![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLm3spg3hOuKH5AuYKWwpE5g0d7hOVd8aYz4ZwCN5y2WJiDH0W50ThxBW8-92_uN6oaIIgA14n6zD53Uox3JiodHfuZxna3vYgwyaKbur4VHjREcspz7V_AxdervOp8h8bsOefnnS3yPY/s400/1.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzI7CbJGmoxjIXvdZ1XNV3ieOVU466YAqpYhnfhdJX0QZhB-1IWBISX6GfL_nG67f4yd49Oog4tsLfjVtp8_kt2FH_gNMFeE9t981ffEdIZY_-UTPG-w1MjzuXehTtxT6J6nKdmLXziJU/s400/2.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLERnPtWArqzbLXO4iIL5lOEssM8A7nimZ-dDSwrUyy3Y7Ml7al2eB3o4aFiJXXoD_CfggQ_n-dhwRnf7pIZwrKjAjLFTIhIaHhy1An4eGyYMwy-eilYIT2trQGpQjdQczZZ7hVEvRHTY/s400/4.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-7frdm8dJ_2Pbj5I3fBIWxd8XYceX91HA3iu8Hg5E12T8emL2KPWWHkDh3F-epTWGpyEr5VicISZfZ9hSKd6PT32lx9CQhjG06TD1-2gZShv7mJYpc2jpfczLJqa5RmnZrvywSOrguC4/s400/5.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDaMv5W_ABsXl4BdhvvcFe50lFHjxN-kYON2Zl_fMS3kNOpCJuE0FfAix4zTLNbXAC9S8WP3Jnp0bBlCwm3XYo1NS8aCwa9x1kyZjXYP17lysPkKFpj4YMFRYTccRywdrVgGqttSkWl4U/s400/6.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoiG_pawF4jSmiQwm0NFZYbtJDjsX1BkE-u17I1zc0UiUQTCaBYzHHM3Nh61OBX4OrYKXaEa9Sx5PwXUq7TxQdPHgYuUa9PD57FTv8I6fPiR_ECQ-6eS2TbAZ6zGDo0eyYuMaT5u3ZvsE/s400/7.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPq3gF4gV-dA7gLYGejw4wCptg9sI8AQ48jJlGjP0U0sdYHkj0uXGi7oNofYAmqDj3rmaQnTCLttSUQL0L5OztUVswp7k5YtCpvuomMa8xVT1lgdinEMFMT9FjRda-ledf7crT0AVQRPw/s400/8.jpg)
L'elcion vivente, da qui
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsKtqMirf3VKmZstbszUS-lWo1yKGUFeqCajMzi3f0WdsGJwac4BX81RhAngeRkGHfhFyL1jzcrsVbB-F8F2m_DPcSg8VigbGZpBKNqqi4mQAsR6PxSrTaU_2e0ltJtgczJPg0EOSUbY8/s400/formes_de_vie_sur_l_estran_zoom720.jpg)
Helcion pellucidum, o Patina pellucida, o Patella pellucida, ovvero trasparente. Fino a due centimetri. Nelle foto c'è anche l'altro tipo, quello più spesso, gobbuto e opaco, la cosidetta laevis. Vive in acque mosse e ossigenate, spesso attaccata a lunghe alghe fluttuanti, oppure su rocce, fino a 30 metri di profondità. Si trova dall'Islanda alla Norvegia, fino al Portogallo.
Se volete saperne di più, ecco marlin.
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