Type host: Tomopeas ravus Miller, 1900, Peruvian crevice bat.

Other hosts: None reported to date.

Type locality: SOUTH AMERICA: Peru, Departmento Lambayeque, Cerro la Vieja, 7 km S Motupe; elev. ~150m.

Geographic distribution: SOUTH AMERICA: Peru.

Description of oocyst: Oocyst shape: ellipsoidal to subspheroidal; number of walls: 2; wall thickness: ~1.0; wall characteristics: of uniform thickness, outer yellowish, mammillated, 2/3 of total thickness; inner, smooth, colorless; L x W: 30.6 x 24.6 (26-34 x 20-28); L/W ratio: 1.2 (1.2-1.35); M: absent; OR: present; OR characteristics: variable from a spheroid, homogeneous, lipid-like globule, ~5.0, to multiple bodies, to a coarse, granular spheroid, and sometimes there is a membrane-like structure associated with the sphere; PG: 1, small. Distinctive features of oocyst: rough outer wall plus both OR, which is highly variable in structure from oocyst to oocyst, and small PG.

Description of sporocysts and sporozoites: Sporocyst shape: ovoidal; L x W: 13.9 x 9.0 (12-15 x 8-10); L/W ratio: 1.5 (1.4-1.8); SB: present, small, somewhat flattened structure at slightly pointed end of sporocyst; SSB: absent; PSB: absent; SR: present; SR characteristics: large scattered granules; SP: lie head to tail, each with 1 posterior RB. Distinctive features of sporocyst: thin wall with tiny flattened SB.

Prevalence: 2/17 (12%).

Sporulation: Presumably exogenous. Oocysts sporulated in 2.5% aqueous (w/v) potassium dichromate solution 1 week after being returned to lab from Peru at 23 C.

Prepatent and patent periods: Unknown.

Site of infection: Unknown. Oocysts recovered from intestinal contents.

Materials deposited: Symbiotype host in the Louisiana State University Museum of Zoology, LSYMZ 25067 (7 July 1981). Photosyntypes of sporulated oocysts in the USNPC No. 86004.

Remarks: The sporulated oocysts of this species most closely resemble those of E. eumopos. They differ, however, by being smaller (31 x 25 vs 35 x 28), by having larger sporocysts (14 x 9 vs 12 x 5) with a large, granular SR, and by having a SB that is indistinct.

References: Duszynski and Barkley (1985).