Synelmis, Chamberlin, 1919

Ribeiro, Rannyele Passos, Barbosa, Aline Da Cruz, Freitas, Roberta, Zanol, Joana, Glasby, Christopher J. & Ruta, Christine, 2020, Pilargidae (Annelida: Phyllodocida) from coastal and deep waters of the Southwestern Atlantic, with descriptions of two new species, Zootaxa 4878 (1), pp. 56-76 : 73

Key to species of Synelmis found in Brazilian waters

1. Lateral antennae located on anterior margin of prostomium................... Synelmis amoureuxi Salazar-Vallejo, 2003

- Lateral antennae located in the middle of prostomium........................................................ 2

2. Tentacular segment prominent; dorsal cirri longer in anterior chaetigers; notopodial spines from chaetiger 17–22................................................................................. Synelmis sotoi Salazar-Vallejo, 2003

- Tentacular segment short; all dorsal cirri similar in length to tentacular cirri; notopodial spines from chaetiger 10.................................................................................. Synelmis albini ( Langerhans, 1881)