Reciprocal translocation between the long arms of chromosomes four and six of Paragonimus westermani from the Philippines.

C-banding patterns have been observed in 14 specimens of Paragonimus westermani from Jaro, Leyte, the Philippines. One of them showed mutations of 2 chromosomes in spreads. Comparative analysis of C-banding patterns between the individual and standard type clarified that the mutant resulted from a reciprocal translocation between the long arms of chromosomes 4 and 6.