Tetrapocillon
Tetrapocillon is a genus of sponges belonging to the family Guitarridae.
The genus was first described in 1924 by Holger Valdemar Brøndsted, with the type species being Tetrapocillon novaezealandia.
Species
Species accepted by WoRMS are:Tetrapocillon atlanticus Tetrapocillon kurushimensis Tetrapocillon minor Tetrapocillon novaezealandiae- ''Tetrapocillon patbergquistae''