Leucetta

{{Short description|Genus of sponges}}

{{Use Australian English|date=September 2020}}

{{Use dmy dates|date=September 2020}}

{{Automatic taxobox

| image = Leucetta chagosensis Voavah.JPG

| image_caption =Leucetta chagosensis

| image2 = Calcareous Sponge (Leucetta primigenia) (8478940474).jpg

| image2_caption = Leucetta primigenia

| taxon = Leucetta

| authority = Haeckel, 1872

| synonyms = Dyssycus Haeckel, 1872

Sycothamnus Haeckel, 1869

Teichonella Carter, 1878

|synonyms_ref =

}}

Leucetta is a genus of sponges in the family Leucettidae, which was first described in 1872 by Ernst Haeckel.{{WorldPoriferaDB|id=131731 |name=Leucetta Haeckel, 1872|access-date=2020-09-30}}{{Cite book|author=Haeckel, E. |date=1872|title= Die Kalkschwämme. Eine Monographie in zwei Bänden Text und einem Atlas mit 60 Tafeln Abbildungen|publisher= G. Reimer|location=Berlin|volume= 1|pages= 1–484|url=https://www.biodiversitylibrary.org/page/12042749}}{{Cite book|author=Haeckel, E. |date=1872|title= Die Kalkschwämme. Eine Monographie in zwei Bänden Text und einem Atlas mit 60 Tafeln Abbildungen|publisher= G. Reimer|location=Berlin|volume= 2|pages= 116|url=https://www.biodiversitylibrary.org/page/11763164}}{{Cite book|author=Haeckel, E. |date=1872|title= Die Kalkschwämme. Eine Monographie in zwei Bänden Text und einem Atlas mit 60 Tafeln Abbildungen|publisher= G. Reimer|location=Berlin|volume=3|pages= pls 1–60|url=https://www.biodiversitylibrary.org/page/11719145}} The type species is Leucetta primigenia Haeckel, 1872 by subsequent designation.{{Cite web|last=|first=|date=|title=Australian Faunal Directory: Leucetta|url=https://biodiversity.org.au/afd/taxa/Leucetta|archive-url=|archive-date=|access-date=2020-09-30|website=AFD|language=en}}{{cite journal|author=Dendy, A. & Row, R.W.H.|date=1913|title= The classification and phylogeny of the calcareous sponges, with a reference list of all the described species, systematically arranged|journal= Proceedings of the Zoological Society of London |volume=83 |issue=3 |pages= 704–813 [732]|doi=10.1111/j.1469-7998.1913.tb06152.x |url=https://www.biodiversitylibrary.org/page/31976861}}

In Australia, Leucetta species are found off the coasts of New South Wales, Queensland, Victoria, and Western Australia. However, species of this genus are found worldwide.{{Cite web|title=Leucetta Haeckel, 1872|url=https://www.gbif.org/species/2236729|access-date=2020-09-30|website=www.gbif.org|language=en}}