Gracilacus

Taxobox
name = Pin nematodes
regnum = Animalia
phylum = Nematoda
classis = Secernentea
subclassis = Diplogasteria
ordo = Tylenchida
superfamilia = Criconematoidea
familia = Tylenchulidae
subfamilia = Paratylenchinae
genus = "Gracilacus"
subdivision_ranks = Species
subdivision = See text.

"Gracilacus" (Pin nematodes) is a genus of nematodes. Many of the species in this genus are plant pathogens.