Eimeria amorphospora Duszynski and Moore, 1986
Type host: Urolophus talpoides Temminck, 1841, Greater
Japanese shrew mole.
Other hosts: None reported to date.
Type locality: ASIA: Japan, Honshu, Nagano Prefecture, 2.0 km E. Haramura.
Geographic distribution: ASIA: Japan, Honshu.
Description of oocyst:
Oocyst shape: subspheroid/ellipsoid;
number of walls: 2;
wall thickness: ~1.0+;
wall chracteristics: outer layer smooth, ~2/3 of total thickness, inner layer transparent;
L x W: 21.2 x 17.9 (18-25 x 16-21);
L/W ratio: 1.2 (1.1-1.3);
Distinctive features of oocyst: none.
Description of sporocysts and sporozoites:
Sporocyst shape: amorphous, gelatinoid envelopes that fill the length of the oocyst;
L x W: 20.3 x 7.5 (17-24 x 7-9);
L/W ratio: 2.7;
SP: appear to be enclosed in a membrane within the sporocyst that gives them an irregular/ellipsoid shape
that measures 13.2 x 6.8 (12-14 x 6-8); 1 spheroid RB at opposite ends of each SP.
Distinctive features of sporocyst: No other sporocyst of an Eimeria sp. described to date
has the unique structural features described in this form.
Prevalence: 9/45 (20%) in type host; 0/6 in U. pilirostris
Sporulation: Exogenous. Oocysts 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 Musuem of SW Biology, UNM: MSB No. 45307 (NK 6047, male) D.W. Reduker #400,
28 May, 1981. Photosyntypes in the USNPC No.85979.
Remarks: Based on the structure of the sporocysts, this is one of the
most unusual species of Eimeria ever described. This species has not been reported since its
References: Duszynski and Moore (1986).