Genus Tetralophophora new genus

Diagnosis. Plakinidae (Muricy and Díaz, 2002) with leuconoid aquiferous system, diplodal choanocyte chambers, and one size class of calthrops dispersed evenly throughout ectosome and choanosome. The genus name reflects the characterizing type of spicule, tetralophose calthrops.

Type species: Tetralophophora mesoamericana new species .