ADAM HANLON PHOTOGRAPHY

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The white sacks at the ends of this nudibranch's cerata are cnidosacks. The darker areas are digestive canals. These nudibranchs feed on hydriods, which have stinging cells. These are processed by the nudibranch, passed through the disgestive canals and end up in the cnidosacks. This presents an unpleasant suprise for any would-be predator.

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The white sacks at the ends of this nudibranch's cerata are cnidosacks. The darker areas are digestive canals. These nudibranchs feed on hydriods, which have stinging cells. These are processed by the nudibranch, passed through the disgestive canals and end up in the cnidosacks. This presents an unpleasant suprise for any would-be predator.