Deletion of Acuminatus

Comment: this Disambig page meets our requirements for 
Stance: keep
Cited policy: Wikipedia:Disambiguation (WP:D)

Comment: It fulfils the {{green|Ensuring that a reader who searches for a topic using a particular term can get to the information on that topic quickly and easily, whichever of the possible topics it might be}} part of 
Stance: keep
Cited policy: Wikipedia:Disambiguation (WP:D)

Comment: as per my earlier view and the point made by {{U|Elmidae}}: not an encyclopedic term, 
Stance: merge
Cited policy: Wikipedia:Wikipedia is not a dictionary (WP:NOTDICT)