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  • Title: Three new eimerians in Capybara (Hydrochaeris hydrochaeris) populations from eastern Bolivia and southern Venezuela.
    Author: Casas MC, Duszynski DW, Zalles LM.
    Journal: J Parasitol; 1995 Apr; 81(2):247-51. PubMed ID: 7707202.
    Abstract:
    From June to August 1993, fecal samples were collected from the intestinal tract of 13 juvenile, 4 pre-adult, and 25 adult capybaras (hydrochaeris hydrochaeris L.) from 10 localities in eastern Bolivia; additionally, 19 fresh fecal samples were collected in 1994 from capybara herds at 2 localities in south central Venezuela. Oocysts of 3 eimerians were recovered from the capybara populations in both countries and, after study, are described here as new species. Sporulated oocysts of Eimeria trinidadensis n. sp. are subspheroidal, 20.9 x 18.1 (18-23 x 16.5-21) microns with sporocysts ovoidal, 9.8 x 6.1 (8-12 x 5-8) microns. Micropyle and oocyst residuum are absent, but polar bodies, Stieda bodies, and sporocyst residua are present. Sporulated oocysts of Eimeria ichiloensis n. sp. are ellipsoidal, 26.2 x 21.0 (23-33 x 18-24) microns with sporocysts ovoidal, 11.6 x 7.4 (9-13.5 x 7-9) microns. Micropyle and oocyst residuum absent, but polar bodies, Stieda bodies, and sporocyst residua are present. Sporulated oocysts of Eimeria boliviensis n. sp. are ellipsoidal, 35.9 x 25.7 (29-45 x 20-30) microns with sporocysts elongate ovoidal, 16.0 x 10.4 (12-20 x 8-12) microns. Micropyle and oocyst residuum are absent, but polar bodies, Stieda bodies, and sporocyst residua are present.
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