Eimeria honshuensis Duszynski and Moore, 1986
Type host: Urotrichus talpoides Temminck, 1841, Greater Japanese shrew mole.
Other hosts: Urotrichus pilirostris (True, 1886), Lesser Japanese shrew mole.
Type locality: ASIA: Japan, Honshu, Nagano Prefecture, 2.0 km E. Haramura.
Geographic distribution: ASIA: Japan, Honshu.
Description of oocyst:
Oocyst shape: ellipsoid, slightly ovoid;
number of walls: 1 obvious layer;
wall thickness: <1.0;
wall characteristics: smooth, of uniform thickness;
L x W: 15.5 x 11.4 (13-18 x 10-13);
L/W ratio: 1.4 (1.1-1.6);
PG: present as 1 highly refractile body, ~2.3 x 2.5.
Distinctive features of oocyst: among the smallest of all Eimeria spp. described from this host group.
Description of sporocysts and sporozoites:
Sporocyst shape: ovoid;
L x W: 9.1 x 5.2 (8-10 x 4-6);
L/W ratio: 1.75 (1.5-2.1);
SB: present, small and inconspicuous;
SR characteristics: 1 spheroid, lipid-like body, ~2.5;
SP: with a large, posterior RB.
Distinctive features of sporocyst: they are tightly packed within the oocyst.
Prevalence: 10/45 (22%) in type host; 5/6 (83%) in 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 Divison of the Museum of SW Biology, UNM: U. talpoides: MSB No. 45308 (NK 6060, female), D.W. Reduker #404, 29 May, 1981; U. pilirostris: MSB No. 45665 (NK 6433, male), T.L. Yates #1000, 8 July, 1981. Photosyntypes in the USNPC No. 85997.
Remarks: Oocysts of this species are among the smallest eimerian oocysts yet described from this host group; the species has not been reported since its original description.
References: Duszynski and Moore (1986).