Metatrochophore larva of Nepthys

Nepthys Cuvier, 1817

Annelida: Polychaeta: Phyllodocida: Nepthyidae

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The images were taken at different levels of focus.
40x Plan Fluor / 60x Plan Fluor. DIC. Sampled in Bay of Santander. June, 3rd 2017.

 

Fewkes 1883
Fewkes (1883)

References
Claparède, E. & Mecznikow, E. (1869). Beiträge zur Kenntnis der Entwicklungsgeschichte der Chaetopoden. Zeitschrift für Wissenschaftliche Zoologie. Verlag von Wilhelm Engelmann. Leipzig. (Tag. XV).
Fewkes, J.W. (1883). On the developmental stages of certain worm larvae. Bull. Mus. Comp. Zool. 11(9): 167–208. (see Pl. IV).
Plate, S. & Husemann, E. (1994). Identification guide to the planktonic polychaete larvae around the island of Helgoland (German Bight). Helgoländer Meeresunters, 48, 1-58.

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