Pachymatisma

{{Short description|Genus of sponges}}

{{Automatic taxobox

| image = Pachymatisma johnstonia.jpg

| image_caption = Pachymatisma johnstonia

| taxon = Pachymatisma

| authority = Bowerbank in Johnston, 1842Johnston, G. 1842. A History of British Sponges and Lithophytes.(W.H. Lizars: Edinburgh): i-xii, 1-264, pls I-XXV. page(s): 244

| subdivision_ranks = Species

| subdivision = see text

}}

Pachymatisma is a genus of sponges belonging to the family Geodiidae.Boury-Esnault, N.; van Soest, R. (2012). [http://www.marinespecies.org/aphia.php?p=taxdetails&id=132007 Pachymatisma Bowerbank in Johnston, 1842.] In: Van Soest, R.W.M; Boury-Esnault, N.; Hooper, J.N.A.; Rützler, K.; de Voogd, N.J.; Alvarez de Glasby, B.; Hajdu, E.; Pisera, A.B.; Manconi, R.; Schoenberg, C.; Klautau, M.; Picton, B.; Kelly, M.; Vacelet, J.; Dohrmann, M.; Díaz, M.-C.; Cárdenas, P.; Carballo, J. L. (2016). World Porifera database. Accessed through: World Register of Marine Species on 2017-02-17.