Description:
"Foot not byssiferous; mantle fringed behind. Shell not eared, without any anterior byssal groove; hinge toothless. Living in sponges." (Gray, 1854: 418.)
Taxonomic notes:
Original spelling: Crenatulina (Gray, 1854: 418).
Typification:
Type genus: Crenatula Lamarck, 1803.