snails is endemic to the Florida peninsula. (Conrad, 1834). Littoridinops tenuipes Newborn shells brown. 105, 106). Shell conical; thin and transparent; 4.0-4.5 strongly arched whorls. Hello Bruce. Click on images to enlarge them. 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. Aphaostracon hypohyalina 39). Periphery of last whorl bluntly angular, lying below plane of apex (Figs. Clench, W.J., & S. L. H. Fuller. This snail was twice established in southeastern Florida and was successfully eradicated both times. Evolution has occurred through reproductive specialization, with each genus and most species having distinctive patterns of dermal glands. Shell nearly smooth, sculptured with irregularly spaced incremental striations (Figs. Sculpture consisting of incremental striations only. Shell cylindric-conical, solid opaque; 4.5-4.9 moderately rounded whorls. Thompson, F.G. 1979. 173). Spire usually about equal to or greater than height of aperture (Figs. (Fmr.) Lobe and flagellum with various patterns of dermal glands (Fig. 159-161). Elimia doolyensis 23, 26). Laevapex peninsulas (Say, 1817).

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florida snail identification