Eimeria carmelinoi
n.sp., is described in the teiid lizard
Kentropyx calcarata
Spix, 1825 from north Brazil. Oocysts subspherical to spherical, averaging 21.25 x 20.15 μm. Oocyst wall smooth, colourless and devoid of striae or micropyle. No polar body or conspicuous oocystic residuum, but frequently a small number of fine granules in Brownian movement. Sporocysts, averaging 10.1 x 9 μm, are without a Stieda body. Endogenous stages characteristic of the genus: intra-cytoplasmic, within the epithelial cells of the ileum and above the host cell nucleus. A re-description is given of a parasite previously described as
Eimeria cnemidophori
, in the teiid lizard
Cnemidophorus lemniscatus lemniscatus
. A study of the endogenous stages in the ileum necessitates renaming this coccidian as
Acroeimeria cnemidophori
(Carini, 1941) nov.comb., and suggests that Acroeimeria pintoi Lainson & Paperna, 1999 in the teiid
Ameiva ameiva
is a synonym of
A. cnemidophori. A further intestinal coccidian,
Acroeimeria paraensis
n.sp. is described in
C. l. lemniscatus, frequently as a mixed infection with
A. cnemidophori. Mature oocysts, averaging 24.4 x 21.8 μm, have a single-layered, smooth, colourless wall with no micropyle or striae. No polar body, but the frequent presence of a small number of fine granules exhibiting Brownian movements. Sporocysts 9 x 8, without a Stieda body. Endogenous stages epicytoplasmic, characteristic of the genus, in the upper ileum. The importance of a study of the endogenous stages of eimeriid coccidia is discussed.
