biology world
Thursday 9 February 2012
UROCHORDATA-CLASSIFICATION
Tunicata includes nearly,2000 fixed and 100 pelagic species.In 1891 Herdman classified, Lahille1895, perrier 1898,Hartmeyer 1909-1911and S.M Dass in 1957.The subphylum urochordata is divided into three classes.
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