Search results
Results from the WOW.Com Content Network
Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. [2] Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose .
A multi-taxon molecular study in 2010 proposed that sea squirts are descended from a hybrid between a chordate and a protostome ancestor (before the divergence of panarthropods and nematodes). This study was based on a quartet partitioning approach designed to reveal horizontal gene transfer events among metazoan phyla. [37]
Ciona intestinalis (sometimes known by the common name of vase tunicate) is an ascidian (sea squirt), a tunicate with very soft tunic. Its Latin name literally means "pillar of intestines", referring to the fact that its body is a soft, translucent column-like structure, resembling a mass of intestines sprouting from a rock. [1]
Woods Hole Oceanographic Institute describes sea squirts as, “Sea squirts belong to the phylum Chordata, which includes all animals with a spinal cord, a supporting notochord (backbone), and ...
Tunicates: sea squirts. The tunicates have three distinct adult shapes. Each is a member of one of three monophylitic clades. All tunicate larvae have the standard chordate features, including long, tadpole-like tails. Their larva also have rudimentary brains, light sensors and tilt sensors. [28]
Herdmania momus found in Makadi Bay, Hurghada, Red Sea, Egypt Herdmania momus found in Makadi Bay, Hurghada, Red Sea, Egypt. The solitary ascidian Herdmania momus is one of the most commonly encountered species of ascidians. While commonly referred to simply as sea squirts, this name is ambiguous, as it can refer to any member of the sub-phylum ...
Pyura stolonifera, commonly known in South Africa as "red bait" (or "rooiaas" in Afrikaans), is a sessile ascidian, or sea squirt, that lives in coastal waters attached to rocks or artificial structures. [1] Sea squirts are named for their habit of squirting a stream of water from their exhalant siphons when touched at low tide.
A photo of a mysterious sea creature caught off the coast of Australia last week is going viral. ... Dr. Fromont told WA Today identified the obscure creature as either "an ascidian or sea squirt."