Isospora urotrichi Duszynski and Moore, 1986
Type host: Urotrichus talpoides Temminck, 1841, Greater Japanese shrew mole.
Other hosts: None reported to date.
Type locality: ASIA: Japan, Honshu, Aichi Prefecture, Innyanma City near Jyakkoin Temple.
Geographic distribution: ASIA: Japan, Honshu.
Description of oocyst:
Oocyst shape: spheroid to subspheroid;
number of walls: 2;
wall thickness: <1.0;
wall characteristics: outer. plae yellow, lightly mammillated, ~1/2 of total thickness; inner, transparent;
L x W: 13.4 x 12.4 (11-16 x 9-14);
L/W ratio: 1.1 (1.0-1.3);
PG: 1-2 always present.
Distinctive features of oocyst: small size with mammillated outer wall.
Description of sporocysts and sporozoites:
Sporocyst shape: ovoid;
L x W: 9.2 x 6.3 (8-11 x 5-7);
L/W ratio: 1.5 (1.3-1.7);
SB: present, small;
SR characteristics: granules dispersed among SP or as a large, lipid-like body;
SP: with one large posterior RB.
Distinctive features of sporocyst: small SB.
Prevalence: 27/45 (60%) U. talpoides; 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. 45279 (NK 6044, female), S.B. George #729, 27 May, 1981. Photosyntypes in the USNPC No. 85996.
Remarks: Oocysts of this species do not resemble those from any species previously described from insectivores. This species has not been reported since its original description.
References: Duszynski and Moore (1986).