First occurrence of Perkinsyllis San Martín, López & Aguado, 2009 (Polychaeta: Syllidae) in Brazil, with descriptions of two new species

Abstract

Perkinsyllis is recorded for the first time in Brazilian waters with three species, two of which are new to science. Perkinsyllis longisetosa has unidentate dorsal simple chaetae, with coarse spinulation; bidentate blades of falcigers, with a rounded distal tooth and coarse spines; and spiniger-like dorsal-most compound chaetae. Perkinsyllis koolalyoides sp. nov. has dorsal simple chaetae unidentate on anterior-most chaetigers, bidentate to distally bifid on remaining chaetigers, with distal-most spine reaching beyond level of subdistal tooth; compound chaetae as falcigers with bidentate blades with long spines, distal-most spines reaching beyond the level of the subdistal tooth; spiniger-like chaetae absent. Perkinsyllis biota sp. nov. has dorsal simple chaetae unidentate on anterior-most chaetigers and distally bifid, with short spinulation on remaining chaetigers; bidentate blades of falcigers with long spines, distal-most spines reaching beyond level of subdistal tooth; and 1–5 spiniger-like dorsal-most compound chaetae, bidentate, with short spinulation. We present a key to all described species of Perkinsyllis, including an Australian species referred to this genus for the first time.

Keywords:

• Syllidae
• Perkinsyllis
• new species
• new occurrence
• Brazil

Published in collaboration with the Institute of Marine Research, Norway

Published in collaboration with the Institute of Marine Research, Norway

Acknowledgements

We thank the collection teams of both projects ‘REVIZEE/South Score/Benthos’ and ‘BIOTA/FAPESP/Benthic marine biodiversity’ for collecting part of the material. We are also thankful to the Brazilian energy company Petrobras, namely Ana Paula Falcão (CENPES/PETROBRAS) and Prof. Dr. Helena Lavrado (Universidade Federal do Rio de Janeiro), on behalf of both collection and sorting teams of the Habitats Project. We are also grateful to Nilcea Aparecida Veronesi for providing accommodation in Praia Grande, and to Enio Mattos and Phillip Lenktaitis, from the Departamento de Zoologia, IB–USP, for preparing specimens for the SEM study and for operating the SEM equipment. We are thankful to Dr. Angelika Brandt, on behalf of the staff of the ZMH, for all the support provided during a stay of MVF in the ZMH. We also thank Dr. Aline S. Benetti (MZUSP) and Dr. Tatiana M. Steiner (ZUEC) for providing museum numbers. The project ‘BIOPOL’ was funded by FAPESP – Fundação de Amparo à Pesquisa do Estado de São Paulo (proc. 04/02774-4); MVF received a Ph.D. fellowship from FAPESP (proc. 2007/53040-9) and currently receives a post-doctoral fellowship from the same institution (proc. 2010/19424-7); JMMN receives a productivity fellowship from CNPq – Conselho Nacional de Desenvolvimento Científico e Tecnológico. Finally, we thank Dr. Guillermo San Martín for suggesting the reassignment of P. heterochaetosa comb. nov., and for important suggestions, along with an anonymous referee.

Notes

Published in collaboration with the Institute of Marine Research, Norway