Type host: Spermophilus fulvus (Lichtenstein, 1823).

Type locality: Asia: Kazakhstan, Aktiabinsk region, Irgizski area.

Description of oocyst: Oocyst shape: round; wall thickness: 0.5; layers: not given; outer layer colour: light yellow; outer layer texture: smooth; micropyle: absent; OR: present; OR characteristics: small, granular; OR L x W: not given; PG: absent; size: 12-13 x 12-13; L/W ratio: not given. Distinctive features of oöcyst: the smallest oocyst from marmotines.

Description of sporocysts and sporozoites: Sporocyst shape: ovoid; size: 4 x 3; SB: absent (in drawing); SSB: absent; PSB: absent; SR: absent (in drawing); SP: small. Distinctive features of sporocyst: none.

Remarks: Dzerzhinsky & Kairullaev (1989) described this species from S. fulvus.

Reference: Dzerzhinsky & Kairullaev (1989).