ACANTHOCEPHALA
ARCHIACANTOCEPHALA
OLYGOCANTHORHYNCHIDA
Oligacanthorhynchidae
Macracanthorhynchus hirudinaceus
ROTIFERA
EUROTATORIA
COLLOTHECACEAE
Collothecidae
Collotheca sp.
GASTROTRICHA
GASTROTRICHA
CHAETONOTIDA
Chaetonotidae
Chaetonotus sp.
NEMATODA
SECERNENTEA
ASCARIDIDA
Ascarididae
Ascaris lumbricoides