53. Strongyloides Spp: westeri (8 a 9 mm) Sólo las hembras parasitan a los equinos Se alijan en Pulmones e I.D. Huevos embrionados Ciclo Biológico
54.
55. Strongyloides stercoralis first-stage larva (L) preserved in 10% formalin. The rhabditoid esophagus is clearly visible in this larva; it consists of a club-shaped anterior portion, a postmedian constriction, and a posterior bulb.