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A BIODIVERSITY INVENTORY OF THE FRESHWATER SNAIL FAUNA OF HOLMES CREEK, FLORIDA

The freshwater snail fauna of Holmes Creek is of particular interest because of the richness of the fauna and the abundance of most species found there. The report is based on biodiversity inventories conducted by the author. All species records are based on specimens deposited in the Florida Museum of Natural History. Museum catalogue numbers are cited in column 3 of Table 2. For purposes of this report they are regarded as voucher specimens. In the absence of voucher specimens claims of species identifications could be considered hearsay.

Biodiversity surveys were conducted with the objective of obtaining specimens of all snail species present at a particular locality using standard qualitative survey techniques. The success of each survey was influenced by water levels at the time of the visit. High water levels constitute difficult survey conditions. Low water levels constitute optimal survey conditions. Water-level conditions explain, in part, different results between two or more site-visits at a given locality. Twenty-two (22) species of freshwater snails (TABLE 1) were found in Holmes Creek during forty-one (41) site-visits (FGT...., Column 2, Table 2) at thirty-one (31) field stations in surveys conducted between May 1970 and June 2000 (TABLE 2). Freshwater bivalves (clams) of the genera Pisidium and Corbicula are included in the TABLE 2, but are given no further accord.

The following freshwater snails were collected in Holmes Creek.