Six species are known to occur in Florida. 159-161). This causes problems in species identification and yield an undermeasure of the actual number of species that exist in nature. (Haldeman, 1841). (Pfeiffer, 1839). (Conrad, 1834). Spiral or costate sculpture usually present. Last whorl of adult shell smooth or with growth striations, but not with ribs and spiral chords. Penis with a dense pattern of superior tubercles. 3:51. The planorbid fauna of the southeastern states is particularly poorly known. 116a, 116b). 1980. Slackwater Elimia 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. (Thompson, 1968). Malacological Review, 24: 55-72. The family contains many genera and numerous species in South America, Central America, Mexico, Africa, and Southeast Asia. Columellar margin of aperture wide, flat-faced; apex of spire usually erroded; apical whorls, when present, with minute spiral striations; central tooth of radula with basocones located on ridged surface of tooth (Fig. It was first identified in Florida by Dr. Harry G. Lee, who discovered the snail in Duval County in 2009. Freemouth Hydrobe B. Blackwater Ancylid Shell nearly smooth, sculptured with irregularly spaced incremental striations (Figs. File Campeloma Littoridinops tenuipes In some genera, eggs are deposited above the water in dry clusters on stems, trees, walls, etc. The manual treats only those genera that occur in freshwater. 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. 70, 71). Aperture enlarged (dilated). 128). Whorls of spire less rounded. Conical with relatively slender whorls. Shell elliptical in shape. Penis with 7-50 papillae along right margin and 1-4 papillae along distal third of left margin (Figs. Thompson, F. G. & R. Hershler. Penis with a few simple scattered superior tubercles on outer surface; parapical crest on a low ridge; accessory crest and inferior crest absent (Fig. (Clench & Turner, 1956). Rotund Mysterysnail Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). Florida Press, Gainesville: i-xv, 1-68; pls. 125); accessory crest absent on penis. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Two-ridged Rams-horn 89-91). Embryonic shell smooth, without spiral chords (Fig. The bulimulids of Florida have ovate-conical or bulimoid shells that at maturity range in size from 15 mm to 70 mm. Waccasassa Elimia Ovate Campeloma 67). Color of fresh shell never milky white. Others were new taxa not found in earlier surveys. Malacological Review, Suppl. Marisa cornuaurietus (Thompson, 2000). The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. (Clench, 1925). Shell elongate. Outer lip less sinuous. Quilted Melania Penis with large a terminal lobe on the left side and a smaller appendix-like flagellum on the right side. Nat. Length of shell 2.0-2.4 mm (Fig. i-xxxvi, 1-530 pls. Shell smaller, generally less than 12 mm long. In Pasco County Florida, a quarantine order was issued for people after the re-discovery of the giant African land snail, an invasive species that can harm to humans, structures, and wildlife. Florida's . Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. Female oviparous, never with embryos in uterus. Axial striations distinct (Fig. Shell translucent. They are variable in their shell characteristics, and some samples may be difficult to identify. 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 Adults with six teeth in aperture, two on the parietal wall and four on the palatal wall. Shell small, about 3.0-3.5 mm long; adult with 4.4-4.8 whorl; lower corner of aperture tending to be angulate with fluted channel (Fig. Length of shell 2.0-2.5 mm (Fig. For the purpose of completeness, the three parthenogenetic forms and C. geniculum are included in the key. 68); lobe and flagellum with various patterns of dermal glands; central tooth of radula with basocones located on reflected margin of tooth (Fig. Goodrich, C. 1942. (Lea, 1858). Base of shell regularly expanding, not funnel-shaped. The molluscan family Planorbidae. Aperture elliptical in shape; spire slenderer and slightly convex in outline; suture moderately impressed suture; parapical crest reduced in size. Campeloma parthenum 200, 206). Thompson, F. G. 1983. Peninsula Ancylid This species is a fast and voracious predator, hunting and eating other snails and slugs. 1963. Lioplax pilsbryi choctawhatchensis Shell larger, reaching a maximum diameter of 18 mm. Shell slender, attenuate. The genus is found along the east coast of North America from Maryland south to Tabasco, Mexico. Radula with tricuspid lateral teeth (Fig. Live field samples should be divided into two groups, one to be preserved for shells, the other to be preserved for anatomical specimens. Generally with distinct axial and spiral striations. The species are highly variable, and there is no consensus regarding the number of valid species. 89, 90). 170, 173). 12). Viviparus georgianus Floridobia leptospira (Thompson, 1968). Floridobia vanhyningi Curator of Malacology Apex slightly behind and slightly to the right of midline. Spire shorter, conical, 0.7-1.3 times length of aperture, nearly straight-sided in outline, suture of whorls weakly or moderately impressed. Hydrobiids are small- to medium-sized operculate snails that live primarily in brackish and fresh water. 37), which is important for generic and specific diagnosis. (Vanatta, 1934). 98). Basch, P.F. Basal lip of peristome deeply receded. Female shell about 4-6 mm long (Figs. 46). Moderately large, thick-shelled operculate snails. (Goodrich, 1924). Three new freshwater snails of the genus Cincinnatia from peninsular Florida. Low-dome Physa Thompson, F. G. & R. Hershler. Whorls 4.6-5.3. Being nocturnal, these pests aren't always feeding when you're scouting. Amnicola rhombostoma Sculpture above periphery of whorls consisting of sharp spiral chords and distinct vertical ribs; shell attenuate. 89). Spire raised and flat-topped. Eight species have been proposed. Walker, B. Tarebia granifera Shell usually small to medium (2-25 mm). 1934. Review of the Planorbidae of Florida with notes on other members of the family. Slough Hydrobe The genus Viviparus (Viviparidae) in North America. Penis as illustrated (Fig. Shell medium to large (12-75 mm). Quarterly Journal of the Florida Acaemy of Sciences, 32: 241-65. (Fig. 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. The aquatic snail fauna of the southeastern United States has long been recognized for its richness and diversity. Two occur in Florida. (Reeve, 1856). Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. . (Vail, 1979). Shell olive-green with vertical reddish flames and spots. (Pilsbry and Beacher, 1892). Sculpture above periphery of whorls consisting of nodes arranged in vertical and spiral rows. 84). 17, 29-32), shell usually banded in Florida forms. Shell of various shapes and sculpture. The sexes are separate and fertilization is internal (Andrews, 1964). Whorls of spire weakly scalariform, causing the suture to be deeply incised. Penis with 2 or 3 papillae on left margin (Fig. 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. The shell characters given above for separating the families apply only to Florida species. Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda). 60). Shell conical or cylindric-conical; light to dark brown. Body whorl compressed (Fig. Is non-native to the area, in our case northwest Florida The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. 172). Adult shell about 4-5 mm high; umbilicus wide; columellar margin of the aperture concave in outline (Fig. Aquatic; moves by gliding motion. 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. 5: 1-140. By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Fighting a new infestation of an invasive, crop-damaging snail, Florida agriculture officials on Thursday said they have collected 1,000 of the creatures in just over a week in Pasco County, where they were recently discovered following two years in abeyance. Suture weakly impressed. Outer lip partially flattened in adults. Our beaches often rank at or near the top in the world. Sexes not conspicuously dimorphic in size. Outer lip nearly straight and parallel to axis of shell in adults (Fig. Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Types of Shells In Florida: Seashell Identification Guide It lurks nearly a foot beneath the dunes of Sanibel Island. There were no references to cover the entire state. Green Cove Springsnail Lymnaeids are a nearly cosmopolitan family of freshwater snails. Viviparus contectoides limi, new name for V. c. compactus Pils. Planorbis alabamensis and dilatatus in the Floridian Pliocene. 44). Adult shell without lamella on interior walls of aperture. 34); penis frlattened, blade-like (Fig. Apical whorls pointed and raised, but not scalariform. Shell conical to ovate-conical. Apical whorls bluntly rounded and not conspicuously elevated. (Lea, 1838). Central tooth of radula with basocones located on fore or lateral wing of tooth (Figs. Shell large, 4.0-4.6 mm long; thick and opaque. Choctawhatchee Elimia 14), was introduced into a fishpond in St. Petersburg about 1921 and into lakes in Orlando about 1940. Papilla with a duct that leads to a blind caecum in nape of snail. Micromenetus dilatatus avus (Pilsbry, 1905). Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). Whorls globose, with a deeply impressed suture. The VIVIPARINAE is widely distributed throughout Europe, Asia and eastern North America. The horntail snail belongs to the genus Macrochlamys (family Ariophantidae), which has over a hundred described species distributed from South to Southeast Asia and southern China (Pholyotha et al. The fixative may damage the shell, but that is unimportant for anatomical purposes. The Snail Kite uses its slender, curved bill to extract its primary prey, the apple snail, from its shell. 24, 27). 140-146). The genus is difficult to diagnose by shell characters because the three species are very dissimilar. An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. It is presented in the form of key supplements with illustrations and habitat information to facilitate identifications. Apex distinctly convex in outline. They complete their life cycles in one year. Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. MIAMI-DADE, Fla. As if 2020 did not have enough surprises and curveballs, an invasive snail located in the U.S. for the first time was discovered in-- you guessed it, Florida. Native and Invasive Land Snails Hawaiian Snails ( Partulina virgulata) From Molokai Island, Hawaii, 1900s-1960s Giant African Snails ( Lissachatina fulica) From Mariana Islands, North Pacific Ocean, 1950 Rosy Wolf Snail ( Euglandina rosea) From Gulf Co., Florida, 1983 Exhibit Area On the Brink Theme Warning Story Tags: Brink Invasive Invertebrates On June 24th the Florida Department of Agriculture and Consumer Services (FDACS) created a quarantine surrounding the town of New Port Richey. 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. In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. Shell with 3-4 whorls. Vertical ribs relatively strong and more widely spaced. Medium- to large-sized tropical freshwater snails. 51, 52). (Say, 1825). 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. Pilsbry, H. A. 15, 18). Helisoma anceps anceps 127); superior tubercles on penis arranged in oblique longitudinal series. 34, 35) (Pomatiopsis, Fig. Length of shell up to 5 mm. 68). Banded Mysterysnail Malacological Review, 12: 87-88. Indented Duskysnail Operculum tightly coiled with four slowly expanding whorls (Figs. . The . Crystal Siltsnail An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. Length of shell 2.2-2.6 mm (Fig. Floridobia ponderosa Clench, W.J. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. 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. Transparent white (Fig. Radial riblets on entire surface of shell except apex. Shell conical with strongly arched whorls and a deeply impressed suture. Aperture broadly in contact with preceding whorl. Shell elongate-conical, with about 5-7 whorls. Parietal margin of operculum concave (Fig. 7-9). 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. The spire differs between bumpy and smooth but it is always elongated. 115a, 115b). Lyogyrus retromargo It contains about a dozen species in North America. In others they are deposited in the water in gelatinous clusters. This is not the first time Florida has dealt with an invasion of giant snails. Operculum loosely coiled, with 3.75 large whorls, the outer one expanding more rapidly than the others (Figs. Campeloma floridense Penis with 3 papillae along right margin (Fig. Pomacea canaliculata Their siphonal canal is merged with their aperture and called a "siphonal notch". 66). Umbilicus open, although very narrow in some species; occasionally closed. Sides of spire straight in lateral profile. Penis with a very long slender flagellum that extends beyond terminal lobe. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. Hood Ancylid 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. 158). 96). Ferrissia is widely distributed in the northern hemisphere. Outer lip of aperture nearly straight in lateral profile (Figs. Body whorl uniformly rounded peripherally (Fig. Snails on corn. Fawn Melania Florida Horse Conch ( Triplofusus giganteus) is the largest snail in North America and is Florida's state shell. 204-207), often eroded in older specimens. They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . Adults about 5 mm long (Figs. Other families occur elsewhere in North America and in other continents. (Thompson, 1968). 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). Shell variable in shape. It is important to save some specimens for anatomical studies. 38). Umbilical perforation wide, 1/6 to 1/8 diameter of shell. Last whorl distinctly shouldered. Haitia cubensis 142). MESZAROS: It's not clear how these snails entered Florida again. Their color varies from red-orange, to pink, to a blue purple. Haitia bermudezi Apex of shell flat-topped, but sunken below periphery of last whorl. The reader may be troubled by the imprecise shell characteristics that are used in the key. Bright pink egg masses are laid on . Some species that are endemic to Florida springs live in environments with nearly constant temperatures and apparently reproduce continuously throughout the year. Shell large, 80-100 mm wide. Ichetucknee Siltsnail Shell nearly smooth, sculptured with irregular growth striations. Those available covered only part of the state or part of the fauna. Apex nearly straight-sided or concave in outline. A Guide to Florida Bird Species. 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. Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. Suture simple, not crenulated. Additional surveys found four different populations all associated with the CSX railways. It was well received, and it served the interests and needs of many people. Newborn shells white. Floridobia helicogyra Nautilus, 32: 71. Four species currently are recognized, but the genus has received very little study over most of its range. EDRR Invasive Species. Similarities in appearance among the exotic species can make identification very difficult. Mimic Pondsnail There is no consensus in systematic biology about how to treat these forms. 112), occurs in the Ocmulgee River system in Georgia. The Pleuroceridae of the Atlantic Coastal Plain. Gulf Coast Pebblesnail) Somatogyrus walkerianus (Aldrich, 1905). 81-83). Knobby Elimia Adult shells small, less than 3 mm high; umbilicus closed by the reflected columellar lip; columellar margin of the aperture nearly straight, barely convex (Fig. 4). 197-209). 83). The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. (Lea, 1862). 160, 163, 166). Shell very thin, fragile, transparent. Whorls uniformly rounded, not flattened above (Fig.144). (Lea, 1834). (Thompson, 2000). Click on the link in the row that best matches your snail. Thiarids are found in tropical and subtropical regions of the world. Malacologia, 23: 81-82. Oftentimes you'll see trails of mucous around these damaged sites. Elimia dickinsoni Inside of lip with or without a reddish callus but callus never dark red in color. It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). 169, 172). 162-164). (This character separates only the genera under consideration; genera from other areas of the world do not conform to this distinction.) Body whorl angular. Height of shell about 14-16 mm; width, 10-12 mm (Figs. Two new species of hydrobiid snails from Florida and Georgia, and a discussion of the biogeography of south Georgia streams. Its brown spotted exterior provides camouflage, making it a challenge to spot. Shell conical, thick, opaque. Adult large, about 23-27 mm long (Figs. Adult shells about 40 70 mm high (Fig. 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 Thompson, F.G. 1979. (Thompson, 1968). (The penis is normally recurved into the mantle cavity, except during mating. (Thompson, 1968). Two subfamilies occur in North America. Dipping them in a dilute solution of oxalic acid and gently scrubbing them with a fine brush can clean such specimens. Wekiwa Siltsnail Three species in Florida were introduced from Southeast Asia. Shell coiled to the left, with the aperture on the left side (Figs.147-158). Shell moderately elevated, over 0.25 times as high as long. Apex proportionally longer, about 0.3-0.5 times length of shell. Planorbella duryi Fenney Spring Hydrobe 2002. 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! This snail was twice established in southeastern Florida and was successfully eradicated both times. Parietal margin of operculum slightly convex in outline (Fig. Snails have invaded some local areas throughout northern Santa Rosa and Escambia Counties this summer. By Ker Than for National Geographic News. (Reeve, 1860). Spire short and compact, about 0.5-0.7 times height of aperture in mature specimens, proportionally longer in juveniles (Fig. Nuclear whorl slightly protruding, 0.29-0.41 mm in diameter transverse to initial suture. Occasional Papers of the Museum of Zoology, University of Michigan, (456): 1-6. The Junonia is seldom found, and is considered a special find by beachcombers. Shell medium-sized, 2.8 3.5 mm long; spire 0.9 1.1 times length of aperture; shell with 4.2-4.7 whorls (Fig. Females ovoviviparous or oviparous. 92). 11). Red-rimmed Melania Apex of shell slightly convex in outline. Shell short and stocky. Shell subcircular, smooth, often encrusted with dark material. Pomatiopsis lapidaria 45). Floridobia mica Black-crested Elimia) Elimia albanyensis (Lea, 1864). (Thompson, 1968). Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. "If you see one of these snails,. Shell rounded at the periphery (Figs. Accessory crest absent. JACKSONVILLE, Fla. - An invasive giant African snail that has already had to be eradicated twice in the last 50 years in Florida is back and one county is on high alert. Penis with different arrangement of papillae than above. (Thompson, 1968). 113). In Florida four types of Campeloma have been recognized. The deterioration process is not reversible. Shell specimens should be cleaned and air-dried. It is most common in Southwest Florida, and northwest Florida. Vas deferens independent of blind caecum and its duct. Surface smooth, glossy, striations when present very weak. Floridobia is known from peninsular Florida north along the Atlantic seaboard to Maine. Thick-lipped Rams-horn Identification KeysThese files are all keys for the identification of various kinds of organisms. Umbilicus narrow, without a strong circum-umbilical ridge, outer lip without a callus on inner surface. Aphaostracon pachynotus Aperture loosely attached to or widely separated from preceding whorl. Few of the North American species have been studied to the extent that their taxonomy, geographic distributions, life histories, and ecology are documented. Males with penis at anterior right corner of mantle cavity. Ferrissia hendersoni Operculum calcareous with two pegs on inner surface (Figs. Though small, this elusive specimen is a rare and valuable jewel, waiting to be discovered. Shell with prominent ribs and spiral chords on all whorls. Introduction to the Physidae (Gastropoda, Hydophila): biogeograhy, classification, morphology. 126); accessory crest present on penis. 57). 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. There is much disagreement as to how many species actually exist. Kites belong to the same bird family as hawks and eagles, Accipittridae. (Dall, 1885). Viviparus intertextus Hershler, R. & F. G. Thompson. A single species consisting of two highly variable subspecies occurs in Florida. 86). In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. 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. (Pfeiffer, 1839). Endemic New World genera occur in Cuba, Jamaica, and northern South America. (Say, 1829). Aperture usually open; occasionally with a horizontal, shelf-like septum closing posterior part (Fig. Embryonic shell with a strong peripheral spiral chord that continues onto following whorls (Fig. Laevapex diaphanus Outer lip continuously rounded (Figs. Some hydrobiid snails from Georgia and Florida. Shell smooth. Dasyscia franzi The author has attempted to simplify the key to include the minimum anatomical data needed for accurate identification. Wekiwa Hydrobe 99). One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. Shell with 5.0-6.5 whorls; about 3-5 mm long (Fig. 171-173). (Pfeiffer, 1839). Columellar margin of aperture very thick but not reflected over umbilical area (Fig.103). Philadelphia, 134: 143-77. Carib Physa Aperture elliptical or trapezoidal in shape. 81). Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. In previous editions of the manual the Florida species were placed in the genus Physella. Umbilicus open. Operculum corneas, without pegs on inner or outer surface. Conical Siltsnail Shell globose with a relatively depressed spire; about 1.0- 1.2 times as high as wide. Tadpole Physa Sides of spire slightly convex. 88). Define Invasive Species: must have ALL of the following -. North American freshwater snails: species list, ranges and illustrations. Spiral sculpture absent. Shell squat, compact, cylindric-conical in shape, thick and opaque. Mantle diffusely pigmented with melanophores (Fig. Recent studies treat amnicolids as a separate families. Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Do not use tap water since copper ions from the plumbing system may contaminate the tap water and kill the snails prematurely. Shell generally thin but strong; whorls of spire strongly convex with deep suture (Figs. A catalogue of the Viviparidae of North America with notes on the distribution of Viviparus georgianus Lea. Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Shell globose or tear-shaped. Proc. They were detected in 2011 in Miami-Dade County and eradicated again in 2021. Attains a length of about 30-36 mm (Figs. 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.
Jon Richardson Podcast Archive,
Spiritual Retreats South Australia,
Articles F