Skrjabinodon alcaraziensis sp. n. (Nematoda: Pharyngodonidae) is described from the cloaca of Algyroides marchi Vaiverde, 1958 (Sauria: Lacertidae) from the Alcaraz Mountains (SE Iberian Peninsula). This nematode is characterized by the presence of an unpaired postcloacal papilla in the males, the presence of cuticular spines in the tail of the female and the absence of polar plugs in the eggs.
Seven of 12 lacertid lizards Acanthodactylus boskianus (Daiidin, 1802), passed oocysts of an Isospora species. Comparison with other species of the genus Isospora Schneider, 1881 indicated that found coccidium represented a new species, for which the name /. abdallahi is proposed. Sporulated oocysts of /. abdallahi are spherical or subspherical, 25.8 (24.5-29.0) x 23.9 (23.0-25.5) pm, shape index (length/width) being 1.07 (1.00-1.16), with a smooth, bilayered oocyst wall that is slightly yellowish, about 2 pm thick. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ovoidal, 15.4 (14.0-16.0 x 9.4 (9.0-10.0) pm, with smooth and colorless sporocyst wall, shape index 1.6 (1.5-1.8). Stieda body is dome-like, substieda body spherical to subspherical. Sporocyst residuum is composed of numerous granules of different size, scattered among sporozoites. Most oocysts are passed unsporulated; sporulation was completed within 12 h at 25'C. Endogenous development occurs inside nuclei of enterocytes in the small intestine.