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The sea pens' ability to be clumped together and spatially unpredictable hinders sea stars' predation abilities. [9] When touched, some sea pens emit a bright greenish light; this is known as bioluminescence. They may also force water out of their bodies for defence, rapidly deflating and retreating into their peduncle.
The name "Anthozoa" comes from the Greek words άνθος (ánthos; "flower") and ζώα (zóa; "animals"), hence ανθόζωα (anthozoa) = "flower animals", a reference to the floral appearance of their perennial polyp stage. [1] Anthozoans are exclusively marine, and include sea anemones, stony corals, soft corals, sea pens, sea fans and ...
Phylum: Cnidaria: Class: ... Family: Renillidae Gray, 1870: Genus: Renilla Lamarck, 1816: Renilla is a genus of sea pen. ... Sea pansy is a common name for species in ...
Renilla muelleri (also spelled R. mulleri or R. müilleri) is a species of sea pansy.It has been reported from the Gulf Coast of the United States, notably the Florida panhandle, [2] but is also reported from the eastern coast of South America. [3]
The garden pansy (Viola × wittrockiana) is a type of polychromatic large-flowered hybrid plant cultivated as a garden flower. [2] It is derived by hybridization from several species in the section Melanium ("the pansies") [3] of the genus Viola, particularly V. tricolor, a wildflower of Europe and western Asia known as heartsease.
Aiptasia is a widely distributed genus of temperate and tropical sea anemones of benthic lifestyle typically found living on mangrove roots and hard substrates. These anemones, as well as many other cnidarian species, often contain symbiotic dinoflagellate unicellular algae of the genus Symbiodinium living inside nutritive cells.
Sand dollars (also known as sea cookies or snapper biscuits in New Zealand and Brazil, or pansy shells in South Africa) are species of flat, burrowing sea urchins belonging to the order Clypeasteroida. Some species within the order, not quite as flat, are known as sea biscuits. Sand dollars can also be called "sand cakes" or "cake urchins". [2]
A salp (pl.: salps, also known colloquially as “sea grape”) or salpa (pl.: salpae or salpas [2]) is a barrel-shaped, planktonic tunicate in the family Salpidae. It moves by contracting, thereby pumping water through its gelatinous body; it is one of the most efficient examples of jet propulsion in the animal kingdom. [ 3 ]