Proceraea madeirensis

• Main Author: Nygren, Arne
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2004
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Phyllodocida; Syllidae; Proceraea; Proceraea madeirensis; North East Atlantic
• Online Access: https://doi.org/10.5281/zenodo.6273184; http://treatment.plazi.org/id/03CDB626CC404E1FFEE87B858BE8849D

Proceraea madeirensis nom. n. (Fig. 15A–B) Proceraea fasciata Langerhans, 1879: 581, fig. 33A–C. Junior homonym of Nereis fasciata Bosc, 1802. ? Autolytus (Proceraea) fasciata Augener 1913: 264 –265. ? Proceraea fasciata Westheide 1974: 323 –325, figs 61–62; Hartmann­Schröder 1987: 44 –45, figs 20–22. Material examined . Madeira : holotype NHMW 2512. Diagnosis . Proceraea with brown intrasegmental bands; antennae, dorsal tentacular cirri, and first dorsal cirri brown. Description . Holotype on slide, in poor condition, dried, length 4.2 mm for 35 chaetigers, width 0.7 mm (compressed specimen). Preserved material brown, no colour markings. Live specimens with brown intrasegmental bands, as well as brown antennae, dorsal tentacular cirri and first dorsal cirri (Langerhans 1879). Ciliation not possible to assess. Eyes faded, not seen. Palps in dorsal view projecting 1/3 of prostomial length (Fig. 15A), fused. Nuchal epaulettes extending to beginning of first chaetiger. Anterior appendages curled, not evaluated. Dorsal cirri from chaetiger 3, of equal length, 1/5–1/4 of body width. Cirrophores on tentacular segment and first dorsal cirri not possible to assess, cirrophores on other cirri absent. All appendages cylindrical. Parapodial lobes small. Aciculae not seen. Chaetal fascicle with 6–7 compounds in anterior chaetigers, 4–5 in median and posterior. Compound chaetae in median chaetigers with large distal tooth (Fig. 15B), anterior chaetigers not possible to examine; serration present. Single thick bayonet chaetae, (Fig. 15B), beginning at chaetiger 20. Pharynx with sinuation anterior to proventricle (Fig. 15A). Trepan in chaetiger 4 (Fig. 15A) with 18 unequal teeth, 9 large and 9 smaller; 1 large alternating with 1 small, arranged in 2 rings. Basal ring present; infradental spines absent. Proventricle equal in length to 3–4 segments in chaetigers 7–10, with 55–60 rows of muscle cells. Pygidium with 2 anal cirri. Reproduction . Unknown. Habitat . Intertidal, amongst algae. Distribution . North East Atlantic. ...