TREMATODOS DE LAS RANAS DE LA CIENAGA DE LERMA, ESTADO DE MEXICO. III. REDESCRIPCION DE UNA FORMA NORTEAMERICANA DE HAEMATOLOECHUS Y ALGUNAS CONSIDERACIONES SOBRE GLYPTHELMINS CALIFORNIENSIS (Cort, 1919).

Resumen

This paper contains: a).- A redescription el Haematoloechus complexus (Sealy, 1906) for which a new host and a new locality are given. b).- The description of a new species of Haematoloechus: Haematoloechus parcivitellarius which differs from H. elongatus in the size of the body, the testicles and the ovary; in the shape and size of the pharynx, and the intestinal caeca. The distribution of the uterus in the posterior extremity of the body, the number and distribution of the groups of vitellaria and the size of eggs are also differential characters between the two species mentioned.
Glypthelmins californiensis (Cort, 1919) is a frequent parasite in the intestine of Rana montezumae and R. pipiens; this Tremotode shows a large variability with regard to the size of the body and the organs, keeping as constant character the distribution and location of the vitellaria and the spines on the cuticle.