
Water-soluble photosynthetic pigments found in the cytoplasm, or in the stroma of the chloroplast. There are two classes of phycobilins and they occur only in Cyanobacteria and Rhodophyta. The bluish pigment phycocyanin is found in Cyanobacteria and gives them their common name of 'blue-green algae'...
Found on 
http://www.daviddarling.info/encyclopedia/P/phycobilin.html

Photosynthetic pigments found in certain algae, especially red algae (Rhodophyta) and cyanobacteria.
Found on 
http://www.encyclo.co.uk/visitor-contributions.php
  No exact match found.