1. Parasitology Laboratory, Fisheries Research Center, 246 Street #503/5th Ave. and Mar, Barlovento, Santa Fe, Havana 19100, Cuba (e-mail: lucas@cip.alinet.cu; eolian@cip.alinet.cu; mmartínez@cip.alinet.cu)
2. Aquarium A.Q.A Mania, 12 Street #508/21 y 23, Vedado, Plaza, Havana, Cuba. (e-mail: abe18@nauta.cu; alina25@nauta.cu).