Whorls of spire weakly scalariform, causing the suture to be deeply incised. Aperture enlarged (dilated). Freemouth Hydrobe Outer lip partially flattened in adults. 32). 143). Base of shell regularly expanding, not funnel-shaped. Umbilicus open. The state says a "gastropod enthusiast" collected unusual snails in the Coconut Grove area back in August. Central tooth of radula with long basocones along base (Fig. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). Aperture narrow, about half as wide as high. Bright pink egg masses are laid on . Lymnaeids are a nearly cosmopolitan family of freshwater snails. Additional surveys found four different populations all associated with the CSX railways. Hyacinth Siltsnail) Floridobia floridana (Frauenfeld, 1863). 16, 29). It is troublesome mostly in southern Florida as far north as Tampa, but because potted plants are regularly moved northward it can appear almost anywhere. (Fig. 146). 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. Size small I I to medium, 8-12 mm in length. Nuclear whorl 0.41 mm in diameter transverse to initial suture. Pomacea paludosa Shell smooth. 120). 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. Conical with relatively slender whorls. 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 . 88). 19-21). Nat. This genus of minute freshwater snails is endemic to the Florida peninsula. 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. Definitive identifications may require anatomical dissections and reference to other literature. (Thompson, 2000). One species, C. chinensis malleatus (Reeve, 1863) (Fig. (Thompson, 1968). Shell conical to ovate-conical. Suture more deeply impressed. Some hydrobiid snails from Georgia and Florida. Marsh Sprite (Morelet, 1851). As of last . 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 discoidal, grayish-white in color; transparent when fresh. Aperture ovate; baso-columellar angle not extended; basal lip not indented. This study was a landmark contribution to the malacology of the southeast, and it summarized the known fauna of western Florida. Penis with papillae along right margin (Figs. By Ker Than for National Geographic News. Aperture elliptical and usually attached to preceding whorl; 4.1-4.5 whorls present. Penis with a single papilla along left margin (Fig. Brackish-water genera, Onobops and Heleobops, that are common in Florida are omitted. 132). Aperture ovate; broadly attached to preceding whorl. Carib Physa Shell smaller, generally less than 12 mm long. 164, 167). Planorbella duryi It is essential that clean specimens be examined under proper lighting to observe diagnostic sculpture characteristics. Shell conical to elongate-conical; whorls 4.0-4.5 with a deeply impressed suture. Clench, W.J., & S. L. H. Fuller. 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 fixative may damage the shell, but that is unimportant for anatomical purposes. Umbilicus closed. Height of shell about 14-16 mm; width, 10-12 mm (Figs. Shell depressed. 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. Fossaria modicella It was well received, and it served the interests and needs of many people. Dasyscia franzi Aperture trapezoidal in shape; spire more robust, straight sided; with a shallower suture; parapical crest large (Fig. Base of shell when viewed from below showing about half of preceding whorl due to straight basal lip (Fig. Shell with 4.4-5.0 whorls; about 3.7-5.2 mm long. There were no references to cover the entire state. (Aguayo, 1935). B. Thin and translucent or transparent. 37), which is important for generic and specific diagnosis. Taylor, D. W. 2003. Thiarids are ecologically significant because they tend to replace native snails where they are introduced and because of their abundance. Aperture comma-shaped, tightly appressed against preceding whorl. This is not the first time Florida has dealt with an invasion of giant snails. Radula with tricuspid lateral teeth (Fig. Adults 9-15 mm wide (Figs. Operculum nearly multispiral with four large, slowly expanding whorls (Fig. Female shell about 4-6 mm long (Figs. Outer lip of aperture nearly straight in lateral profile (Figs. Columellar margin of aperture very thick but not reflected over umbilical area (Fig.103). 105, 106). Surface smooth or dented with hammer marks. 55). They are variable in their shell characteristics, and some samples may be difficult to identify. Shell short and stocky. Umbilicus closed or narrowly perforate. Land Snail (Bulimulus sporadicus)A large group of Bulimulus sporadicus found in the Florida panhandle. 121). Shell unicolor brown, never mottled with reddish spots. Operculum with concentric growth rings around nucleus (Figs. Fortunately in Florida, the species are relatively easy to distinguish. 141). Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. Color of fresh shell never milky white. Penis with papillae along both margins, or right margin only (papillae absent in some Aphaostracon). Gray to brownish-yellow in color. 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! Operculum calcareous with two pegs on inner surface (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. It is presented in the form of key supplements with illustrations and habitat information to facilitate identifications. Aphaostracon asthenes Suture weakly impressed. Floridobia vanhyningi Suture deeply impressed. Operculum neomelanian, with a small, rapidly expanding nucleus located near the basal margin (Fig. 66). Adams, 1841). It is globose in shape, body whorls are wide, spire is depressed, and the aperature is narrowly oval (Burch 1982). 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. The latter are placed in a small container filled with pond water. Whorls flat-sided with suture weakly impressed. Melanoides tuberculata (Muller) in Florida. 57). Red-rimmed Melania Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. 137, 139). U.S. Florida Invasive species. Elimia floridensis 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. Shell larger, 2.2-4.8 mm long. 10). Basch (1963) revised the classification and recognized only twelve species. Shell specimens should be cleaned and air-dried. 77-79). Aperture broadly ovate. This is particularly so in the Pulmonata. Horse conch in mud Horse Conch snail The mature horse conch can be two feet long! Overshadowing this genetic divergence are frequent examples of convergent evolution of similar adult shell characters among distantly related species. 16, 17). (Lea, 1842). The lightning whelk ( Busycon sinistrum) is one of the larger univalve snails found in Florida waters. Taylor (2003) monographed the family Physidae. Evolution has occurred through reproductive specialization, with each genus and most species having distinctive patterns of dermal glands. 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. 46). (Fig.114). Umbilicus narrow, deep (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. Hershler, R. & F. G. Thompson. 5). It is characterized by the lobed shape and glandular patterns of the penis. Florida Shell Guide. 10-12). Click on any of the seashell identification photos for information about each shell, where they were found, who found these shells and so much more. Central tooth of radula with basocones located on fore or lateral wing of tooth (Figs. Cockscomb Hydrobe 60). Attains a length of about 30-36 mm (Figs. 3). 161, 164, 167). Peristome ovate to subcircular. Apex very short, only slightly raised above body whorl. Shell more slender, about 0.30-0.35 times as wide as high. 70). The Snail Kite uses its slender, curved bill to extract its primary prey, the apple snail, from its shell. 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 Shell elongate conical, spire high. Spire of adults with heavy vertical ribs; unicolor dark brown; usually less than 18 mm long (Figs. Most freshwater hydrobiids in the eastern United States are annual species. Planorbella scalaris 34, 35). Shell ovate in shape, about 1.2-1.5 times as high as wide. Vas deferens independent of blind caecum and its duct. Physella gyrina aurea Newborn young about 3 mm in diameter. 1979b. Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. 110, 111, 68). They are most common on tropical islands but occur also in cold regions, where they hibernate. The species was eradicated again in 2021 after being detected in 2011 in Miami-Dade County, according to FDACS. Pilsbry, H. A. The shells should be rinsed frequently in tap water during the cleaning process to prevent etching by the acid. Aperture elliptical and loosely attached to or slightly separated from preceding whorl; 4.5-4.9 whorls. Aphaostracon rhadinus Basch (1963) recognized five valid species. Parietal margin of operculum concave (Fig. 204-207), often eroded in older specimens. Shell with about 4.5-5.0 whorls; about 3.0-4.8 mm long (Fig. Apex very obtuse, almost in the middle of the shell. Shell cylindric-conical, solid opaque; 4.5-4.9 moderately rounded whorls. Shell coiled to the right, with the aperture on the right side (Figs. Shell relatively thick (Figs. Aperture relatively shorter, about half or less the length of the shell. (Thompson, 1968). Campeloma parthenum 80). The genus Viviparus (Viviparidae) in North America. This pest remains a threat in Florida, Hawaii and the Caribbean. Penis with one papilla on left margin (Fig. Spilochlamys conica (Thompson, 1968). Three new freshwater snails of the genus Cincinnatia from peninsular Florida. Giant African Land Snail Identification Sheet - Florida Commissioner of . 1-69. Adults with about 5 whorls, and 10-13 mm wide (Figs.177-179). Malacological Review, 24: 55-72. Biochemical studies show that in Elimia shell characters are conservative indicators of genetic divergence (Mihalcik & Thompson, 2002). It is important to save some specimens for anatomical studies. Adult shell without lamella on interior walls of aperture. (Pfeiffer, 1839). 172). 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. 1980. Campeloma limum Snails in wild populations range in shell color from yellow to brownish-black, and may contain stripes or dimpling. 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. This family contains twelve genera in North America. The LIOPLACINAE is endemic and include Campeloma, Lioplax, and Tulotoma. Prominent vertical ribs on middle and upper whorls. 99). Shell glossy. Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). 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. The planorbid fauna of the southeastern states is particularly poorly known. Inferior crest usually present. Nautilus, 83: 72. Penis with large a terminal lobe on the left side and a smaller appendix-like flagellum on the right side. 17-29). Female adult snail kites have yellow or orange legs and ceres; and red or orangish-brown eyes. Shell globose with a short depressed spire; body whorl ample; umbilicus closed. 82). (Say, 1829). The family attains its greatest diversity in Southeast Asia. Te, G.A. Color often glossy reddish brown. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. 15, 18). The . Shell minute, 2.0-2.3 mm long; thin and transparent; spire 0.7-1.1 times length of aperture; flagellum lacking glandular crests. Suture of whorls more deeply impressed than in previous species. 68); lobe and flagellum with various patterns of dermal glands; central tooth of radula with basocones located on reflected margin of tooth (Fig. 3:51. A review of the recent freshwater limpet snails of North America. Aperture terminating below periphery of body whorl. (Lamarck, 1822). Veliger, 45:269-271. Since then a great amount of fieldwork has taken place throughout Florida, and many additions to the fauna have come to light. 61). As a result . Body whorl inflated. 159, 162, 165). Surface smooth, glossy, striations when present very weak. . The beaches in Florida are perfect for shelling and beach combing. Rock Springs Siltsnail Shell with 5.6-6.8 whorls; about 3.2-4.5 mm long (Fig. Thompson, F. G. 1969. Choctawhatchee Pebblesnail) Somatogyrus sp. Penis of males with papillae along sides (Figs. Length of shell 2.0-2.4 mm (Fig. Floridobia is known from peninsular Florida north along the Atlantic seaboard to Maine. 49, 50). One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. 135). Females ovoviviparous or oviparous. Over 500 species of Elimia have been described, most on the basis of shell characters. 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. Sculpture above periphery of whorls consisting of nodes arranged in vertical and spiral rows. Penis filament white. (Vail, 1979). 15). Unlike other brown-tinted giant snails, this. dalli Additional genera occur in the Orient, Southeast Asia, Africa, and South America. Low-dome Physa 197-209). Giant Snails Invading Florida, "Major Threat" to Crops. Interior of adult aperture with brownish tinge. Apex of shell flat, though it may be raised above the periphery of the last whorl (Figs. common name: tree snails of Florida scientific name: Gastropoda: Stylommatophora: Bulimulidae Introduction - Identification - Key to the Bulimulidae of Florida - Selected References Introduction (Back to Top) Many snails are found in trees, but only a few are exclusively arboreal for most or all of their life cycle. Waccasassa Elimia Others were new taxa not found in earlier surveys. Tarebia granifera Female shell about 3.5-4.0 mm long (Fig. 11). Periphery of body whorl below middle, side of whorl flattened and sloping toward apex (Fig. They achieve their greatest diversity in genera and species in temperate North America. Littoridinops is found most frequently in brackish water, although the three species found in Florida also occur in frehswater. A giant African snail sighting in Florida enacted a quarantine over parasite concerns. Length of shell 2.4-3.4 mm (Fig. This revision follows the classification proposed by Taylor. Thompson, F. G. 1982. The number of whorls persent on the shell can help you easily identify the snail species. Sculptured with fine incremental striations and a few fine spiral striations (difficult to distinguish except with transmitted light). This genus contains three species. 112), occurs in the Ocmulgee River system in Georgia. (Thompson, 1968). About 4.2-4.6 weakly arched whorls with a weakly impressed suture. 180-193). Your choice will lead you to the proper identification of your snail or the next appropriate pair of questions. 69, 70). Shell obese and ponderous. Smooth-ribbed Hydrobe Newborn shells white. Body whorl angular. 140-146). Black-crested Elimia) Elimia albanyensis (Lea, 1864). Whorls generally arched. (Lea, 1838). NERITIDAE Clench, W.J., & R. D. Turner. 93). Malacological Review, 12: 41-49. Hebetancylus excentricus Three other species occur farther north. 102a, 102b). 169, 172). 117). In 1976 in the St. Johns River 1 found Melanoides tuberculatus with population densities of 10,000/m2. Umbilicus narrow, without a strong circum-umbilical ridge, outer lip without a callus on inner surface. Length of shell up to 5 mm. Shell cylindric-conical with 4.5-5.0 whorls. Blue Spring Hydrobe 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. Fred G. Thompson (1934-2016) The International Commision on Zoological Nomenclature has ruled that AMPULLARIIDAE is the valid name for this family of snails. Penis with a large, blade-like flagellum with continuous heavy dermal glands along each side (Figs. Seminole Siltsnail Taylor recognizes twenty-three genera based on the soft anatomy. Apex of shell slightly convex in outline. Bantam Hydrobe Formalin will corrode the shell and thereby eliminate color, delicate sculpture, and the periostracum the thin skin coating present on most shells. Typically, land snails live on or near the ground, feed on decaying plant matter, and lay their eggs in the soil. The snails identified in Pasco County look different from the ones previously seen in Miami-Dade County: Their flesh is creamy white, rather than grayish brown. Adult shells about 40 70 mm high (Fig. Only Elimia is found in Florida. (Walker, 1908). (Thompson, 1968). The reader may be troubled by the imprecise shell characteristics that are used in the key. (Walker, 1925). Shell usually marked with red or rust-colored spots, flames, or bands (most apparent on juvenile specimens). We Floridians have so much to be proud of. Umbilicus open, although very narrow in some species; occasionally closed. The HYDROBIIDAE include over 200 genera and approximately 1000 species. Hello Bruce. 4). There is much disagreement as to how many species actually exist. 128). (Thompson, 1968). Nautilus, 19: 34. Viviparus contectoides limi, new name for V. c. compactus Pils. Widely umbilicate. Penis with superior tubercles forming a vague broken loop; invaginated cave-like pit absent. 48). (Mihalcik & Thompson, 2002). (Couper, 1844). 162-164). (Thompson, 1968). By 1973, more than 18,000 snails had been found and destroyed along with thousands of eggs, and the snail was . Vertical sculpture reduced to irregularly spaced and uneven growth striations or low undulating ribs. Embryonic shell with a strong peripheral spiral chord that continues onto following whorls (Fig. Aperture oval, about 0.75 times as wide as high. 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 . 115, 116). It contains about a dozen species in North America. 159). Apex in about middle of shell. Medium to large freshwater snails found on all continents except South America. 89). The following shells are commonly found on Florida's beaches. Most snails will have a conical shaped shell. Apical whorls bluntly rounded and not conspicuously elevated. 124). Snails have invaded some local areas throughout northern Santa Rosa and Escambia Counties this summer. 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. 90). 69). Frequently the shells of ampulariids and viviparids are very similar. 38). Contents 1 Shell description 2 Distribution 3 Ecology 4 References 5 Further reading Shell description [ edit] Five views of a shell of Pomacea paludosa Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. Lioplax pilsbryi pilsbryi Floridobia mica It matters not that the specimens are stored in 70 percent alcohol after having been fixed in formalin. Aperture narrowly in contact or free from preceding whorl. Acad. Nuclear whorl flattened, 0.41-0.48 mm in diameter transverse to initial suture. Each: $28.50 M-890 BANDED TULIP SHELL, Fasciolaria lilium A small predatory snail that feeds on clams. The greatest diversity of genera and species is in the Indo-Australian region. Revista de Biologia Trpical, 51 (supplement): 1-299. Operculum spiral, consisting of two or more rapidly increasing whorls (Fig. Vail, V. A. The following key is modified from Basch (1963). (Haldeman, 1841). Their siphonal canal is merged with their aperture and called a "siphonal notch". Mantle diffusely pigmented with melanophores (Fig. 33); males without copulatory structures. Conical Siltsnail Marginal teeth of radula trapezoidal with well-differentiated cusps. Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. The sexes are separate and fertilization is internal (Andrews, 1964). (Clench, 1925). "If you see one of these snails,. Shell more slender and attenuate; spire more elongate in adults, about 0.7- 1.0 times height of aperture. 68). Shell larger, reaching a maximum diameter of 18 mm. Some were range extensions for species known to occur in adjacent areas. (Thompson, 1968). Slough Hydrobe 153). Shell subcircular, smooth, often encrusted with dark material. However, this appears to be an over reduction, and several southern species were synonymized that appear worthy of recognition. (Thompson, 1968). Female ovoviviparous with about 50 embryos in uterus; embryos clearly evident through clean shells. The VIVIPARINAE is widely distributed throughout Europe, Asia and eastern North America. Rock Fossaria Whorls uniformly rounded, not flattened above (Fig.144). Size small, discoidal, adults seldom exceeding 4 mm in width. 145). 197, 204). Shell without conical spines, although spiral threads may be present. Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). An invasive, giant snail species, that can also lead to outbreaks of meningitis, has been found in New Port Richey. 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. A single species consisting of two highly variable subspecies occurs in Florida. Curator of Malacology. A giant African land snail, photographed at a lab in 2014. Hydrobiids are small- to medium-sized operculate snails that live primarily in brackish and fresh water. Opercula should be glued to cotton plugs and replaced within the aperture. Body whorl uniformly rounded peripherally (Fig. Campeloma parthenum (Gastropoda: Viviparidae), a new species from north Florida. Viviparus georgianus Outer lip nearly straight and parallel to axis of shell in adults (Fig. Aperture widely separated from preceding whorl. (Pilsbry, 1899). The manual treats only those genera that occur in freshwater. Melanoides tuberculata Two-ridged Rams-horn 85). 199). Shell usually large, about 12-16 mm long. (Thompson, 2000). Those available covered only part of the state or part of the fauna. Channeled Applesnail Umbilicus variable. 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.