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Ofiura lisa (Ophioderma longicauda), Parque natural de la Arrábida, Portugal, 2020-07-31, DD 50
2020-07-31
- Classification
- Photograph
- Museum
- Wikimedia Commons
- Rights
- CC BY-SA 4.0, as the museum states it.
- Who can see it
- Teens profiles and older: its museum says too little about what it shows to place it for younger viewers. How works are placed
About this work
Smooth brittle-star (Ophioderma longicauda), Arrábida National Park, Portugal. It's a species of brittle stars, echinoderms, closely related to starfish. Like most brittle stars, this species are formed from a central disc around which radiate 5 elongated and tapered arms. The rigid, pentagonal central disc measures 3 cm in diameter on average with the mouth in the lower side. The arms are vigorous, round in section and relatively long, reaching up to 15 cm. Along the arms, on either side, are rows of scales that have taken the form of quills, folded down along the arms. Note: there is only this FP of this class of animals but where the brittle stars plays a secondary role.
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