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Renilla reniformis, the sea pansy, is a species of soft coral in the family Renillidae. [1] It is native to warm continental shelf waters of the Western Hemisphere. [ 2 ] [ 3 ] It is frequently found washed ashore on North East Florida beaches following northeasterly winds or rough surf conditions.
Sea pansy is a common name for species in this genus. Species. The following species are recognized: [1] Renilla amethystina Verrill, 1864;
This list of marine gastropod genera in the fossil record is an attempt to list all the genera of sea snails or marine gastropod mollusks which have been found in the fossil record. Nearly all of these are genera of shelled forms, since it is relatively rare for gastropods without a shell ( sea slugs ) to leave any recognizable traces.
A number of sea anemone species are commensal with other organisms. Certain crabs and hermit crabs seek out sea anemones and place them on their shells for protection, and fish, shrimps and crabs live among the anemone's tentacles, gaining protection by being in close proximity to the stinging cells.
This list follows the Society's taxonomy regarding and subspecies. Conservation status codes listed follow the IUCN Red List of Threatened Species (v. 2014.3; data current at 19 January 2015 [2]) and are clickable to link to IUCN Red List species pages.
The GFP from the sea pansy (Renilla reniformis) has a single major excitation peak at 498 nm. GFP makes for an excellent tool in many forms of biology due to its ability to form an internal chromophore without requiring any accessory cofactors , gene products, or enzymes / substrates other than molecular oxygen.
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.
Wentletraps are small, often white, very high-spired, predatory or ectoparasitic sea snails, marine gastropod mollusks in the family Epitoniidae. [1] The word wentletrap originated in Dutch (wenteltrap), and it means spiral staircase. These snails are sometimes also called "staircase shells", and "ladder shells".