%0 Journal Article %T Review and Catalog of the Ostracode Family Rutidermatidae (Crustacea: Myodocopa) %A Elizabeth Harrison-Nelson %A John M. Orr %A Margaret E. Tarmann %A Louis S. Kornicker %J ISRN Zoology %D 2011 %R 10.5402/2011/128528 %X Cohen and Kornicker (1987) presented a catalog of species of the Rutidermatidae that had been published prior to March 1986. The present contribution includes one additional subfamily, one additional genus, and twelve additional species (one new) and, also, keys to subfamilies, genera, and species, illustrations of carapaces, tables giving characteristics of appendages, and maps showing distribution of species. 1. Introduction Family Rutidermatidae belongs to the subclass Myodocopa, order Myodocopida. Order Myodocopida can further be divided into the three suborders Cladocopina, Halocypridina, and Myodocopina. The Rutidermatidae is one of five extant families included in the ostracod suborder Myodocopina. It contains two subfamilies: the Rutidermatinae with three genera (Alternochelata with four species, Rutiderma with 37 species, and Scleraner with two species) and the Metaschismatinae with one genus (Metaschisma with two species). Cohen and Kornicker [1] published a catalog of species of the Rutidermatidae that had been reported prior to March 1986. Since then, an additional subfamily and genus as well as 12 new species have been included in the family, and taxa have been reported from additional localities. We have updated the catalog to August 2009 and have included keys and appendices to help compare and identify the species in this family. Keys are used with care; determination of species should always be verified by use of the descriptions and figures. A tabular key to families of Myodocopida was given in Cohen and Morin [2, Appendix£¿£¿3] and in Cohen et al. [3, Table£¿£¿4].Class Ostracoda Latreille 1806Superorder Myodocopa Sars 1866Order Myodocopida Sars 1866Suborder Myodocopina Sars 1866Family Rutidermatidae Brady and Norman 1866 Composition The Rutidermatidae includes two subfamilies, the Rutidermatinae (with three genera, Alternochelata, Rutiderma, and Scleraner) and the Metaschismatinae (with one genus, Metaschisma). Description Carapace oval in lateral view with male more elongate than female; surface punctate or smooth; prominent ribbing absent in Scleraner, present in most species of Rutiderma; projecting caudal process in some species, absent in others; rostrum generally rounded anteriorly; incisur minute in some species and forming small indentation creating overhanging rostrum in others; rostrum of adult male more prominent than that of adult female and juveniles. First antenna: The third and fourth segments fused in females of some species, separated by suture in adult male; fifth segment long in female and juveniles, small in adult %U http://www.hindawi.com/journals/isrn.zoology/2011/128528/