Abstract
In describing Cyclocancer to accommodate his new species C. tuberculatus, Beurlen highlighted that his new genus was a cancroid intermediate in form between Atelecyclus and Cancer, but with enough characters to be placed in a new genus. Examination of C. tuberculatus type material revealed that Cyclocancer is a junior synonym of Hepatus. Therefore, C. tuberculatus is herein transferred into Hepatus as H. beurleni nomen novum because H. tuberculatus (Beurlen, 1958Beurlen, K. 1958. Contribuição à paleontologia do estado do Pará, Crustáceos decápodes da Formação Pirabas I. (Arthropoda, Crustacea). Boletim do Museu Paraense Emilio Goeldi, nova série, Geologia, 5: 1-48.) is a junior homonym of H. tuberculatusSaussure (1858de Saussure, H. 1858. Mémoire sur divers Crustacés nouveaux des Antilles et du Mexique. Mémoires de la Société Physique et d’Histoire naturelle de Genève, 14(2): 417-496.), a junior synonym of Hepatus pudibundus (Herbst, 1785Herbst, J.F.W. 1782-1790. Versuch einer Naturgeschichte der Krabben und Krebse nebst einer systematischen Beschreibung ihrer verschiedenen Arten. Erster Band. Berlin, Krebse. iv + 274p., 21 pls.). Miohepatus gen. nov., comb. nov. is proposed here to accommodate Hepatella amazonica Beurlen from the Pirabas Formation, Neogene, Pará, Brazil, based on new morphological evidence from the type material.
Keywords
Fossil decapods; Pirabas Formation; Systematics; Aethridae; Aethroidea
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