Type host: Myotis ricketti (Thomas, 1894), Little brown bat.

Other hosts: None reported to date.

Type locality: ASIA: China, Yunnan, Kunming, Huahong Cave.

Geographic distribution: ASIA: China, Yunnan.

Description of oocyst: Oocyst shape: subspheroidal to broadly ellipsoidal; number of walls: 2; wall thickness: ~1.3; wall characteristics: outer, light yellow, smooth, ~3/4 of total thickness; inner, smooth; L x W: 17.5 x 16.4 (15-20 x 14-18); L/W ratio: 1.1 (1.0-1.2); M: absent; OR: absent; PG: 1-3, ellipsoidal in shape. Distinctive features of oocyst: thick, smooth outer wall.

Description of sporocysts and sporozoites: Sporocyst shape: ovoidal; L x W: 11.8 x 7.8 (10-13 x 7-10); L/W ratio: 1.5 (1.3-1.8); SB: present, prominent, nipple-like; SSB: absent; PSB: absent; SR: present; SR characteristics: dispersed, small granules in center of sporocyst; SP: elongate, head-to-tail in sporocyst, with 2 RB, larger one at rounded end and smaller one at pointed end of SP. Distinctive features of sporocyst: nipple-like SB and SP with 2 RBs.

Prevalence: 105/151 (69.5%).

Sporulation: Exogenous. Oocysts sporulated in 60 hr at 26 C.

Prepatent and patent periods: Unknown.

Site of infection: Oocysts recovered from small intestine.

Materials deposited: None.

Remarks: This species differs from E. levinei and E. andamanensis by lacking a M or an OR, from E. eumopos, E. macyi and E. zakirica by having an outer oocyst wall that is smooth, from E. hessei and E. rhynchonycteridis by having a 2-layered wall, and from E. vespertilii and E. mehelyi by having smaller oocysts.

References: Yang-Xian and Fu-Qiang, (1983).