reaches lengths of 12 cm with 200 or more body segments. The front region of the body is swollen and sharply pointed, giving the head a cone-shaped appearance. The eyes are not easily detectable. Gills occur dorsally from segments 9 to 17 onwards and the tip of the posterior has 2 long cirri. Scoloplos armiger
is red or reddish brown in colour, and has prominent red blood vessels running down the length of the body.