Orthalicus reses
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Orthalicus reses, the Stock Island tree snail or the Florida tree snail, is a species of large tropical air-breathing tree snail, a terrestrial pulmonate gastropod mollusk in the family Orthalicidae.
Stock Island, Florida is one of the places in which O. reses is known to occur.
Liguus
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Liguus is a genus of large tropical air-breathing land snails, more specifically arboreal or tree snails, terrestrial pulmonate gastropod mollusks in the family Orthalicidae.
Orthalicus reses
…trees may have been cast ashore on the Florida peninsula by high winds and hurricanes. This form of dispersal has been suggested for both Orthalicus and Liguus, but the exact origin of these species is still in question. In 1972, Craig suggested that populations of Orthalicus arrived directly across the Gulf…
Liguus fasciatus cropped
Generally recognized Florida subspecies of Liguus fasciatus (from Pilsbry, 1912), left to right: Liguus fasciatus castaneozonatus, L. f. elliottensis, L. f. graphicus, L. f. lossmanicus, L. f. matecumbensis, L. f. septentrionalis, L. f. solidus, and L. f. testudineus.
A shell of Liguus virgineus