Isospora soricis Golemansky and Yankova, 1973

Type host: Sorex araneus Linnaeus, 1758, Eurasian common Shrew.

Other hosts: None to date.

Type locality: EUROPE: Bulgaria.

Geographic distribution: EIROPE: Bulgaria.

Description of oocyst: Oocyst shape: ellipsoid; number of walls: 1; wall thickness: <1.0; wall characteristics: thin, smooth, light yellow; L x W: 24 x 17 (23-25 x 16-18); L/W ratio: 1.5; M: absent; OR: absent; PG: sometimes 1. Distinctive features of oocyst: ellipsoid shape.

Description of sporocysts and sporozoites: Sporocyst shape: described as piriform (pear-shaped), but pictured as spheroid (line drawing); L x W: 10.5 x 10.5; L/W ratio: 1.0; SB: absent; SSB: absent; PSB: absent; SR: present; SR characteristics: tiny granules, dispersed; SP: with one small RB at rounded end (line drawing). Distinctive features of sporocyst: spheroid (piriform?) shape.

Prevalence: 1/17 (6%).

Sporulation: Unknown.

Prepatent and patent periods: Unknown.

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

Materials deposited: None.

Remarks: This species has not been seen since its original description.

References: Golemansky and Yankova (1973).