Platynereis dumerilii is a small marine ragworm: Males reach a length of 2 to 3 cm, while females reach a length of 3 to 4 … See more

Platynereis dumerilii larvae possess two kinds of photoreceptor cells: Rhabdomeric and ciliary photoreceptor cells.
The ciliary photoreceptor cells are located in the deep brain of the larva. They are not shaded by … See more

Platynereis dumerilii builds tubes on its substrate. The substrate may be algae-covered hard bottoms, sea grass, pelagic Sargassum rafts in the Sargasso Sea, or even rotting plant debris. Platynereis dumerilii co… See more

Platynereis dumerilii is dioecious, that means it has two separate sexes. Changes in light are importantly linked to reproduction. The bristle worm is originally found in the Bay of Naples, where it displays … See more

The genome of Platynereis dumerilii is diploid (2n chromosomes) with a haploid set of n = 14 chromosomes. It contains approximately 1 Gbp (giga base pairs) or 10 base pairs. This genome size is close to the average observed f… See more

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