''Leuconia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of calcareous sponges in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Baeriidae. It was described by English

anatomist Anatomy () is the branch of morphology concerned with the study of the internal structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old scien ...

and

zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...

Robert Edmond Grant in 1833.Grant, R. E. (1833). Lectures on Comparative Anatomy and Animal Physiology. Lecture IV. On the classification of the organs of animals, and on the organs of support in animalcules and poripherous animals. ''The Lancet'', 1(531), 193–200.

Species

The following species of ''Leuconia'' are accepted in the World Porifera database: *'' Leuconia alaskensis'' de Laubenfels, 1953de Laubenfels, M. W. (1953). Sponges of the Alaskan Arctic. ''Smithsonian Miscellaneous Publications'', 121(6), 1–22. *'' Leuconia dura'' (Hozawa, 1929)Hozawa, S. (1929). Studies on the calcareous sponges of Japan. ''Journal of the Faculty of Science, Imperial University of Tokyo, Zoology'', 1, 277–389. *'' Leuconia gladiator'' (Dendy, 1893)Dendy. A. (1892). Synopsis of the Australian Calcarea Heterocœla; with a proposed classification of the group and descriptions of some new genera and species. ''Proceedings of the Royal Society of Victoria'', 5, 69–116. *'' Leuconia johnstoni'' Carter, 1871Carter, H. J. (1871). A description of two new Calcispongiæ, to which is added confirmation of Professor James-Clark's discovery of the true form of the sponge-cell (animal), and an account of the polype-like pore-area of ''Cliona corallinoides'' contrasted with Professor E. Häckel's view on the relationship of the sponges to the corals. ''The Annals and Magazine of Natural History'', 8)43, 1–27. *'' Leuconia joubini'' (Topsent, 1907)Topsent, M. E. (1907). Éponges calcaires recueillies par le Français dans l'Antarctique (Expédition du Dr. Charcot). ''Bulletin du Muséum National d'Histoire Naturelle, Paris'', 13, 539–544. *'' Leuconia nivea'' (Grant, 1826) *'' Leuconia ochotensis'' (Miklucho-Maclay, 1870) *'' Leuconia usa'' (de Laubenfels, 1942)de Laubenfels, M. W. (1942). Porifera from Greenland and Baffinland collected by Captain Robert A. Bartlett. ''Journal of the Washington Academy of Sciences'', 32(9), 263–269. Several other species formerly treated as part of ''Leuconia'' have been transferred to other genera, primarily ''Leucandra''.

References

Calcaronea Sponge genera {{calcarea-stub