Night diving in Man O' War Bay, Tobago
Night diving in Man O' War Bay
Hundreds of Metridium senile (Short Plumose Anemone) were feeding in the swift-flowing waters of the cut, aka Portage Canal. These are a few feet underwater, and the morning was gloomy, so not a great photo. But I was surprised to see so many!
This 3" wide and 3" tall anemone was under water at low tide, living among hundreds of Metridium senile. It's a peachy-beige color, with white bands on its many, short tentacles. I'm not sure what it is!
More views of 2044580. A reasonable length stalk and the stripes are often broken up.
Unusual for rockpool anemones in that most want a clear area but this grows amongst seaweed.
The skeleton of a sea fan or sea whip (formerly Gorgonacea, now Alcyonacea and probably in the suborder Holaxonia) was attached to a ponderous ark shell and had washed up on the beach along W. Gulf Drive on Sanibel Island. I'm not sure if a skeleton like this can be identified to a lower taxon but I'd be interested in opinions.
Cnidaria (/naɪˈdɛəriə/ with a silent c) is a phylum containing over 10,000species of animals found exclusively in aquatic and mostly marine environments. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. They have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths...