| cystoopsis atractostei n. sp. (nematoda: cystoopsidae) from the subcutaneous tissue of the tropical gar, atractosteus tropicus (pisces), in mexico. | a new species of parasitic nematode, cystoopsis atractostei (trichinelloidea: cystoopsidae), is described based on female specimens recovered from the subcutaneous tissue of the tropical gar, atractosteus tropicus gill (lepisosteiformes: lepisosteidae), from 2 localities (canal nueva esperanza and canal tabasquillo) of the pantanos de centla biological reserve, state of tabasco, southeastern mexico, collected in april 2001. the total prevalence was 13%, and the mean intensity of infection was 1 ... | 2003 | 12659316 |