Type host: Leptodactylus ocellatus (L., 1758), Criolla frog.

Other hosts: None reported to date.

Type locality: SOUTH AMERICA: Brazil, outskirts of Sao Paolo.

Geographic distribution: SOUTH AMERICA: Brazil.

Description of oocyst: Oocyst shape: ovoidal; number of walls: 1; wall thickness: "thin"; wall characteristics: colorless; L x W: 23 x 17; L/W ratio: not given; M: absent; OR: present; OR characteristics: often arranged in a rosette-like pattern; PG: absent. Distinctive features of oocyst: none.

Description of sporocysts and sporozoite: Sporocyst shape: ellipsoidal; L x W: 9 x 6.5; L/W ratio: not given; SB: present; SSB: absent; PSB: absent; SR: present; SR characteristics: scanty; SZ: not described. Distinctive features of sporocysts: none.

Prevalence: Not given.

Sporulation: Exogenous.

Prepatent and patent periods: Unknown.

Site of infection: Unknown.

Endogenous development: Unknown.

Materials deposited: None.

Remarks: About half of the known eimerians from anura have ovoidal sporulated oocysts. Of these, five other species are reported to possess an OR: E. cyanophlyctis from Asia, E. kermiti from North America, E. prevoti and E. ranae from Europe, and E. terraepokotorum from Africa. However, sporulated oocysts of E. leptodactyli are larger than oocysts of E. cyanophlyctis, E. terraepokorum, E. prevoti and E. ranae, and smaller than oocysts of E. kermiti. Additionally this is the only Eimeria species known from a Leptodactylus species (additionally see Carini 1931a, b, c; Walton 1945). Based on these differences as well as differences in hosts and geographic location, we consider this species from Leptodactylus ocellatus as distinct.