Eimeria eutamiae Levine, Ivens &
Type host: Tamias dorsalis.
Type locality: North America: USA, Arizona, Hull
Tank, S rim of the Grand Canyon,
Grand Canyon National Park.
Description of oocyst: Oocyst shape: ovoid; wall
thickness: 1.4; layers: 2; outer
layer proportion of total thickness: 0.7; outer layer colour: colourless; outer
layer texture: smooth; inner wall characteristics: smooth, pale tan; micropyle:
absent; OR: absent; PG: present; number of PGs: 1; PG shape: not given; PG L x W:
not given; size: 27.3 x 21.4 (24-30 x 19-23); L/W ratio: 1.3 (1.1-1.4). Distinctive
features of oocyst: slightly pointed shape, inner wall disappears at pointed end, PG
usually lies among the sporocysts.
Description of sporocysts and sporozoites:
shape: lemon-shaped; size: 11 x
8; SB: present; SB L x W: not given; SB characteristics: not given; SSB: absent;
PSB: absent; SR: present; SR characteristics: not given; SR size: not given; SP: no
RB (in drawing). Distinctive features of the sporocyst: they lie with long axes
perpendicular to long axis of oocyst, so they are seen on end.
Remarks: Eimeria eutamiae has been observed only
once (Levine et al., 1957).
Reference: Levine et al. (1957).