Eimeria ludoviciani Vetterling, 1964.
Type host: Cynomys ludovicianus.
Other hosts: C. leucurus
Type locality: North America: USA, Larimer,
Colorado, near Fort Collins.
Other localities: North America: USA,
Description of oocyst: Oocyst shape: subspheroid to
ellipsoid; wall thickness: 0.9;
layers: 2; outer layer proportion of total thickness: not given; outer layer colour:
colourless; outer layer texture: smooth; inner wall characteristics: not given;
micropyle: absent; OR: present; OR characteristics: compact (in drawing); OR L x W:
not given; PG: present; number of PGs: 1-2; PG shape: not given; PG L x W: not
given; size: 20.7 x 17.7 (16-26 x 13-21); L/W ratio: 1.2 (1.1-1.4). Distinctive
features of oocyst: none.
Description of sporocysts and sporozoites:
Sporocyst shape: lemon-shaped; size: 9 x
7; SB: present; SB L x W: not given; SB characteristics: not given; SSB: absent;
PSB: absent; SR: present; SR characteristics: compact, between SP in the drawing; SR
size: not given; SP: vermiform. Distinctive features of sporocyst: none.
Remarks: Eimeria ludoviciani was described
from C. ludovicianus (Vetterling, 1964).
It is similar to E. callospermophili in size and shape of the oocyst and
however, the oocyst residuum is composed of a compact mass not large homogenous
globules and the sporocyst residuum is conspicuous rather than nearly
References: Seville & Williams (1989); Vetterling