Marine Biology (2+1)

12.Genus: Thalassiothrix - Diatom

                                                                                               

Minor Phylum : Bryozoa

Class : Gymnolaemata

Order : Cheilastomata

Description: The cyphonautes of Membranipora membranacea is identified by its transparency and symmetrical shape. The posterior margin of the oral edge bears a rounded protuberance. The length of the oral edge is 0.7mm. This triangular ‐ shaped larva

is enclosed within a small bivalve shell. The larva starts as a trochophore but with the underside tucked upinside like a little bell. Then it becomes flattened sideways and develops minute three  corner shells on each side.