Caudotestis skrjabini is a species of a trematode in the family Opecoelidae.
Hosts Hosts of Caudotestis skrjabini include: Snail Theodoxus fluviatilis serves as the first intermediate host . Sand hoppers are natural additional hosts: Pontogammarus robustoides, Pontogammarus crassus, Dikerogammarus villosus, Dikerogammarus haemobaphes, Chaetogammarus ischnus and Amathillina cristata. Definitive hosts are Cobitis taenia, and gobies: toad goby (Mesogobius batrachocephalus), bighead goby (Ponticola kessleri) and monkey goby (Neogobius fluviatilis).
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