NEW DATA ON THE RANINOIDEA-DE-HAAN, 1841 (CRUSTACEA-DECAPODA BRACHYURA PODOTREMATA)

Based on the essential characters provided by the disposition of the t horacic sternum and the paired spermathecae, the superfamily Raninoide a, placed in the Podotremata Guinot, 1977, with a single family (Ranin idae), is subdivided into six subfamilies. These are the three subfami lies previously recognized: Ranininae de Haan, 1841, emend. (with the single type genus Ranina Lamarck, 1801); Notopodinae Serene et Umali, 1972 (with the genera Notopus de Haan, 1841; Ranila H. Milne Edwards, 1837; Cosmonotus White, 1847); Symethinae Goeke, 1981 (with the single type genus Symethis Weber, 1795). The taxon Raninoidinae Lorenthey et Beurlen, 1929, is revalidated to receive the extant genera Raninoides H. Milne Edwards, 1837, Notosceles Bourne, 1922, and Notopoides Hende rson, 1888. A new subfamily, Lyreidinae subfam. nov., is established f or the genera Lyreidus de Haan, 1841 (type genus) and Lysirude Goeke, 1986. A fourth genus Umalia gen. nov. is added to the Notopodinae. A s ixth subfamily, Cyrtorhina Monod, 1956. The study of the sternal plate in a large number of fossil Raninoidea, which appeared in the early C retaceous with forms similar to recent genera and which flourished dur ing the Eocene, should make it possible to ally them to one or other o f these groups.