Leuconia
{{Short description|Genus of sponges}}
{{For|the town of ancient Ionia in Asia Minor|Leuconia (Ionia)}}
{{Automatic taxobox
| image = Leuconia nivea.jpg
| taxon = Leuconia
| authority = Grant, 1833
| synonyms = * Baeria Miklucho-Maclay, 1870
| subdivision_ranks = Species
| subdivision = See text
}}
Leuconia is a genus of calcareous sponges in the family Baeriidae. It was described by English anatomist and zoologist 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, [4](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){{cite journal|author=Grant, R. E. |date=1826|title= Remarks on the structure of some calcareous sponges|journal=Edinburgh New Philosophical Journal|volume= 1|pages= 166–170|url=https://www.biodiversitylibrary.org/page/2471377}}
- Leuconia ochotensis (Miklucho-Maclay, 1870){{cite journal|author=Miklucho-Maclay, N. |date=1870|title= Über eine schwämme des nördlichen stillen oceans und des eismeeres, welche im Zoologischen Museum der Kaiselichen Akademie der Wissenschaften in St. Petersburg augestellt sind. Ein beitrag zur morphologie und verbreitung der spongien|journal=Mémoires de l'Académie Impériale des Sciences de St.-Pétersbourg|volume=7|issue=15(3)|pages=1–24}}
- 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.