Allocreadiidae

{{Short description|Family of flatworms}}

{{Automatic taxobox

|image = Parasite210036-fig1 - Creptotrema (Digenea, Allocreadiidae).png

|image_caption = Creptotrema creptotrema

|display_parents = 2

|taxon = Allocreadiidae

|authority = Looss, 1902

}}

Allocreadiidae is a family of flatworms belonging to the order Plagiorchiida.{{cite web |title=Allocreadiidae |url=https://www.gbif.org/species/3199 |website=www.gbif.org |access-date=12 May 2021 |language=en}} In their adult stage they parasitize teleosts through their digestive system; they can also parasitize other vertebrates in freshwater ecosystems such as frogs, salamanders, and snakes.{{Cite book |title=Keys to the trematoda. 2 |date=2005 |publisher=CABI |isbn=978-0-85199-587-8 |location=Wallingford}} Allocreadiidae are distinguished from other Trematoda in the cercarial stage, where the cercaria have both an eye-spot and a stylet. The cercaria of Allocreadiidae also develop in lamellibranchs, whereas many other trematodes develop in gastropods.