Three new species of Diplocirrus Haase, 1915 (Polychaeta: Flabelligeridae) from Campos Basin in SE Brazil Author Teixeira, Juliana Henrique Author Rizzo, Alexandra Elaine Author Santos, Cinthya Simone Gomes text Zootaxa 2015 4027 2 287 295 journal article 10.11646/zootaxa.4027.2.8 8dcb1038-d556-49c8-8649-50202fa770f6 1175-5326 236450 9096376A-C64F-46D7-8E75-55B56E495A4F Key to the species Diplocirrus Haase, 1915 (modified from Salazar-Vallejo & Buzhinskaja, 2011 ) 1. Body papillae abundant............................................................................................................................................. 2 - Body papillae scarce, long, tunic looks bare .......................................................... Diplocirrus sp. from Sri Lanka (*) 2(1). Body papillae short, giving a velvety appearance..................................................................................................... 3 - Body papillae long, giving a hirsute appearance. ................................................................................................... 13 3(2). Body without sand particles ......................................................................................................................................4 - Body with sand particles ........................................................................................................................................... 9 4(3). Ventrolateral gonopores present in some anterior chaetigers.................................................................................... 5 - Ventrolateral gonopores absent ................................................................................................................................. 7 5(4). First chaetiger with long chaetae, about half as long as body width; caruncle posteriorly expanded ........................ ................................................................................................................. D. erythroporus Gallardo, 1968 ( Vietnam ) - Anterior end with short chaetae, 1/3–1/5 as long as body width; caruncle posteriorly tapering .............................. 6 6(5). Median chaetigers with neurochaetae tapering, 22–25 articles, and tip delicately falcate; cirriform branchiae with lamellae along basal ¼–1/5 of each filament ........................................... D. branchiatus ( Rullier, 1965 ) ( Australia ) - Median chaetigers with neurochaetae barely tapering, 8–11 articles, and tip markedly falcate; cirriform branchiae with lamellae along basal 1/3–1/2 of each filament ................................................................................................... .................................................................................... D. nicolaji ( Buzhinskaja, 1994 ) (Northwestern Sea of Japan )