''Graffilla'' is a
genus of
parasitic turbellarian
flatworm
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a phylum of relatively simple bilaterian, unsegment ...
s.
A species within ''Graffilla'', ''G. pugetensi'', is a
parasite of the
pericardial cavity of the
bivalvian mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...
''
Macoma nasuta''.
Graffilla effects reared and wild clam populations in Italy, Spain, the United States, and France.
References
Turbellaria genera
Taxa named by Hermann von Ihering
{{Flatworm-stub