Type host: Ptilocercus lowii Gray, 1848, Pen-tailed tree-shrew.

Other hosts: None reported to date.

Type locality: ASIA: Malaysia, Selangor, Bukit Lanjan.

Geographic distribution: ASIA: Malaysia, Selangor, Bukit Lanjan.

Description of oocyst: Oocyst shape: spheroid to subspheroid; number of walls: 2 stated in original description, but line drawing suggests 3 layers; wall thickness: 1.5; wall characteristics: outer, striated, thin and granular; inner layer(s) thicker than striated one; L x W: 23 x 20 (19-27 x 16-23); L/W ratio: 1.15 (1.0-1.3); M: absent; OR: absent; PG: present; number of PGs: 1-2. Distinctive features of oocyst: lack of OR and peculiar number/arrangement of oocyst wall layers.

Description of sporocysts and sporozoites: Sporocyst shape: ellipsoid; L x W: 13 x 7 (11-15 x 6-8); L/W ratio: 1.9 (1.7-2.0); SB: present; SSB: absent; PSB: absent; SR: present; SR characteristics: large granules dispersed in center of sporocyst; SP: elongate with a small anterior RB and a large posterior RB. Distinctive features of sporocyst: SP with 2 distinct RB.

Prevalence: Unknown.

Sporulation: Exogenous. Oocysts sporulated within 1 wk in 2.5% aqueous (w/v) potassium dichromate solution at 30ºC.

Prepatent and patent periods: Unknown.

Site of infection: Unknown. Oocysts recovered from intestinal contents.

Materials deposited: None.

Remarks: This species has not been reported since its original description.

Reference: Mullin et al. (1972).