Abstract
The 339 species-group names in the gastropod genus Conus proposed between 1758 and 1800 have been analyzed in chronological order, in order to (1) identify each nominal species, and (2) determine the correct name of each valid species. Additions and corrections are given to the author's series of papers on type specimens and identity of the described species of Conus. A table listing the 339 species-group names alphabetically indicates the present locations of the 124 known type specimens and the status of each name. At present, 123 valid species are recognized (118 Recent, 5 Tertiary), 159 names are synonyms of previously or simultaneously described species, 35 are nomina dubia, 19 are assigned to infrasubspecific rank, and 3 have been trandferred to genera in other families. Problems involving homonymy of 44 names have been resolved. The proportion of valid species to described species remained quite constant (about 80%) between 1758 and 1786, but then declined sharply to 40%. By 1800, although only 13% of all known species-group names in Conus had been introduced, they probably account for 25% of the known valid Recent species. Extension of the chronological study to species described through 1840 may establish the correct names of half the valid Recent species of Conus.
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