80 years of life - most of them in an intense academic and scientific work - have passed in the presence of Dr. Ramon Brenes Rodrigo Madrigal. In his interesting and profound systematic activity and global taxonomic Helminthology shine more than 52 works on nematodes, trematodes and tapeworms. Also in human and veterinary medicine , where it stands out as a true specialist in Paragonimasis , Fascioliasis , Filariasis , etc .; investigating not only immersed in the helminth fauna in Mexico and Venezuela Costa Rican material, but to publish their research in scholarly journals in the United States ( Am . J. Trop . Med . Hyg . , J. Parasitol ) , Mexico ( An. Inst . Biol UNAM) , Cuba ( Rev. Cub . . Med. Trop ) Venezuela (Memory of the Society of Natural Sciences ) , etc.