Pilidium auriculatum larva of Hubrechtella spp. Morphotype I

Nemertea: Paleonemertea: Hubrechtidae

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20x Plan Apo / 40x Plan Fluor. DIC. Sampled in Bay of Santander. April, 30th 2017.

Diagnostic features
Pilidium auriculatum is shaped like a roman helmet. Their epidermal cell outlines are conspicuous with large cell nuclei.



Chernyshev 2001

Chernyshev (2001)


Chernyshev, A.V. (2001). The Larvae of Unarmed Nemerteans in Peter the Great Bay (Sea of Japan). Russian Journal of Marine Biology. Vol. 27, No. 1: 58-61. (see Fig. 1).
Lacalli, T.C. (2005). Diversity of form and behavior among nemertean pilidium larvae. Acta Zoologica, 86: 267-276.
Larink, O. & Westheide, W. (2011). Coastal plankton. Verlag Dr. Friedrich Pfeil. München. (see Plate 33).
Maslakova, S.A. & Hiebert, T.C. (2014). From trochophore to pilidium and back again- a larva’s journey. Int. J. Dev. Biol. 58: 585-591
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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