Umbilical perforation narrow, 1/8 – 1/10 diameter of shell. 2009. Figure 8. 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. Freshwater snails like the mystery snail, rabbit snails, turbo snails, nerite snails, and many more make the perfect addition for planted aquariums of all kinds. Enterprise Siltsnail) Floridobia monroensis (Dall, 1885). Planorbis alabamensis and dilatatus in the Floridian Pliocene. The white-lipped globe, Mesodon thyroidus (Say, 1816), lateral view. Chemical control. Shell transparent or opaque. Suture relatively shallow. (Say, 1825). The planorbid snail Micromenetus dilatatus avus in the West Indies and Central America. They grow at least 2.5 cm in size, so they are not as big as the brotia herculean. In others, some or all populations may be parthenogenetic, consisting only of females, or they may have a disproportionately small number of males. Physella gyrina aurea (Say, 1825). Channeled Applesnail Photograph by Lyle Buss, University of Florida. Mantle spotted with black, shaded or unmarked; terminal lobe of penis with complex crests that cause it to look like an animal’s head; flagellum slender, with scattered and discontinuous glands along edge (Figs. Conical with relatively obese whorls. (Fig. Shell sculptured with fine spiral striations, and in some cases curved axial ribs. Aperture elliptical in shape; spire slenderer and slightly convex in outline; suture moderately impressed suture; parapical crest reduced in size. They also inhabit nearly all ecosystems. The latter are placed in a small container filled with pond water. 125); accessory crest absent on penis. Aperture of shell closed by an operculum (snail must be collected live because the operculum is lost soon after death). 36). 110, 111, 68). Thus, snails may copulate and inseminate each other simultaneously, and even self-fertilization may occur. Figure 20. Spire of adults without distinct vertical ribs. Barriers are also useful for minimizing damage by snails and slugs (Hata et al. The LIOPLACINAE is endemic and include Campeloma, Lioplax, and Tulotoma. (Fig. The skin is responsible for water regulation, and contains glands that secrete slime, which aids both in preventing dehydration and in locomotion. The whorls have been accurately described as coiled like a rope, and they are well marked with ridges or ribs, adding to the rope-like appearance. Nuclear whorl flattened, 0.41-0.48 mm in diameter transverse to initial suture. Lioplax pilsbryi choctawhatchensis The color is variable, often brownish, yellowish, or tan, and usually with a narrow brown stripe on the perimeter of the whorl. Parapical crest of verge greatly enlarged. Philadelphia, 134: 143-77. Shell translucent. It occurs widely in South America and also now is found in Arizona and California. (Vanatta, 1935). Lioplax pilsbryi pilsbryi Shell elongate-conical; 10-40 mm long in adult specimens; apex of spire usually eroded; shell with 8-12 whorls although eroded specimens may have fewer; shell usually strongly sculptured with spiral and/or vertical ribs and threads (except in Elimia dickinsoni); central tooth of radula without basal or lateral cusps (Fig. 117). Operculum paucispiral, with about three rapidly expanding whorls (Fig. 1940. Spiketopped Applesnail One species, C. chinensis malleatus (Reeve, 1863) (Fig. Iron phosphate is much safer than metaldehyde and/or carbamates for use around pets and vertebrate wildlife, and also is effective (Speiser and Kistler 2002). The opening (aperture) of the shell is only slightly flared. It has at least a two-year life cycle in more northern areas, but in Florida its biology is unknown. Fawn Melania 55). Adults about 5 mm long (Figs. This commonly occurring snail will feed on plants, and is documented to inhibit establishment of legumes, particularly white clover and to a lesser degree red clover and alfalfa, in Florida (Kalmbacher et al. Shell usually elevated, but variable. Penis with large papilla on right margin near base and one or two papillae on left margin near distal end (Figs. Apex with fine radial striations (Figs. Aphaostracon rhadinus Shell thick and solid; whorls weakly convex or flattened (Figs. Many samplings of hydrobiids collected during the period of May through September are not identifiable because only immature forms are present, and important diagnostic anatomical characteristics have not yet developed. Shell elliptical-ovate in shape. Thompson, F. G. & R. Hershler. Shell obese and ponderous. After being eradicated from Florida in the last century, Florida is once again faced with an infestation of the giant African land snail in the Miami area. Radula with bicuspid lateral teeth (Fig. Thin and translucent or transparent. The criterion of inbreeding for defining species cannot be applied, and other objective criteria are not yet been established. Goodrich, C. 1942. One species occurs naturally in Florida, and three others have been introduced. One species occurs naturally in Florida, and three others have been introduced. Florida Applesnail 159-161). Florida has only a few problem snails, mostly nonindigenous species that were introduced, either deliberately or accidentally. Thompson, F. G. 1983. Marisa cornuarietis has been introduced into some bodies of water for vegetation control. 37), which is important for generic and specific diagnosis. Fossaria is found throughout North America, and in northern Europe. Alexander Siltsnail Base of shell with dark red spiral band. 5). Parietal margin of operculum concave (Fig. Newborn young about 4.5 mm in diameter (this can be determined by removing juveniles from brood pouch). Nautilus, 83: 72. Figure 12. (Thompson, 1968). Penis with a large, blade-like flagellum with continuous heavy dermal glands along each side (Figs. Reduce their population by trying to manage their living conditions. This revision follows the classification proposed by Taylor. 170, 173). Aperture broadly in contact with preceding whorl. The jumping snail, Ovachlamys fulgens (Gude, 1900). Penny Sprite) Micromenetus floridensis (Baker, 1945). Sci. Radke MG, Ritchie LS, Ferguson FF. Average length about 5 mm (Figs. Te, G.A. 76). Other families occur elsewhere in North America and in other continents. 1905. Inferior crest absent. 1 Response. The whorl is flared at the opening (aperture) and the aperture has a pronounced tooth, causing the opening to be heart-shaped. This snail has a yellow-brown shell with 4 whorls, the last whorl about twice as wide as the preceding whorl. Outer lip of aperture with a thick callus on inner surface. Hubricht L. 1985. Shell conical, spire moderatly high. (Walker, 1905). Some terrestrial snails have a temporary operculum, however, and which is called the epiphragm. Figure 14. Thick-shelled Hydrobe 4, 5). Shell usually large, about 12-16 mm long. There are alternatives to metaldehyde. Sides of spire straight-sided in outline. Field tests with a molluscicide containing iron phosphate. 174-176). Escambia Elimia 94). (Fig. Euglandina rosea is native to the southeastern U.S., and is quite common in woodlands and gardens in Florida. Mimic Pondsnail Goldenhorn Marisa Choctawhatchee Pebblesnail) Somatogyrus sp. North American freshwater snails: species list, ranges and illustrations. It has been introduced into Abu Dhabi, Dubai, Saudi Arabia and Qatar, probably along with turfgrass sod, and has become quite numerous there, though no damage is documented. Three new freshwater snails of the genus Cincinnatia from peninsular Florida. One species, Spilochlamys turgida (Thompson, 1969), the Pumpkin Siltsnail (Fig. Viviparus contectoides limi, new name for V. c. compactus Pils. Floridobia mica The family attains its greatest diversity in Southeast Asia. 153). 149). Dorsolateral view of Cuban brown snail, Zachrysia provisoria (L. Pfeiffer, 1858), with quarter shown for scale. 53). Otala lactea is a native of the eastern Mediterranean (Canary Islands, Morocco, Portugal, Spain), but has been relocated to other areas of the world (Argentina, Australia, Bermuda, Cuba, USA), sometimes because it is edible. They are 35–50 mm in diameter. Marsh Sprite Shell with 3-4 whorls. Land Mollusca of North America (north of America) Philadelphia Academy of Natural Sciences Monograph 3, vol. Transparent white (Fig. Endemic New World genera occur in Cuba, Jamaica, and northern South America. Females with an egg-laying groove or sinus on right side of foot; eggs deposited on substrate. They occur in both aquatic (marine and fresh-water) and terrestrial environments. Rock Fossaria Rhapinema dacryon Shell usually planispiral, but two species may have a flat-topped, elevated spire. Embryonic shell with fine vertical ribs and a heavy spiral chord on periphery and two basal spiral chords (Fig. 109a, 109b). Malacologia, 23: 81-82. Walkerana, 1: 81-365. Shells | Shell Collecting | Nature - Jacksonville, Florida. The systematic relationships of the hydrobiid snail genus Nymphophilus Taylor, 1966 and the status of the Subfamily Nymphophilinae. The bodies of large snails, such as viviparids and pilids, should be pulled from the shell. Ventridens demissus and Ventridens cerinoideus occur widely in eastern North America, but are restricted to the northern counties of Florida, south to Alachua County. Formalin does not even serve as a good fixative or preservative for long-term anatomical studies. Shell unicolor, with distinct vertical sculpture in addition to strong spiral sculpture. Shell squat, compact, cylindric-conical in shape, thick and opaque. Shell usually corpulent, brown or green, generally opaque, but occasionally translucent in juveniles. It is characterized by the lobed shape and glandular patterns of the penis.