Type host: Urotrichus talpoides Temminck, 1841, Greater Japanese shrew mole.

Other hosts: None reported to date.

Type locality: ASIA: Japan, Honshu, Yamagata Prefecture, 3.2 km E Zao-onsen.

Geographic distribution: ASIA: Japan, Honshu .

Description of oocyst: Oocyst shape: ovoid, slightly asymmetrical; number of walls: 2; wall thickness: <1.0; wall characteristics: outer smooth, transparent to pale yellow, of uniform thickness, ~3/4 of total thickness; inner smooth, transparent; L x W: 20.6 x 13.3 (18-23 x 12-15); L/W ratio: 1.6 (1.4-1.75); M: absent; OR: absent; PG: 1, of irregular shape, usually located at pointed end of oocyst. Distinctive features of oocyst: the asymmetrical shape with PG almost always at its pointed end.

Description of sporocysts and sporozoites: Sporocyst shape: lacriform; L x W: 12.0 x 5.8 (10-14 x 5-7); L/W ratio: 2.1 (1.9-2.4); SB: present, prominent, nipple-like; SSB: absent; PSB: absent; SR: absent; SP: give a frothy appearance and have a large, posterior RB. Distinctive features of sporocyst: the shape and nipple-like SB.

Prevalence: 7/45 (16%) in type host; 0/6 U. pilirostris.

Sporulation: Oocysts were sporulated when returned to the laboratory from the field.

Prepatent and patent periods: Unknown.

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

Materials deposited: Skin, skull, skeleton and tissues of the symbiotype host are preserved in the Mammal Division of the Museum of SW Biology, UNM: MSB No. 45678 (NK 6392, female), S.B. George #820. 6 July, 1981. Photosyntypes in the USNPC No. 86003.

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

References: Duszynski and Moore (1986).