Eimeria menzbieri Svanbaev, 1963.
Type host:Marmota menzbieri (Kashkarov,
Type locality: Asia: Kazakhstan.
Description of oocyst: Oocyst shape: ovoid; wall
thickness: 1.2- 2.1; layers: 2;
outer layer proportion of total thickness: not given; outer layer colour:
yellow-brown or yellow-orange; outer layer texture: smooth; inner wall
characteristics: dark in drawing; micropyle: present; micropyle width: not given;
MC: absent; OR: absent; PG: absent; size: 23.7 x 21.1 (18-28 x 13-24); L/W ratio:
1.1 (1.1-1.4). Distinctive features of oocyst: large micropyle (in drawing).
Description of sporocysts and sporozoites:
Sporocyst shape: ovoid; size: 9.4 x 6.7
(8-11 x 6-8); SB: unknown; SB L x W: not given; SB characteristics: not shown (in
drawing), but the description indicates a SB is present; SSB: absent; PSB: absent;
SR: present; SR characteristics: globules arranged peripherally in sporocyst, but
shown between SP in drawing; SR size: not given; SP: refractile globules present at
ends. Distinctive features of sporocyst: none.
Remarks: The sporulated oocyst resembles that of
os, but has a dark inner wall
(Svanbaev, 1963 drawing) that E. os lacks. Svanbaev (1964) wrote a second
describing E. menzbieri as new, even though he had already described it in
References: Svanbaev (1963, 1964).