They are most common on tropical islands but occur also in cold regions, where they hibernate. Shell keeled or strongly angular at the periphery (Figs. Most snails will have a conical shaped shell. University of Illinois Press, Urbana. Length of shell 3.0-4.0 mm (Fig. Adult shell without lamella on interior walls of aperture. Introduction to the Physidae (Gastropoda, Hydophila): biogeograhy, classification, morphology. 109a, 109b). Choctawhatchee Elimia Green Cove Springsnail 70). Live snails for shell studies should be preserved in 70 percent alcohol. 5: 1-140. Penis with 2 or 3 papillae on left margin (Fig. Females ovoviviparous or oviparous. 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. Specimens then are placed in a fixative such as 10 percent formalin or Bouins Solution. Thompson, F. G. 2000. 16 Different Types of Snails: Ultimate Guide (With Pictures) Basch (1963) recognized five valid species. Native and Invasive Land Snails - Rare, Beautiful & Fascinating Six Rivers CISMA EDRR Invasive Species of the Month - Bulimulus Some hydrobiid snails from Georgia and Florida. Length of shell 2.0-2.5 mm (Fig. 86). Many species are secondarily modified to appear right-handed or pseudo-dextral (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. Apex subacute, distinctly eccentric to the right of the midline. 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. In 2011, a population of the pests was discovered in Miami-Dade County. Outer lip partially flattened in adults. 77-79). However, formalin is an excellent fixative for short-term preservation. Aperture broadly attached to preceding whorl across parietal wall. The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. Parietal margin of operculum concave (Fig. Sculpture consisting of axial striations only (Fig.147). Various species of Cipangopaludina also have been introduced from the Orient into North America. Essentially identical shells occur repeatedly among unrelated genera and subfamilies. Female adult snail kites have yellow or orange legs and ceres; and red or orangish-brown eyes. The snails live in the bays and mudflats, but after they die their shells wash up on the beaches. Occasional Papers on Mollusks, 2: 261-87. Penis filament white. One species, C. chinensis malleatus (Reeve, 1863) (Fig. Outer lip strongly sinuous. Aperture free from, or only in slight contact with, preceding whorl. 171-173). Aphaostracon pachynotus Florida races to catch giant African snails, with the help of sniffer Only genera that enter fresh water are treated. (Fig. Macroinvertebrate Taxonomic Keys | Florida Department of Environmental Operculum paleomelanian, with a large sub-centrally located nucleus (Fig. 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. Some shells may be heavily encrusted with mineral deposit and algae, which may obscure details of the sculpture and color. Floridobia vanhyningi Spilochlamys conica Pseudosuccinea columella (Thompson, 1969). Cymbal Ancylid Types of Shells In Florida: Seashell Identification Guide Whorls of spire weakly scalariform, causing the suture to be deeply incised. Giant African snails can lead to giant problems. The molluscan family Planorbidae. 127); superior tubercles on penis arranged in oblique longitudinal series. (Thompson, 1968). 201, 207). Floridobia petrifons Plane of aperture nearly vertical when viewed from the side. Umbilicus widely perforate, accentuated by a strong circum-umbilical keel. Body whorl uniformly rounded peripherally (Fig. Length of shell 2.1-2.8 mm (Fig. Shell elongate with pointed conical spire. Whorls generally arched. Freemouth Hydrobe 36). Recent studies treat amnicolids as a separate families. Umbilicus closed or narrowly perforate. Narrowly umbilicate. terrestrial snails affecting plants in Florida - University of Florida Periphery variable. Shell globose with a short depressed spire; body whorl ample; umbilicus closed. (Pilsbry, 1890). Florida Shell Guide | 2FLA Florida's Vacation and Travel Guide Miscellaneous Publication of the Museum of Zoology, University of Michigan, 6: 1-213. Interior of aperture livid white. 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. Ampullariids have been referred to as PILIDAE in earlier editions of this manual. Hello Bruce. 107, 108). Length of shell 2.0-2.4 mm (Fig. Pilsbry, H. A. They achieve their greatest diversity in genera and species in temperate North America. Shell ovate in shape, about 1.2-1.5 times as high as wide. Floridobia leptospira 134). Adult size small, about 12-16 mm long (Fig. Shell specimens should be cleaned and air-dried. Identification. Average length about 5 mm (Figs. Penny Sprite) Micromenetus floridensis (Baker, 1945). 49, 50). Pomacea bridgesi 146). Davis, G.M., M. Mazurkiewicz, & M. Mandracchia. Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. Shell transparent or translucent. Over 500 species of Elimia have been described, most on the basis of shell characters. Radula with tricuspid lateral teeth (Fig. Purple-throated Campeloma This pest remains a threat in Florida, Hawaii and the Caribbean. This will lead you to the final choice which identifies the snail. Prepared by Fred G. Thompson, Fmr. Campeloma parthenum 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. Malacological Review, 24: 55-72. Pewter Physa Shell brightly banded and with large, wide and wavey vertical folds; robust, usually 21-25 mm long (Fig. Shell planular or disc-shaped; spire flat when raised above succeeding whorls (Figs. The LIOPLACINAE is endemic and include Campeloma, Lioplax, and Tulotoma. Prominent vertical ribs on middle and upper whorls. Height of shell about 23-26 mm (Figs. Endemic New World genera occur in Cuba, Jamaica, and northern South America. Last whorl of adult shell smooth or with growth striations, but not with ribs and spiral chords. Freshwater snails (Mollusca: Gastropoda) of North America. Dipping them in a dilute solution of oxalic acid and gently scrubbing them with a fine brush can clean such specimens. Basal lip of peristome deeply receded. 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. Shell with a brownish hue. Shell smooth. Opercula should be glued to cotton plugs and replaced within the aperture. Apex behind center of shell. 47). Surface smooth or dented with hammer marks. 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. Thin and translucent or transparent. Penis with invaginated cave-like pit within U-shaped superior tubercles. POMATIOPSIDAE Pomacea canaliculata (Lamarck, 1822) (Gastropoda, Prosobranchia, Pilidae): A freshwater snail introduced into Florida, U. S. A. Malacological Review, 30:91. Shell Guide | Bailey-Matthews National Shell Museum | Sanibel Island There were no references to cover the entire state. (Say, 1825). Similarities in appearance among the exotic species can make identification very difficult. Shell variable in shape. Waccasassa Elimia 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 . Last whorl flattened above. Aperture ovate; baso-columellar angle not extended; basal lip not indented. Sexes not conspicuously dimorphic in size. Campeloma parthenum (Gastropoda: Viviparidae), a new species from north Florida. 35). (Goodrich, 1924). 1945. About 4.2-4.6 weakly arched whorls with a weakly impressed suture. 172). The island apple snail is the largest of the known species in Florida with shell sizes up to five inches in length. 101). A giant African snail sighting in Florida enacted a quarantine over parasite concerns. They have been found in extremely high numbers in some crop fields, including corn, cotton, and peanuts, in home gardens, and around farm . Lower margin of aperture advanced beyond upper margin so that plane of aperture slopes posteriorly when viewed from the side (Figs.189-193). It became increasingly important to provide an identification manual of the freshwater snails of Florida for many reasons. Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs. The horntail . Most inhabit fresh water, but some also occur in brackish water. Penis as illustrated (Fig. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). Euglandina rosea - Wikipedia Spire of adults with heavy vertical ribs; unicolor dark brown; usually less than 18 mm long (Figs. i-xxxvi, 1-530 pls. 1965. Malacological Review, Suppl. 1918. Mimic Pondsnail Outer lip nearly straight and parallel to axis of shell in adults (Fig. 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). By Ker Than for National Geographic News. Texture dull. Penis without a conspicuously enlarged papilla near right base, although other papillae usually are present. 51, 52). Nuclear whorl slightly protruding, 0.29-0.41 mm in diameter transverse to initial suture. 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. Horntail snails invade Florida with its first US appearance October 14, 2021 7:00 am. 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. Operculum tightly coiled with four slowly expanding whorls (Figs. 149). Mantle mottled with black spots and blotches. Aperture loosely attached to or slightly free from preceding whorl. Size small, discoidal, adults seldom exceeding 4 mm in width. Shell sculptured with very fine, uniformly spaced axial threads (Figs.168-170). It is represented in North America by Viviparus. Aperture elliptical in shape; spire slenderer and slightly convex in outline; suture moderately impressed suture; parapical crest reduced in size. Pyrgophorus platyrachis Snails have invaded some local areas throughout northern Santa Rosa and Escambia Counties this summer. Micromenetus d. dilatus (Thompson, 1968). (Haldeman, 1841). Invasive Giant African Land Snail Spotted in Florida - Business Insider 132). The aquatic snail fauna of the southeastern United States has long been recognized for its richness and diversity. 10). Excentric Ancylid Taylor (2003) monographed the family Physidae. Marisa cornuaurietus Squaremouth Amnicola Apex fairly prominent as a rounded knob in the right posterior quadrant (Figs. This subfamily includes about fifteen North American and European genera (Thompson 1979). (Lea, 1838). Length of shell 2.4-3.4 mm (Fig. 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. 1980. This is essential in the case of the Hydrobiidae. 12). Aperture relatively large with fine, uneven, serrate denticles along parietal wall (Fig. Brownish-yellow in color (Fig. Axial striations distinct (Fig. Penis with papillae along right margin (Figs. Suture relatively deep, Whorls of spire rounded. (Pfeiffer, 1839). Additional surveys found four different populations all associated with the CSX railways. Whorls of spire strongly arched or rounded. Whorls globose, with a deeply impressed suture. Additional genera occur in the Orient, Southeast Asia, Africa, and South America. The following shells are commonly found on Florida's beaches. 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. Operculum nearly multispiral with four large, slowly expanding whorls (Fig. Peristome incomplete around aperture. Dorsl surface of penis with a few elongate superior tubercles that form a weakly defined U-shaped pattern. It also was the first adequately illustrated faunal summary published on the Southeast. Vertical ribs smooth along the periphery, strongly developed (Fig. All freshwater limpets in the southeast belong to this family. (Lea, 1962). Shell light brown and frequently mottled with rust-colored spots that may form a spiral row below the suture. (Say, 1829). Genera that serve as intermediate hosts for schistosomatid trematodes have been studied extensively. Armored Siltsnail It matters not that the specimens are stored in 70 percent alcohol after having been fixed in formalin. Adults about 2-3 mm long (Figs. (Thompson, 1968). Body whorl strongly keeled as though pinched at the periphery (Figs. (The penis is normally recurved into the mantle cavity, except during mating. Shell usually small to medium (2-25 mm). A preliminary revision of Florida Lioplax (Gastropoda: Viviparidae), with a description of Lioplax talquinensis n.sp. Shell globose with a relatively depressed spire; about 1.0- 1.2 times as high as wide. 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. In previous editions of the manual the Florida species were placed in the genus Physella. Elimia buffyae Low-dome Physa TAMPA, Fla. - A horntail snail, an invasive pest common in India, has been found in Miami-Dade County, spurring agriculture officials to start a program to prevent the possible spread of the species, the Florida Department of Agriculture and Consumer Services said Thursday. (Mihalcik & Thompson, 2002). Shell 2.8-3.7 mm long. Amnicola is a widespread genus in temperate North America. 24, 27). Elimia doolyensis Pomatiopsis lapidaria 1991. Shell shaggy with numerous spiral fimbriations that are broken into synchronized tufts. Lip of adult shell usually with a thick crest externally and an internal callus. 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. Four species currently are recognized, but the genus has received very little study over most of its range. The species of snail was present in Florida in the 1960s and 1970s before being eradicated in 1975, the FDACS said. (Jay, 1839). 1979b. Conical with relatively obese whorls. The last time anyone had seen a land snail in the Sunshine State was at the tail-end of a year-long, $23-million battle to eradicate the invasive species from South Florida in 2012. (Anthony, 1860). Spire depressed, much less than height of aperture, occasionally planular (Figs. 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. One species occurs naturally in Florida, and three others have been introduced. The genus is difficult to diagnose by shell characters because the three species are very dissimilar. Base of shell regularly expanding, not funnel-shaped. Aphaostracon monas This genus contains three species. 131). Maiden Campeloma Whorls flat-sided with suture weakly impressed. Pseudotryonia brevissimus Critical Florida references are Thompson 1968, 1969, 2000; Thompson and Hershler, 1991, and Hershler and Thompson, 1992.