58). (Jay, 1839). The shell are secondarily useful for identification, but only when supplemented with anatomical information. Curator of Malacology. (Say, 1825). Umbilicus open, although very narrow in some species; occasionally closed. 137, 139). 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. Sides of spire slightly convex. 32). 143). Includes the limpkin, a Sunshine State specialty. (Thompson, 1969). 153). Thicker leaves may have damage on only one side. Newborn shells white. Squaremouth Amnicola Shell generally elliptical in outline. Outer lip nearly straight and parallel to axis of shell in adults (Fig. 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. Adults about 6-8 mm wide (Figs. 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. Excentric Ancylid (Thompson, 1968). Basch (1963) recognized five valid species. Body whorl relatively narrow, not conspicuously enlarging near aperture (Fig. Green Cove Springsnail (Thompson, 1968). Haitia bermudezi Ampullariids have been referred to as PILIDAE in earlier editions of this manual. Surface smooth, glossy, striations when present very weak. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. 24, 27). 118). Spiral angulation on last whorl obsolete or bluntly rounded and forming a shallow sulcus below shoulder of last whorl. (Thompson, 1968). Proc. Applesnails are tropical to subtropical organisms and cannot survive below 50F in the winter (Florida DOACS, 2002). 34); penis frlattened, blade-like (Fig. Shell with 3-4 whorls. Most have monotonously simple, conical or depressed-conical shells that are nearly devoid of taxonomically useful characteristics. Thompson, F. G. & R. Hershler. Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. Fossaria cubensis 1918. Pseudotryonia brevissimus Apex of shell slightly convex in outline. Malacological Review, 24: 55-72. 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 . Shell nearly smooth, sculptured with irregular growth striations. Browse and enjoy! Six species are known to occur in Florida. Fossaria modicella However, this appears to be an over reduction, and several southern species were synonymized that appear worthy of recognition. Specimens then are placed in a fixative such as 10 percent formalin or Bouins Solution. Moderately large, thick-shelled operculate snails. In previous editions of the manual the Florida species were placed in the genus Physella. Shell minute, 2.4-2.7 mm long; adults with 3.9-4.2 whorls; spire short, 0.8- 1.1 times height of aperture (Fig. Their color varies from red-orange, to pink, to a blue purple. Occasional Papers of the Museum of Zoology, University of Michigan, (456): 1-6. Terminal lobe of penis slender. Elimia floridensis ssp. Freshwater snails (Mollusca: Gastropoda) of North America. The author has attempted to simplify the key to include the minimum anatomical data needed for accurate identification. Shell smaller, reaching a maximum diameter of 13 mm. (Lea, 1962). Attains a length of 30-40 mm (Fig. 48). In previous editions of the manual species of Floridobia were placed in the genus Cincinnatia. 160, 163, 166). Aperture usually open; occasionally with a horizontal, shelf-like septum closing posterior part (Fig. Marginal teeth of radula trapezoidal with well-differentiated cusps. 115, 116). (Thompson, 1968). Shell elongate-conical. Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. 1991. Vail, V. A. (Thompson, 2000). Length of shell 3.0-4.0 mm (Fig. Malacologia, 23: 81-82. Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. 89-91). Lioplax pilsbryi choctawhatchensis Quilted Melania Aperture without serrate denticles on parietal wall. Operculum loosely coiled, with 3.75 large whorls, the outer one expanding more rapidly than the others (Figs. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. 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. Base of shell with dark red spiral band. Umbilicus closed or narrowly perforate. There is much disagreement as to how many species actually exist. Sculpture variable. Pomacea bridgesi 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. Apex suppressed to form a nearly flat plane with the peripheral angle (Figs.165-167). 16, 29). Apex flat with narrow threadlike keel. Conical with relatively slender whorls. 83). Video. Occasionally it may be necessary to turn to other information sources to determine identifications with a greater degree of certainty.. Blackwater Ancylid Shell sculptured with fine spiral striations, and in some cases curved axial ribs. Penis with papillae along right margin (Figs. Thick-shelled Hydrobe 145). 112), occurs in the Ocmulgee River system in Georgia. Two-ridged Rams-horn Low-dome Physa Hatia pomilia hendersoni Plane of aperture nearly vertical when viewed from the side. 126); accessory crest present on penis. Shell sculpture with incremental striations only. Shell thick and solid; whorls weakly convex or flattened (Figs. It has many colorful stripes, colors, and bands on its shell which are usually orange, light orange, dark orange, or yellow. Conical Siltsnail The most recent sighting of a giant African land snail took place in 2017, meaning the species can now be considered eradicated in the state of Florida. 140-146). Introduction to the Physidae (Gastropoda, Hydophila): biogeograhy, classification, morphology. Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). Body whorl inflated. Other species deposit eggs during the period of March through May, at which time the adults die and immature forms dominate the population through August or September. This is essential in the case of the Hydrobiidae. Physid species have similar and superficially featureless, variable shells, and the shell is imprecise for identifying most genera and many species. Nat. Do not use tap water since copper ions from the plumbing system may contaminate the tap water and kill the snails prematurely. 61). Interior of aperture livid white. A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia, Hydrobiidae). Base of shell usually without spiral band. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). 67). Helisoma anceps anceps In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. Planorbis alabamensis and dilatatus in the Floridian Pliocene. 98). Sculpture consisting of axial striations only (Fig.147). Body whorl compressed (Fig. 65). 44). Eight species have been proposed. Adults about 5 mm long (Figs. Choctaw Lioplax 120). Aperture broadly elliptical. Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. Malacological Review, Suppl. Occasional Papers on Mollusks, 2: 385-412. Operculum with concentric growth rings around nucleus (Figs. (Vail, 1979). Clench, W.J., & R. D. Turner. 159-179). Seashell Identification Identify your Florida Gulf Coast seashells! Pomacea paludosa Apex with fine radial striations (Figs. The radula can be studied by dissecting out the buccal mass and macerating it in clorox or sodium hydroxide. Shell ovate, smooth or with fine raised riblets; riblets usually on the anterior slope when present. Amphibious; moves by step-like mode of progression (Fig. The beaches in Florida are perfect for shelling and beach combing. The following shells are commonly found on Florida's beaches. 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. Other families occur elsewhere in North America and in other continents. Goblin Elimia) Elimia vanhyningiana (Goodrich, 1921). The horntail . One to several dark growth-rest varixes usually present on last whorl. The aquatic snail fauna of the southeastern United States has long been recognized for its richness and diversity. They are most common on tropical islands but occur also in cold regions, where they hibernate. 135). 141). (Gould, 1841). File Campeloma (Thompson, 1968). Shell slender, attenuate. (Thompson, 1968). Thompson, F. G. 1983. 100). Littoridinops palustris Campeloma floridense Shell planispiral, adults large, 35-50 mm (Figs. Only genera that enter fresh water are treated. 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 transparent or translucent. There have been introductions of this species into Argentina, the Atlantic Islands, Australia, Chile, Haiti, Mexico, New Zealand, and . They are variable in their shell characteristics, and some samples may be difficult to identify. Penis with 7-50 papillae along right margin and 1-4 papillae along distal third of left margin (Figs. Taylor, D. W. 2003. The number of subfanilies recognized in the Hydrobiida is unsettled. 119). Vertical ribs reduced in size, but with bold spines at the periphery; spiral threads above periphery relatively weak; adults up to 35 mm long (Fig. Florida authorities believe that the snail, native to eastern Africa, was reintroduced to the state when someone brought it home as a pet. Red-rimmed Melania Floridobia helicogyra Frequently the shells of ampulariids and viviparids are very similar. They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy. 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. 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 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. Shell with darker colored spiral chords that may be smooth or wavy. Length of shell 2.1-2.8 mm (Fig. Sculpture consisting of distinct spiral striations and threads superimposed on growth striations (Fig. 7 new spider species . Adults about 2-3 mm long (Figs. Snails in wild populations range in shell color from yellow to brownish-black, and may contain stripes or dimpling. Walkerana, 13: 1-108. University of Florida Spire long, 1.3-1.7 times length of aperture, convex in outline; shell relatively large and nearly cylindrical; 4.0-4.9 mm long; whorls 5.0-5.7, strongly rounded with a deeply impressed suture (Fig. 1965. Thin and translucent or transparent. Aperture ovate; baso-columellar angle not extended; basal lip not indented. Goldenhorn Marisa (Morelet, 1851). Florida's . 158). Aperture loosely attached to or widely separated from preceding whorl. Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. Aperture elliptical in shape; spire slenderer and slightly convex in outline; suture moderately impressed suture; parapical crest reduced in size. (Walker, 1925). Rasp Elimia Ichetucknee Siltsnail Size small I I to medium, 8-12 mm in length. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. Aperture terminating below periphery of body whorl. Umbilical perforation wide, 1/6 to 1/8 diameter of shell. Radial riblets on entire surface of shell except apex. The species made a return in 2011 and eradication efforts took another ten years. The Pleuroceridae of the Atlantic Coastal Plain. Earlier whorls of adult shell with vertical ribs and spiral chords. Purple-throated Campeloma Baker, F.C. Elimia dickinsoni 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. Only three widely distributed species occur in Florida. Shell without conical spines, although spiral threads may be present. 7-9). 129). Apex distinctly convex in outline. The family attains its greatest diversity in Southeast Asia. Haitia pomilia pomilia The Florida Department of Agriculture and Consumer Services has mapped out a . 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. This subfamily includes about fifteen North American and European genera (Thompson 1979). (Thompson, 1968). 173). Micromenetus brogniartiana Medium- to large-sized tropical freshwater snails. Last whorl not shouldered (Figs.155, 156). Melanoides turricula Haitia cubensis Penis with invaginated cave-like pit within U-shaped superior tubercles. It is important to save some specimens for anatomical studies. Penis with 17-50 papillae along right margin arranged in 3-5 rows (Fig. 204-207), often eroded in older specimens. 149). It is characterized by the lobed shape and glandular patterns of the penis. 39). Penis with 3 I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. Philadelphia, 134: 143-77. Shell conical to elongate-conical; whorls 4.0-4.5 with a deeply impressed suture. Adams, 1841). It is presented in the form of key supplements with illustrations and habitat information to facilitate identifications. A review of the recent freshwater limpet snails of North America. 11). Knobby Elimia An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. Thiarids are ecologically significant because they tend to replace native snails where they are introduced and because of their abundance. Shell obese and ponderous. Three occur in Florida. It was well received, and it served the interests and needs of many people. Lip of adult shell usually with a thick crest externally and an internal callus. Graphite Elimia 72-74). (Thompson & Hershler, 1991). Height of shell about 14-16 mm; width, 10-12 mm (Figs. Is non-native to the area, in our case northwest Florida Operculum corneas, without pegs on inner or outer surface. 1980. It occurs in India, Sri Lanka, Bangladesh, Nepal, Pakistan and Brazil (Figure 1) (Raut and Ghose 1984; Biswas et al. Opercula should be glued to cotton plugs and replaced within the aperture. 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). Opercula of minute snails can be studied most easily by removing them from the animal and viewing them with transmitted light. (Pilsbry, 1890). 7-9). Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. Throughout the 19th and 20th Centuries malacologists made frequent field trips to explore river systems that were poorly known, and to revisit others that were renown for their rich and unique assemblages of species. Penis of males with papillae along sides (Figs. Aphaostracon pachynotus Shell distinctly carinated above and below; both apex and base funnel-shaped. 94). Olive NeriteNeritina usnea(Reding, 1798). 162). Penis as illustrated (Fig. (Lea, 1834). Spire usually about equal to or greater than height of aperture (Figs. (Pfeiffer, 1839). 180-193). Spilochlamys gravis One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. Spire short and compact, about 0.5-0.7 times height of aperture in mature specimens, proportionally longer in juveniles (Fig. Floridobia petrifons Few of the North American species have been studied to the extent that their taxonomy, geographic distributions, life histories, and ecology are documented. (Pfeiffer, 1839). The snail can wreak havoc on agriculture and carry a parasite that causes meningitis in humans.. Most inhabit fresh water, but some also occur in brackish water. Shell elongate conical, spire high. It could take years to fully rid the state of the species, officials say. Rather stocky, adult about 15-20 mm long (Fig. (Vanatta, 1935). Vertical ribs relatively strong and more widely spaced. Shell usually opaque in adults, with a dark red callus inside the lip (Fig. Viviparus contectoides limi, new name for V. c. compactus Pils. The bio-economic importance of snails to environmental issues has become increasingly relevant because of the impact that economic development has on Florida waterways. (Thompson, 1968). Similarities in appearance among the exotic species can make identification very difficult. 105, 106). Spiral or costate sculpture usually present. Shell relatively thick (Figs. Suture simple, not crenulated. 3:51. The genus is difficult to diagnose by shell characters because the three species are very dissimilar. Clifton Spring Hydrobe Columellart margin of aperture not flat-faced; apex of shell usually entire; penis with large terminal lobe on left side and small appendage-like flagellum on right margin (Fig. Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. Texture dull. 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.. Thompson, F.G. 1968. Approximately 35 species have been described. Ferrissia hendersoni It contains about a dozen species in North America. Adult size small, about 12-16 mm long (Fig. Shell narrow, terete or cylindric-conical with a moderately impressed suture. 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. Prepared by Fred G. Thompson, Fmr. 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. This causes problems in species identification and yield an undermeasure of the actual number of species that exist in nature. Apex of shell flat, though it may be raised above the periphery of the last whorl (Figs. 75). 92). Shell light brown and frequently mottled with rust-colored spots that may form a spiral row below the suture. 68). 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. Shell dull. (Clench, 1925). Length of shell up to 5 mm. Umbilicus variable. (Frauenfeld, 1863). 123). Laevapex is a North American genus. (Thompson, 2000). Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. A catalogue of the Viviparidae of North America with notes on the distribution of Viviparus georgianus Lea. Penis with two or more longitudinal crests within U-shaped superior tubercle (Fig. 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 . 86). 131). The current status of these introductions is not known. (Lea, 1842). Elimia doolyensis Shell subcircular, smooth, often encrusted with dark material. Planorbella duryi Sides of spire straight in lateral profile. A giant African snail sighting in Florida enacted a quarantine over parasite concerns. Pomacea canaliculata (Lamarck, 1822) (Gastropoda, Prosobranchia, Pilidae): A freshwater snail introduced into Florida, U. S. A. Malacological Review, 30:91. Whorls shouldered above near suture (Fig. Shell more slender, about 0.30-0.35 times as wide as high. 5: 1-140. Females ovoviviparous or oviparous. Apical whorls pointed and raised, but not scalariform. 124). (Lamark, 1822). Pyrgophorus platyrachis 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. Adult shell without lamella on interior walls of aperture. 70, 71). Shell keeled or strongly angular at the periphery (Figs. 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. 75, 76). Crystal Siltsnail 76). 41-43). (C.B. 34, 35). 151, 152). This pest remains a threat in Florida, Hawaii and the Caribbean. Stately Elimia 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. Suture more deeply impressed than in 77a. Umbilicus widely perforate, accentuated by a strong circum-umbilical keel. Marsh Rams-horn The fixative may damage the shell, but that is unimportant for anatomical purposes. The snails are tan colored, high and conical, with mature snails about to 1-inch long. Shell conical, olivaceous in color. 1963. (Pilsbry, 1889). From a distance, the snail kite generally resembles a medium-sized hawk with broad wings. Umbilicus open. Bulletin of the Museum of Comparative Zoology, 129: 401-61. Being nocturnal, these pests aren't always feeding when you're scouting. (Thompson, 1968). Shell coiled to the right, with the aperture on the right side (Figs. Lioplax pilsbryi pilsbryi Two new species of hydrobiid snails from Florida and Georgia, and a discussion of the biogeography of south Georgia streams. 15, 18). Amnicola rhombostoma Additional surveys found four different populations all associated with the CSX railways. The species was eradicated again in 2021 after being detected in 2011 in Miami-Dade County, according to FDACS. 1934. Review of the Planorbidae of Florida with notes on other members of the family. 127); superior tubercles on penis arranged in oblique longitudinal series. Our beaches often rank at or near the top in the world. Shell large, 4.0-4.6 mm long; thick and opaque. Identification Damage from snail and slug pests appears as oblong, irregular holes at both the margin and the center of leaves and flowers. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). Cockscomb Hydrobe Female ovoviviparous with about 50 embryos in uterus; embryos clearly evident through clean shells. 2002. It was first identified in Florida by Dr. Harry G. Lee, who discovered the snail in Duval County in 2009. 199). 171-173). Physella gyrina aurea Each snail has both female and male reproductive organs, so they can reproduce rapidly. Last whorl distinctly shouldered. Apex slightly behind and slightly to the right of midline. Pomatiopsis lapidaria Size: 2-4 cm. The best times to look for shells are after a high tide, after a storm, in the morning, and during the winter months. Aphaostracon pycnus Arboreal forms, such as Liguus of Florida and Cuba, tend to be brightly coloured; terrestrial forms usually are drab. 62). 2018). Penis with a few simple scattered superior tubercles on outer surface; parapical crest on a low ridge; accessory crest and inferior crest absent (Fig. Formalin will corrode the shell and thereby eliminate color, delicate sculpture, and the periostracum the thin skin coating present on most shells. Floridobia fraterna 2015; Jayashankar et al. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Many have been synonymized, some undeservingly so. Aperture narrowly in contact or free from preceding whorl. (Dall, 1885). Planorbula armigera wheatleyi 170, 173). Published April 18, 2013 Florida Applesnail Shell more slender and attenuate; spire more elongate in adults, about 0.7- 1.0 times height of aperture. Outer lip continuously rounded (Figs. Land Snail (Bulimulus sporadicus)A large group of Bulimulus sporadicus found in the Florida panhandle. Inside of lip with or without a reddish callus but callus never dark red in color. Burch, J.B. 1989. GAINESVILLE, Fla., Feb. 26 (UPI) -- University of Florida researchers have confirmed the presence of a deadly parasite in three non-native species of snails that have colonized South Florida. Aperture elliptical or trapezoidal in shape. Radial striations present on shell but not on apex. 130). The bodies of large snails, such as viviparids and pilids, should be pulled from the shell. (Call, 1886). 121). 56). Length of shell 2.0-2.4 mm (Fig. An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. Floridobia ponderosa Banded Mysterysnail Overshadowing this genetic divergence are frequent examples of convergent evolution of similar adult shell characters among distantly related species. Elimia athearni Umbilicus broad, shallow (Fig. 89, 90). Umbilicus wide (Fig. Shell unicolor, never banded. 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 . 84). Shell sculptured with prominent nodes overlapping suture and forming crenulations. Aperture broadly ovate. Length of shell 2.2-2.6 mm (Fig. 85). The shells should be rinsed frequently in tap water during the cleaning process to prevent etching by the acid. Whorls 4.6-5.3. They complete their life cycles in one year. Parietal margin of operculum slightly convex in outline (Fig. Nucleus of operculum spiral and then surrounded by concentric growth rings (Fig. 12). Apical whorls depressed; body whorl obtusely angular above and sharply carinated around funnel-shaped umbilicus. Rhapinema dacryon Adult large, about 23-27 mm long (Figs. 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. (Couper, 1844). Fine vertical ribs present on uppermost whorls.
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