La danseuse espagnole est un mollusque nudibranche de grande taille, couramment de l'ordre de 20 à 30 cm de long. Il passe la journée à l'abri de la lumière et sort la nuit pour s'alimenter. Au repos, les bords de son manteau sont enroulés sur eux-mêmes créant ainsi une boursouflure périphérique. Si l’animal est perturbé, il déroule ses bords et peut nager par contractions et ondulations du corps afin de s'éloigner de l'élément perturbateur. C'est ce moyen original de défense qui lui vaut son nom vernaculaire de danseuse espagnole. Photographies prises en Mer Rouge.
English:
The Spanish dancer is a large nudibranch mollusc, commonly around 20 to 30 cm long. It spends the day sheltered from light and comes out at night to feed. When resting, the edges of its mantle are rolled up on themselves, creating a peripheral swelling. If the animal is disturbed, it unrolls its edges and can swim by contractions and undulations of the body in order to move away from the disturbing element. It is this original means of defense that gives it its vernacular name of Spanish dancer. Photographs taken in the Red Sea.
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Captions
The Spanish dancer is a large nudibranch mollusc, commonly around 20 to 30 cm long. It spends the day sheltered from light and comes out at night to feed.
La danseuse espagnole est un mollusque nudibranche de grande taille, couramment de l'ordre de 20 à 30 cm de long. Il passe la journée à l'abri de la lumière et sort la nuit pour s'alimenter.