Four new species of Cymadusa Savigny, 1816 (Amphipoda: Ampithoidae) and new records of C. filosa Savigny, 1816 from Brazilian coast Author Andrade, Luiz F. Author Senna, André R. text Zootaxa 2017 4226 3 359 389 journal article 37257 10.11646/zootaxa.4226.3.3 bfd91dba-b0f0-4724-9c55-8b5ecd35ee67 1175-5326 264030 77706FC2-88CF-48BD-9FA4-12F7DE1451B7 Genus Cymadusa Savigny, 1816 Composition of the genus. Including the new described species, the genus Cymadusa groups 53 species: C. alyxis Hughes & Lowry, 2009 ; C. aungtonyae Peart, 2002 ; C. botulus Hughes & Peart, 2013 ; C. brevidactyla ( Chevreux, 1907 ) ; C. cavimana ( Sivaprakasam, 1970 ) ; C. chalongana Peart, 2002 ; C. chuawe Peart, 2007 ; C. compta ( Smith, 1873 ) ; C. crassicornis ( Costa,1857 ) ; C. drummondae Hughes & Peart, 2013 ; C. elegantis Peart, 2007 ; C. euclidius Hughes & Peart, 2013 ; C. excavata Thanh & Ahn, 2012 ; C. filosa Savigny, 1816 ; C. grossimana Ledoyer, 1984 ; C. hadros Hughes & Peart, 2013 ; C. hallex Hughes & Peart, 2013 ; C. hawaiensis ( Schellenberg, 1938 ) ; C. hentyana Hughes & Peart, 2013 ; C. heronensis Peart, 2007 ; C. herrerae Ortiz & Winfield, 2015 ; C.hoeyae Hughes & Lowry, 2009 ; C. icapui sp. nov. ; C. imbroglio Rabindranath, 1972 ; C. jiigurru Peart, 2007 ; C. jubata Hughes & Peart, 2013 ; C. khbarnardi Hughes & Lowry, 2009 ; C.ledoyeri Peart, 2004 ; C. lituus Peart & Hughes, 2014 ; C. lumanus Hughes & Peart, 2013 ; C. lunata Myers, 1985 ; C. mariabyrneae Hughes & Lowry, 2009 ; C.microphthalma ( Chevreux, 1901 ) ; C. munnu Poore & Lowry, 1997 ; C. oceanica J.L. Barnard, 1955 ; C. panwa Peart, 2002 ; C. paradisaea Peart & Hughes, 2014 ; C. pathyi Asari, 1998 ; C. peartae Andrade & Senna, 2013 ; C. pemptos Peart, 2007 ; C. platys Hughes & Peart, 2013 ; C.priscileo Hughes & Peart, 2013 ; C. rasae sp. nov. ; C. setosa ( Haswell, 1879 ) ; C. smilodonta Hughes & Lowry, 2009 ; C. tartarugae sp. nov. ; C. tattersalli Peart, 2004 ; C. thagaay Peart, 2007 ; C. tishana Peart, 2007 ; C. trindadensis sp. nov. ; C. uncinata ( Stout, 1912 ) ; C.vadosa Imbach, 1967 ; C. wistari Peart, 2007 . Remarks. The species C. smilodonta seems to have an absent accessory flagellum on Antenna 1. However, we did not add this information to create a new amended diagnosis because this structure is very fragile and could have been lost during the material manipulation. Otherwise, we decided to add the absence of accessory flagellum as a valid character on the identification key to world species of Cymadusa .