Eimeria beecheyi Henry, 1932.
Synonyms: Eimeria cochisensis Hill &
Other names: Eimeria asiatici Levine &
Type host: Spermophilus beecheyi
Other hosts: Cynomys gunnisoni;
C. leucurus; C. ludovicianus; Marmota flaviventris;
Spermophilus elegans; S.
relictus; S. richardsonii; S. townsendii; S.
tridecemlineatus; S. undulatus;
variegatus; Tamias canipes; T.
dorsalis; T. obscurus; T. townsendii.
Type locality: North America: USA, California, Lake
County, near Nevada City.
Other localities: Asia: Buriatia; Kazakhstan; North
America: Canada, Alberta; USA,
Arizona, California, Idaho, New Mexico, Utah, Washington, Wyoming; Central America:
Mexico, Baja California.
Description of oocyst: Oocyst shape: spheroid to
ovoid; wall thickness: 1; layers:
1; colourless; outer layer texture: smooth; micropyle: absent; OR: absent; PG:
present; number of PGs: 1+; PG shape: large; PG L x W: not given; size: 19.2 x 16.0;
L/W ratio: 1.2. Distinctive features of oocyst: none.
Description of sporocysts and sporozoites:
Sporocyst shape: ovoid; size: 12 x 7
(10-14 x 6-8); SB: present; SB L x W: not given; SB characteristics: small; SSB:
absent; PSB: absent; SR: present; SR characteristics: compact mass of densely packed
small granules; SR size: not given; SP: each with large posterior RB. Distinctive
features of sporocyst: none.
Material deposited: USNPC No. 87248
Remarks:<Eimeria beecheyi was described from
S. beecheyi by Henry (1932). Then
Tanabe & Okinami (1940) reported it from Tamias sibericus (Laxmann, 1769)
they called Eutamias asiatica). Levine and Ivens (1965) thought that Tanabe
Okinami (1940) had seen a new species (E. asiatici) because E.
beecheyi was first
described from a ground squirrel not a chipmunk (Henry, 1932). However, neither the
written description nor the photomicrograph in Tanabe & Okinami (1940) is of
sufficient quality to justify a new name or confirm the original identification.
Thus, we suggest that what Tanabe & Okinami (1940) saw is a species
Hill & Duszynski (1986) described E. cochisensis (16.7 x 15.3; range
14-17) in T. dorsalis. In re-evaluating their description and photomicrograph, we
believe E. cochisensis and E. beecheyi represent the same species
because of their
References: Abenov & Svanbaev (1982); Henry (1932);
Hill & Duszynski (1986); Levine
& Ivens (1965); Machulsky (1949); Seville (1997); Seville et al., (1992); Seville &
Stanton (1993b); Shults et al., (1990); Stanton et al. (1992); Tanabe & Okinami
(1940); Thomas & Stanton (1994); Wilber et al. (1994).