Pilidium larva of Lineus sp.

Lineus Sowerby, 1806

Nemertea: Anopla: Heteronemertea: Lineidae

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20x Plan Apo / 60x Plan Fluor. DIC. Sampled in Bay of Santander. June, 3rd 2017.

It may be Lineus albocinctus Verrill, 1900.

Pilidium gyrans with pigment spots.

References
Lacalli, T.C. (2005). Diversity of form and behavior among nemertean pilidium larvae. Acta Zoologica, 86: 267-276.
Norenburg, J.L. & Stricker, S.A. (2002). Phylum Nemertea. Chapter 7, Atlas of Marine Invertebrate larvae. Young, C.M., Sewell, M.A., & Rice, M.E. (eds). Academic Press. San Diego, CA.

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