Bayou Physa It occurs in India, Sri Lanka, Bangladesh, Nepal, Pakistan and Brazil (Figure 1) (Raut and Ghose 1984; Biswas et al. Amnicola dalli. 203, 209). Penis filament white. (Pilsbry, 1899). This is essential in the case of the Hydrobiidae. Spire raised and flat-topped. 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. In Florida four types of Campeloma have been recognized. (Thompson, 1968). The beaches in Florida are perfect for shelling and beach combing. In previous editions of the manual the Florida species were placed in the genus Physella. 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. Similarities in appearance among the exotic species can make identification very difficult. Shell thin, fragile, very much depressed, less than 0.25 times as high as long. Shell generally thin but strong; whorls of spire strongly convex with deep suture (Figs. Acad. Pilsbry, H. A. The aquatic snails of the Family Hydrobiidae of peninsular Florida. (Walker, 1905). Female ovoviviparous with about 15 large embryos in uterus. (Jay, 1839). 146). The family attains its greatest diversity in Southeast Asia. An investigation by FDACS Division of Plant Industry found multiple positive sites with the snail in Miami-Dade County. The . Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda). 3). 88). Sculpture consisting of incremental striations only. Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Most species are disc-shaped or planular, as is implied by the name PLANORBIDAE. Tadpole Physa The species are highly variable, and there is no consensus regarding the number of valid species. The species was eradicated again in 2021 after being detected in 2011 in Miami-Dade County, according to FDACS. Alligator Siltsnail Nuclear whorl 0.29-0.33 mm in diameter. Mantle richly marked with reddish-brown blotches and spots. Peristome incomplete around aperture. 132). (Pfeiffer, 1839). 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. 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. Apex smooth, with no trace of radial striations (Fig. Thompson, F. G. & R. Hershler. (Say, 1829). Indented Duskysnail Pomacea bridgesi 5: 1-140. Work through the questions, each time choosing the characteristic that best matches your snail from the two choices. Outer lip straightened just below shoulder; straightened portion lying at an angle to axis of shell (Figs. Umbilicus narrow (Figs. (Thompson & Hershler, 1991). Shell rounded at the periphery (Figs. They are brown in color and have a striped pattern. Giant invasive snail sends one Florida county into quarantine Length of shell 2.0-2.4 mm (Fig. 93). (Pilsbry, 1890). Aperture moderately oblique. About 4.2-4.6 weakly arched whorls with a weakly impressed suture. It was well received, and it served the interests and needs of many people. (Fig.114). Serrated Crownsnail Flatwood siltsnail Shell conical or cylindric-conical. Outer lip partially flattened in adults. Shell discoidal, grayish-white in color; transparent when fresh. Shell nearly smooth, sculptured with irregular growth striations. Physid species have similar and superficially featureless, variable shells, and the shell is imprecise for identifying most genera and many species. Body whorl angular. Kites belong to the same bird family as hawks and eagles, Accipittridae. Apex very obtuse, almost in the middle of the shell. Rasp Elimia Terminal lobe of penis slender. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Interior of aperture livid white. Ghost Rams-horn This pest remains a threat in Florida, Hawaii and the Caribbean. Peristome ovate to subcircular. Florida Spent Over $24M Eradicating Invasive Snails That - Newsweek Shell with or without bright bands; with low wavy growth wrinkles; large but not robust, 23-28 mm long. 2002. This genus contains three species. The shell characters given above for separating the families apply only to Florida species. Clifton Spring Hydrobe Sculpture variable. Apical whorls raised to form a point on top of spire. Vail, V. A. Pygmy Siltsnail) Floridobia parva (Thompson, 1968). Aphaostracon theiocrenetus Clench, W.J., & R. D. Turner. The Horntail Snail ( Macrochlamys indica ): A New Invasive Pest in Florida Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. 61). (Pfeiffer, 1839). Planorbula armigera wheatleyi 129). Three species are known from rivers entering northwest Florida from Georgia and Alabama. 81-83). Fine vertical ribs present on uppermost whorls. (Pfeiffer, 1839). Proceedings of the Academy of Natural Sciences of Philadelphia, 86: 29-66. Peristome narrow to broadly ovate. Aperture without serrate denticles on parietal wall. Malacological Review, 19: 85-86. Ecology: This large snail is found in freshwater lakes, rivers, streams, ponds and ditches, preferring slow-moving water. Operculum nearly multispiral with four large, slowly expanding whorls (Fig. Two Land Snails from Florida - What's That Bug? Shell highly variable in shape; freshwater forms olivaceous or brown; adults with about 4.5-6.0 whorls; about 3.5-4.5 mm long (Fig. Axial striations distinct (Fig. Shell sculpture with incremental striations only. Floridobia leptospira Aperture broadly in contact with preceding whorl. They are beautiful when they are alive because the body of the snail is black with tiny white dots like the milky way galaxy. (Menke, 1839). Generally with distinct axial and spiral striations. Seashell Identification | Shell ID | Identify Sanibel Shell | I Love 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. Overshadowing this genetic divergence are frequent examples of convergent evolution of similar adult shell characters among distantly related species. Giant African Land Snails Discovered in Florida | Field & Stream One to several dark growth-rest varixes usually present on last whorl. (Gould, 1841). Fingers crossed, it'll stay that way. (Mller, 1774). Only three widely distributed species occur in Florida. (Pilsbry, 1889). Slough Hydrobe Ferrissia hendersoni Invasive snails that already cost FL $24 million are - Florida Phoenix 120). 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. Length of shell up to 5 mm. Mesa Rams-horn 180-182). Dangerous parasite found in South Florida snails - Sun Sentinel (Morelet, 1851). Waccasassa Elimia Newborn shells white. An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. The Pleuroceridae of the Atlantic Coastal Plain. 169). Shell 2.8-3.7 mm long. There have been introductions of this species into Argentina, the Atlantic Islands, Australia, Chile, Haiti, Mexico, New Zealand, and . The Florida Department . Invasive snail that loves damaging plants, living in humidity found in Ferrissia mcneilli 159-179). This is particularly so in the Pulmonata. Interior of adult aperture with brownish tinge. Shell thick and solid; whorls weakly convex or flattened (Figs. Hyacinth Siltsnail) Floridobia floridana (Frauenfeld, 1863). Aperture loosely attached to or slightly free from preceding whorl. Banded Mysterysnail Giant African land snail, Florida: Pest, parasite, meningitis concerns Euglandina rosea - Wikipedia (Pilsbry and Beacher, 1892). Aperture oval, about 0.75 times as wide as high. The reader will discover how very little we know about any genus occurring in Florida. Taylor recognizes twenty-three genera based on the soft anatomy. Its brown spotted exterior provides camouflage, making it a challenge to spot. 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. Shell coiled to the right, with the aperture on the right side (Figs. In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. 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. Lyogyrus retromargo Adults about 5 mm long (Figs. Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. 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. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. Shell distinctly carinated above and below; both apex and base funnel-shaped. 149). Size small I I to medium, 8-12 mm in length. Combining characteristics of cranes and rails, it . 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). Penis with a single papilla along left margin (Fig. Cymbal Ancylid Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). In others they are deposited in the water in gelatinous clusters. Frequently the shells of ampulariids and viviparids are very similar. 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. Horntail snails invade Florida with its first US appearance Females ovoviviparous or oviparous. 41-43). They're different than the ones found previously. It should be remembered that it is only a key which emphasizes shell characters. Shell conical, spire moderatly high. 159). Pomacea canaliculata (Lamarck, 1822) (Gastropoda, Prosobranchia, Pilidae): A freshwater snail introduced into Florida, U. S. A. Malacological Review, 30:91. Inside of lip with or without a reddish callus but callus never dark red in color. (Fig. Aperture comma-shaped, tightly appressed against preceding whorl. 63). Choctawhatchee Pebblesnail) Somatogyrus sp. (Sowerby, 1878). (Thompson, 1968). This is not the first time Florida has dealt with an invasion of giant snails. (Say, 1829). Shaggy Ghostsnail The snails are tan colored, high and conical, with mature snails about to 1-inch long. The first edition of The Freshwater Snails of Florida: a Manual for Identification was published in 1984. (Fig. Shell usually squarish or rectangular in shape. (Frauenfeld, 1863). 159-161). Freemouth Hydrobe The species of snail was present in Florida in the 1960s and 1970s before being eradicated in 1975, the FDACS said. (The penis is normally recurved into the mantle cavity, except during mating. Knobby Elimia Shell smaller, generally less than 12 mm long. Spire shorter, conical, 0.7-1.3 times length of aperture, nearly straight-sided in outline, suture of whorls weakly or moderately impressed. Shell moderately elevated, over 0.25 times as high as long. Opercula of minute snails can be studied most easily by removing them from the animal and viewing them with transmitted light. 17, 29-32), shell usually banded in Florida forms. Penis filament white. 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. Shell about 0.38-0.41 times as wide as high and about 20-27 mm long. 101). Accessory crest present. (Clench & Turner, 1956). Shell conical, olivaceous in color. It has many colorful stripes, colors, and bands on its shell which are usually orange, light orange, dark orange, or yellow. 68). 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. Radula with tricuspid lateral teeth (Fig. Invasive snail species found in Florida, University of Florida IFAS 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. The genus is found along the east coast of North America from Maryland south to Tabasco, Mexico. Taylor (2003) monographed the family Physidae. Planorbella trivolvis intertexta Embryonic shell smooth, without spiral chords (Fig. Ichetucknee Siltsnail 57). 174-176). Approximately 35 species have been described. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. 82). Marsh Rams-horn (Fig. Hello Bruce. Elimia doolyensis Penis with 0-6 papillae confined to right margin (Figs. Some hydrobiid snails from Georgia and Florida. Aphaostracon monas The basic shell morphology of the PLANORBIDAE is left-handed, or sinistral (FIGS. Apex about 0.4-0.5 times length of shell. Umbilicus of shell closed. 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. Revista de Biologia Trpical, 51 (supplement): 1-299. Most have monotonously simple, conical or depressed-conical shells that are nearly devoid of taxonomically useful characteristics. Aperture relatively shorter, about half or less the length of the shell. 1979a. Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). Shell conical to elongate-conical; whorls 4.0-4.5 with a deeply impressed suture. Crystal Siltsnail Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. Vas deferens independent of blind caecum and its duct. Shell glossy. Operculum paucispiral, with about three rapidly expanding whorls (Fig. Penis with a very long slender flagellum that extends beyond terminal lobe. Floridobia alexander Apex of shell flat, though it may be raised above the periphery of the last whorl (Figs. Goodrich, C. 1942. 36). The following shells are commonly found on Florida's beaches. Shell ovate, smooth or with fine raised riblets; riblets usually on the anterior slope when present. Unlike other brown-tinted giant snails, this. Body whorl strongly keeled as though pinched at the periphery (Figs. (Say, 1825). Fenney Spring Hydrobe Miscellaneous Publication of the Museum of Zoology, University of Michigan, 6: 1-213. The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. 34, 35) (Pomatiopsis, Fig. 70, 71). Penis with a large, blade-like flagellum with continuous heavy dermal glands along each side (Figs. (Clench & Turner, 1956). Aperture relatively ample (Figs. Radula with bicuspid lateral teeth (Fig. Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. Rhapinema dacryon 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. (Thompson, 1968). 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. Pilsbry, H. A. Shell with or without bands; slender; Suture deeply impressed; upper whorls with a strongly carinate periphery (Fig. Shell ovate in shape, about 1.2-1.5 times as high as wide. 69). This species is a fast and voracious predator, hunting and eating other snails and slugs. Shell larger, thicker, and opaque; spire 0.9-1.3 times length of aperture; with more than 4.2 whorls; penis flagellum with glandular crests. Umbilicus closed or narrowly perforate. The family contains many genera and numerous species in South America, Central America, Mexico, Africa, and Southeast Asia. Shell transparent or opaque. They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . 141). Earlier whorls of adult shell with vertical ribs and spiral chords. 2015; Jayashankar et al. Hatia pomilia hendersoni 64). 202, 208). 2015; Agudo-Padron 2018). Invasive giant African land snail found in Florida can carry meningitis 72-74). Length of shell 2.0-2.5 mm (Fig. Somatogyrus is distributed from the Mississippi River drainage system east to Atlantic coastal streams, and south to the Gulf coastal drainage systems. 15, 18). Identification KeysThese files are all keys for the identification of various kinds of organisms. (Linnaeus, 1758). Accessory crest absent. Laevapex diaphanus Those available covered only part of the state or part of the fauna. Outer lip less sinuous. (Dall, 1885). Shell sexually dimorphic in size, males about one-third as long as females. Newborn young about 3 mm in diameter. It contains about a dozen species in North America. Aquatic; moves by gliding motion. Shell relatively thin. U.S. Florida Invasive species. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. Parapical crest of verge greatly enlarged. As of last . Three species in Florida were introduced from Southeast Asia. 32). Occasional Papers on Mollusks, 2: 261-87. 60). Each snail has both female and male reproductive organs, so they can reproduce rapidly. 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. 136, 138). Nautilus, 32: 71. One species, C. chinensis malleatus (Reeve, 1863) (Fig. Fawn Melania Whorls rounded, not carinate above; occasionally angular below. Wekiwa Hydrobe 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. 94). Operculum with about 6 slowly expanding whorls (Fig. The primary differences between the two families are based on soft anatomy. Shell variable in shape, elongate to globose; usually not more than 5 mm in length; apex of spire seldom eroded (except in Somatogyrus); 4-6 whorls; shell smooth (except in Pyrgophorus and Tryonia); central tooth of radula with basal cusps (Figs. Bright pink egg masses are laid on . 143). Only genera that enter fresh water are treated. 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. Apex suppressed to form a nearly flat plane with the peripheral angle (Figs.165-167). 161, 164, 167). Little is known about these animals, and diverse opinions exist as to how many species are recognizable. Shell very thin, fragile, transparent. Outer lip of aperture arched forward (Figs. Shell medium to large (12-75 mm). Minor spiral sculpture weak or absent. Newborn young about 4.5 mm in diameter (this can be determined by removing juveniles from brood pouch). In the event that only shell specimens are available, picture-matching may be necessary to eliminate some choices in the couplets. Spiral sculpture faint or absent (Figs. Female ovoviviparous with about 50 embryos in uterus; embryos clearly evident through clean shells. Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. Transparent white (Fig. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. 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. Whorls of spire pointed and scalariform (steplike with nearly flat shoulders and deep sutures). Umbilicus of shell perforated or broadly open. Pewter Physa Umbilicus narrow, without a strong circum-umbilical ridge, outer lip without a callus on inner surface. 1956. Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Florida eradicates eight-inch snail for the second time in 10 years Whorls uniformly rounded, not flattened above (Fig.144). Pest alert: Invasive horntail snail found for first time in South Florida 100). Invasive giant snail species that carries deadly parasite detected in (Goodrich, 1924). 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 lightning whelk ( Busycon sinistrum) is one of the larger univalve snails found in Florida waters. 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. . 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. 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. Slackwater Elimia Outer lip strongly sinuous. The latter genus includes a single species, Cincinnatia integra (Say, 1817). Burch, J.B. 1989. The molluscan family Planorbidae. Shell conical, thick, opaque. Widely umbilicate. Penis with 2 or 3 papillae on left margin (Fig. 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. 140-146). Florida races to catch giant African snails, with the help of sniffer Rock Springs Siltsnail The planorbid fauna of the southeastern states is particularly poorly known. Floridobia ponderosa Our beaches often rank at or near the top in the world. (Thompson, 1968). Another giant African snail sighting forces Florida county into 10). Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. (Vanatta, 1934). This family includes four North American genera, Amnicola, Dasyscia, Colligyrus and Lyogyrus, and the European genus Marstoniopsis and some Asian genera. 204-207), often eroded in older specimens. Haitia cubensis Those had gray-brown flesh. 81). Shell usually elevated, but variable. 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. Size small, discoidal, adults seldom exceeding 4 mm in width. Additional surveys found four different populations all associated with the CSX railways. 3:51. The Junonia is seldom found, and is considered a special find by beachcombers. Female adult snail kites have yellow or orange legs and ceres; and red or orangish-brown eyes. Ponderous Siltsnail Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia, new genus (Prosobranchia, Hydrobiidae, Nymphophilinae). Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. Snails have invaded some local areas throughout northern Santa Rosa and Escambia Counties this summer. 112), occurs in the Ocmulgee River system in Georgia. Earlier whorls of adult shell with heavy vertical ribs crossed by knobby folds or a strong spiral chord; sides of spire straight or weakly convex in lateral profile; embryonic shell with a single spiral chord on periphery and heavy vertical ribs, but without basal spiral chord (Fig. The spire differs between bumpy and smooth but it is always elongated. Umbilicus wide (Fig. Penis with 3 I 0 small papillae around base and 7-15 papillae along right margin in a single row (Fig. It is essential that clean specimens be examined under proper lighting to observe diagnostic sculpture characteristics. Shell variable in shape. Radial striations present or absent Laevapex Walker, 1903. Shell nearly smooth, sculptured with irregularly spaced incremental striations (Figs. The genus Viviparus (Viviparidae) in North America. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. 127); superior tubercles on penis arranged in oblique longitudinal series. 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. 180-193). Laevapex fuscus 16 Different Types of Snails: Ultimate Guide (With Pictures) Viviparus intertextus 80). Peristome incomplete around aperture. (Lea, 1962). Video. Adequate preservation begins when the specimens are collected. (Reeve, 1856). Malacological Review, Suppl. Spire of adults without distinct vertical ribs. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Escambia Elimia Penis with 4-6 papillae along right margin (Fig. Identify your shells using our popular photo guide to southwest Florida shells from Sanibel Island and beyond. 119). 170, 173). Six species are known to occur in Florida. About fifteen species have been described from North America. Most snails will have a conical shaped shell. Apical whorls bluntly rounded and not conspicuously elevated. Laevapex is a North American genus. Outer lip of aperture with a thick callus on inner surface. Live snails for shell studies should be preserved in 70 percent alcohol. 90). 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. Shell elongate conical, spire high. The fixative may damage the shell, but that is unimportant for anatomical purposes. Two, Melanoides tuberculata and Tarebia granifera, are medically important because they can serve as first intermediate host for the human lung fluke, Paragonimus westermani. It also was the first adequately illustrated faunal summary published on the Southeast. 55). The Giant African Land Snail Has Been Spotted Again in Florida University of Illinois Press, Urbana. Nuclear whorl 0.41 mm in diameter transverse to initial suture. Shell grayish-white. Whorls straight-sided, not scalariform; suture hardly distinct; aperture terminating at periphery of last whorl; vertical ribs weaker and closely spaced; adult size about 25-30 mm long (Fig. (Walker, 1925). Gray to brownish-yellow in color. 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