Biddulphiales
Biddulphiaceae
Family of single-celled organisms
Biddulphiaceae is a family of diatom, the only family in the order Biddulphiales.[1] The Biddulphiaceae are distinguished from the Eupodiscaceae by their pseudocelli, where the Eupodiscaceae have fully developed ocelli.[2] Both families commonly inhabit the littoral zone of the ocean, close to the shore.[3] Sixteen species of Biddulphiaceae are found on the west coast of India.[4]