Sigalioninae

• Main Authors: Barnich, Ruth, Haaren, Ton Van
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Phyllodocida; Sigalionidae; Northeast Atlantic
• Online Access: https://doi.org/10.5281/zenodo.4650733; http://treatment.plazi.org/id/03FC87CE1A3A1649FF7FF652FAB8FDA2

Updated key to the species of Sigalioninae in the Northeast Atlantic and Mediterranean Sea We follow the latest subfamily designation proposed by Gonzalez et al. (2018). For keys to other species currently assigned to the subfamilies Pelogeniinae, Pholoinae and Pisioninae, see Barnich & Fiege (2003), Martinez et al. (2008) and Meissner et al. (2020). Please note: characters in the key apply to adults; in younger individuals or juveniles there is likely some variation to be observed, for example in the number of stylodes present or the degree of coverage with ventral body papillae. Elytral characters apply to anterior elytra (but not the first pair) unless otherwise stated. The distribution given for species not treated in detail herein is based on Barnich & Fiege (2003), Wehe (2007) and Núñez et al. (2015). 1. Median antenna indistinct or very small, without ceratophore. Outer elytral margin extended into digitiform, papillated processes. 2 – Median antenna present, with distinct ceratophore. Outer elytral margin straight, smooth (i.e., papillae absent) or straight, papillated (papillae simple or dichotomously branched). 3 2. Elytral marginal processes with about 20 papillae. Large papilla present on anterior side of superior margin of neuropodia (difficult to see in small individuals). Sigalion mathildae Audouin & Milne Edwards, 1832 (NE Atlantic, Mediterranean; nearshore) – Elytral marginal processes with about 10 papillae. Without papilla on neuropodia. Sigalion squamosus Delle Chiaje, 1830 (NE and SE Atlantic, Mediterranean; nearshore and offshore) 3. Ceratophore of median antenna without auricles. 4 – Ceratophore of median antenna with auricles. 5 4. Outer elytral margin with irregularly dichotomously branched papillae, elytral surface smooth. Euthalenessa oculata (Peters, 1854) (NE Atlantic: south of Channel to S Africa, Mediterranean, Indian Ocean; nearshore and offshore) – Elytral margin and surface smooth. Leanira hystricis Ehlers, 1874 (NE and SE Atlantic, Mediterranean; nearshore and ...