Osedax rubiplumus

Osedax rubiplumus is a species of bathypelagic Polychaetes that is reported to sustain itself on the bones of dead whales.

Description
Their paedomorphic males are 0.4 - 1.1 mm, and have an incompleted prototroch with a posterior hooked chaeta. The species have 16 hooks with 6-8 capitium teeth, which have handles that are 18 - 23 um. The female ovisac is measured 8 mm by 4 mm by 0.3 mm, with four posterior roots which have spherical lobes. They also have a trunk which is 3.8 cm in length and 2 mm wide with the crown plumes which are 2.1 cm in length. The species is found in East North Pacific where it is abundant. They are used in Calmodulin.