Showing papers by "Edgardo Moreno published in 1977"
TL;DR: Thirty-three percent of 216 venomous and non-venomous captive snake of Costa Rica were parasitized with hemogregarines (Protozoa: Sporozoa), and five morphological blood types were demonstrated and frequently more than one type occurred in a single host.
Abstract: Thirty-three percent of 216 venomous and non-venomous captive snake of Costa Rica were parasitized with hemogregarines (Protozoa: Sporozoa). The species most affected were Lachesis muta, Crotalus durissus and Boa constrictor with scores above 50%. None of the arboreal species harbored hemogregarines.Five morphological blood types were demonstrated and frequently more than one type occurred in a single host.Lung and liver sections of the parasitized snakes showed cysts similar to those of schyzogonic forms, and sporozoite like forms were observed in the general cavity of a tick (Amblyoma dissimile) from a parasitized snake.Parasitism and life span were not correlated in snakes kept in captivity.
7 citations