We examined 125 individual crayfish representing 9 species from Arkansas, Oklahoma, and Texas, U.S.A., for the presence of the antennal gland digenetic trematode Alloglossidium. Fifteen (12%) individuals were found to harbor Alloglossidium progeneticum, which is reported for the first time from the following second intermediate hosts: 2 of 7 (29%) Orconectes longidigitus (longpincered crayfish), 3 of 53 (6%) Orconectes ozarkae (Ozark crayfish), 3 of 15 (20%) Orconectes punctimanus (spothanded crayfish), 4 of 7 (57%) Procambarus ouachitae (Ouachita River crayfish) from Arkansas, and 3 of 10 (30%) Orconectes menae (Mena crayfish) from Oklahoma. Four other crayfish species were negative for infection.
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Vol. 83 • No. 2