Has cylindrical and firm body divided into two regions: thorax and abdomen. The head is small and has no appendages or eyes. Has a rough proboscis that is usually visible. The thoracic region possesses 19 parapodia with chaetae, some of them bearing arborescent gills. Abdominal region is narrow and lacks chaetae and gills. Body segments are divided into five rings (annuli). Reaches between 4.7-7.8 in (120-200 mm) in length and varies in color from pink to dark pink, red, green, dark brown, or black.
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