WW L^^ii»~^i • **«^«' s^f J-CLI//^/*IP / +' IU ! U~~> O' S~*Af/^i Contributions to Zoology, 69 (4) 223-250 (2000) SPB Academic Publishing hv. The Hague Re-evaluation of the Cancridae Latreille, 1802 (Decapoda: Brachyura) including three new genera and three new species 4 Carrie E. Schweitzer & Rodney M. Feldmann Department of Geology, Kent State University, Kent, Ohio 44242 U.S.A. E-mail:
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[email protected] Keywords: Decapoda, Brachyura, Cancridae, Tertiary, paleobiogeography, Tethys Abstract Metacarcinus A. Milne Edwards, 1862 235 Metacarcinus goederti new species 236 New fossils referrable to the Cancridae Latreille, 1802 extend Notocarcinus new genus 239 the known stratigraphic range of the family into the middle Eocene Notocarcinus sulcatus new species 240 and the geographic range into South America. Each genus within Platepistoma Rathbun, 1906 241 the family has been reevaluated within the context of the new Romaleon Gistl, 1848 242 material. A suite of diagnostic characters for each cancrid ge Subfamily Lobocarcininae Beurlen, 1930 243 nus makes it possible to assign both extant and fossil speci Lobocarcinus Reuss, 1867 243 mens to genera and the two cancrid subfamilies, the Cancrinae Miocyclus Miiller, 1979 244 Latreille, 1802, and Lobocarcininae Beurlen, 1930, based solely Tasadia Miiller in Janssen and Miiller, 1984 244 upon dorsal carapace morphology. Cheliped morphology is useful Discussion 245 in assigning genera to the family but is significantly less useful Acknowledgements 246 at the subfamily and generic level. Each of the four subgenera References 246 sensu Nations (1975), Cancer Linnaeus, 1758, Glebocarcinus Appendix A 249 Nations, 1975, Metacarcinus A.