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Introduction to the Urochordata, with photos. ... The Urochordata, sometimes known as the Tunicata, are commonly known as "sea squirts." The body of an adult tunicate is quite simple, being essentially a sack with two siphons through which water enters and exits.
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www.ucmp.berkeley.edu/chordata/urochordata.html
www.ucmp.berkeley.edu/chordata/urochordata.html
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With about twenty-five species inhabiting shallow tropical and temperate oceans, the Cephalochordata are a very small branch of the animal kingdom. ... The anatomy of a cephalochordate is diagrammed at left. Note that cephalochordates have all the typical chordate features. ... Water is taken in through the mouth, drawn in by...
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www.ucmp.berkeley.edu/chordata/cephalo.html
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The tunicates are marine, filter-feeding animals. The most prominent tunicates are the sea squirts (class Ascidiacea), which show affinities to other chordates only in the juvenile stage. Adult sea squirts are sessile ... many kinds grow in colonies. ... The sea squirt larva is a free-swimming animal resembling a tadpole.
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www.infoplease.com/ce6/sci/A0857330.html
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pelagic tunicates; Appendicularia ; ... Home Kingdom Animalia Phylum Chordata Subphylum Urochordata ... Subphylum Urochordata; (sea squirts and tunicates)
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animaldiversity.ummz.umich.edu/site/accounts/pictures/U...
animaldiversity.ummz.umich.edu/site/accounts/pictures/Urochordata.html
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Phylum Chordata (chordates) ... Subphylum Urochordata (sea squirts and tunicates) ... Home Kingdom Animalia Phylum Chordata Subphylum Urochordata...
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animaldiversity.ummz.umich.edu/site/accounts/informatio...
animaldiversity.ummz.umich.edu/site/accounts/information/Urochordata.html
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Urochordata. Tunicates. Version 10 January 2008 (temporary). http://tolweb.org/Urochordata/14821/2008.01.10 in The Tree of Life Web Project, ...
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tolweb.org/urochordata/14821
tolweb.org/urochordata/14821
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An introduction to the biology, classification and ecology of Sea Squirts, Tunicates, Salps and Larvaceans, the subphylum Urochordata ... Characteristics of Urochordata:-; 1)Possesses a Notochord,a hollow nerve cord and a post anal tail. 2)Body has more than two cell layers and includes tissues and organs. 3)Has a U shaped...
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www.earthlife.net/inverts/urochordata.html
www.earthlife.net/inverts/urochordata.html
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Subphylum Urochordata (tunicates) ... One of the classes of the subphylum Urochordata , the Appendicularians (also known as Larvacea ) comprise about 70 species of highly specialized urochordates . They retain many larval features, including a muscular tail, a notochord , as well as a hollow dorsal nerve...
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Unit: Chordata introduction ... 4 Subphylum Urochordata ... The urochordates, more commonly called tunicates, are mostly sedentary animals that live on the sea bed, and obtain their food by passing a current of water through the body. Like most sedentary marine animals, the tunicates have planktonic larvae which float in the...
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orion1.paisley.ac.uk/courses/Tatner/biomedia/units/chor...
orion1.paisley.ac.uk/courses/Tatner/biomedia/units/chor4.htm
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