On the genus Raphidrilus Monticelli, 1910 (Polychaeta: Ctenodrilidae) with description of two new species Author Magalhães, Wagner F. Author Bailey, Julie H. Author Brock, - Author Davenport, Jennifer S. text Zootaxa 2011 2804 1 14 journal article 10.5281/zenodo.277061 f298d254-83b1-43bb-9f8d-a4a7d984ebcc 1175-5326 277061 Key to genera of Ctenodrilidae (After Petersen & George 1991 and Dean 1995 ) 1A With long bodies (up to c. 35 segments); with filamentous branchiae (subfamily Raphidrilinae )...................... 2A 1B With short bodies (up to c. 15 segments); without branchiae (subfamily Ctenodrilinae )............................. 3A 2A Anterior segments distinct dorsally; 1–2 anterior and dorsally biannulate achaetous segments; indistinct posterior end; serrated capillaries throughout.......................................................................... Raphidrilus 2B Anterior segments indistinct dorsally; distinct posterior end with 1–2 modified posterior segments; chaetae may include serrate and coarsely serrate capillaries, pectinate falcigers, and simple curved spines............................... Raricirrus 3A All chaetae coarsely serrate..................................................................... Ctenodrilus 3B With capillaries in addition to serrate forms...................................................... Aphropharynx