I found this red seaweed on the beach at low tide and believe it is Chondracanthus corymbiferus, about 3' across the clump of fronds. However these fronds were ruffled more than Chondracanthus exasperatus aka Turkish Towel, and the texture wasn't as rough.
It was active and did not want to leave my thumb. I found it floating at the surface of the water at low tide in a tide pool.
Lives in the water. Pointed at both ends; carnivorous.