Biddulphiaceae is a family of
diatom
A diatom (Neo-Latin ''diatoma'') is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of Earth's B ...
, the only family in the order Biddulphiales. The Biddulphiaceae are distinguished from the
Eupodiscaceae by their pseudocelli, where the Eupodiscaceae have fully developed
ocelli
A simple eye or ocellus (sometimes called a pigment pit) is a form of eye or an optical arrangement which has a single lens without the sort of elaborate retina that occurs in most vertebrates. These eyes are called "simple" to distinguish the ...
. Both families commonly inhabit the
littoral zone
The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely flood ...
of the ocean, close to the shore. Sixteen species of Biddulphiaceae are found on the west coast of
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
.
Genera
*† ''
Alveoflexus'' -
N.I. Hendey & P.A. Sims, 1984
*† ''
Ancoropsis'' -
N.I. Hendey & P.A. Sims, 1984
*''
Arcusidiscus'' -
S.Komura, 2008
*''
Biddulphia'' -
S.F. Gray, 1821
*''
Biddulphiopsis'' -
H.A. von Stosch & R. Simonsen, 1984
*† ''
Donskinica'' -
Strelnikova & Kozyrenko
*† ''
Euodiella'' -
P.A. Sims, 2000
*† ''
Fenneria'' -
J.Witkowski, 2018
*''
Hydrosera'' -
G.C. Wallich, 1858
*''
Isthmia'' -
C. A. Agardh, 1832
*† ''
Medlinia'' -
P.A. Sims, 1998
*''
Neohuttonia'' -
O. Kuntze, 1898
*''
Pseudotriceratium'' -
A. Grunow, 1884
*''
Stoermeria'' -
J.P. Kociolek, L. Escobar & S. Richardson, 1996
*''
Terpsinoë
''Terpsinoë'' is a genus of diatom
A diatom (Neo-Latin ''diatoma'') is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms mak ...
'' -
C.G. Ehrenberg, 1843
*''
Trigonium'' -
P.T. Cleve, 1867
Gallery
File:Biddulphia rigida - Oamaru (New Zealand) - 630x, Planapochromat, Bright field, Photonegative.jpg, ''Biddulphia rigida''
File:Biddulphia pulchella a t.jpg, ''Biddulphia pulchella''
File:Marine plankton - Odontella sp ( = Biddulphia sp) - 250x (14811152768).jpg, ''Biddulphia'' sp.
References
Diatom families
Taxa described in 1844
Taxa named by Friedrich Traugott Kützing
Coscinodiscophyceae
{{Diatom-stub