Entomostomata

Etymology
+, coined by

Proper noun

 * 1)  A group of siphonobranchiate gastropods, having the lip of the shell notched, the members of which are now included in subclass Caenogastropoda.

Hyponyms

 * ,, , , (now in order Neogastropoda);  (now ),  (now ) (now in order ); ,  (Caenogastropoda incertae sedis)