|
Florida Apple Snail
''Pomacea paludosa'', common name the Florida applesnail, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Ampullariidae, the apple snails. Shell description This species is the largest freshwater gastropod native to North America.Burch, J. B. 1982. ''North American freshwater snails''. Walkerana 1(4):217-365. The shell is globose in shape. The whorls are wide, the spire is depressed, and the aperture is narrowly oval. The shells are brown in color, and have a pattern of stripes. The shell is 60 mm in both length and width. Distribution The indigenous distribution of this snail is central and southern Florida,Thompson, F.G. 1984. The freshwater snails of Florida: a manual for identification.' University of Florida Press, Gainesville, Florida, 94 pp. Cuba and Hispaniola.Dundee, D. S. 1974. ''Catalog of introduced molluscs of eastern North America (north of Mexico)''. Sterkiana 55:1-37. The nonindigenous distrib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Stehman Haldeman
Samuel Stehman Haldeman (August 12, 1812 – September 10, 1880) was an American naturalist and philologist. During a long and varied career he studied, published, and lectured on geology, conchology, entomology and philology. He once confided, "I never pursue one branch of science more than ten years, but lay it aside and go into new fields." Early life and education Haldeman was born in Locust Grove, Pennsylvania on August 12, 1812, the oldest of seven children of Henry Haldeman and Frances Stehman Haldeman. Locust Grove was the family estate on the Susquehanna River, twenty miles below Harrisburg. His father was a prosperous businessman and his mother was an accomplished musician who died when Haldeman was twelve years old. In 1826, he was sent to Harrisburg to attend school at the Classical Academy, run by John M. Keagy. After two years in the academy, he enrolled at Dickinson College where his interest in natural history was encouraged by his professor, Henry Darwin Rogers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
