Give the characteristics of the following with examples :
Sub phylum Urochordata

Explanation

(i)Urochordates are marine animals
(ii)Their body is covered by skin-like test or tunic .
(iii)These animals are hermaphrodites.
Notochord is present in only tail region of larvae
(v)e.g. Herdmania , Doliolum , Oikopleura , etc.