| 31. | Sea cucumbers were important commercial product produced in the province.
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| 32. | These sands have been colonized by, among others, sea cucumbers.
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| 33. | Sea cucumbers are marine invertebrates and are closely related to sea urchins and starfish.
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| 34. | Other creatures in this group are urchins and sea cucumbers.
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| 35. | One of the main economic activities on the island is the sea cucumber fishery.
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| 36. | Related animals include other sea urchins, sea cucumbers, and starfish.
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| 37. | It has been observed to cause skin ulcer syndrome in juvenile cultivated sea cucumbers.
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| 38. | The biggest problem today is the illegal fishing of pepino de mar or sea cucumbers.
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| 39. | Sea cucumbers were exported from the province and were an important factor in its economy.
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| 40. | Certainly, complicated nervous machinery is not needed for concourse with jellyfish, sea cucumbers and sponges.
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