Seanet Mid Intertidal

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Nereis grubei (Kinberg, 1866)
Phylum Annelida, Class Polychaeta, Order Phyllodocida, Family Nereidae

Segmented worm, to 100 mm long; often bright green/blue-green with large prostomial palps & eversible proboscis with jaws.  

Common but cryptic; builds mucus tubes in algal fronds, holdfasts, or mussel beds in mid-intertidal to subtidal zones; omnivorous.  Individual in photo is becoming  reproductive (epitokous) as evidenced by it's pinkish posterior end and enlarged eyes on head.

Geo Range: British Columbia to Mexico; Peru
Similar species: numerous spp. of mobile "errant" polychaetes live on rocky shores, but most are cryptic, small, or both.