Cyclustera ralli (Underwood & Dronen, 1986) Bona, 1994

Fishes (M): Intestine, mesentery.

DURANGO: Manantial Abraham González: Cyprinodon meeki (Martínez-Aquino & Aguilar-Aguilar 2008) . ESTADO DE MÉXICO: Bordo Mina (Toluca), Bordo Parque Sierra Morelos (Toluca), Bordo Rancho La Venta (Acambay), Presa San Juanico (Acambay): Girardinichthys multiradiatus (Sánchez-Nava et al. 2004); Laguna Chicnahuapan (Almoloya del Río): Girardinichthys multiradiatus (Scholz & Salgado-Maldonado 2001; Sánchez- Nava et al. 2004); Presa Ignacio Ramírez: Cyprinus carpio (Scholz & Salgado-Maldonado 2001) . GUANAJUATO: Presa Ignacio Allende: Aztecula sallaei, Xenotoca variata (Scholz & Salgado-Maldonado 2001) . JALISCO: Lago de Chapala: Chapalichthys encaustus (Martínez-Aquino et al. 2004) . MICHOACÁN: Canal El Porvenir (Ciudad Hidalgo): Girardinichthys multiradiatus (Sánchez-Nava et al. 2004); Lago de Pátzcuaro: Alloophorus robustus (Scholz & Salgado-Maldonado 2001) .

Specimens in collections: BMNH (2000.11.8.1); CNHE (4119, 4822, 5220, 6007); IPCAS (C–312); USNPC (90804–6).

Notes: Specimens of Scholz & Salgado-Maldonado (2001), and Martínez-Aquino & Aguilar-Aguilar (2008) were recorded as Cyclustera cf. ralli, because the shape of the hooks of the C. ralli paratype and those of metacestodes from Mexico are somewhat different (see Scholz et al. 2004).

Birds (A): Intestine.

ESTADO DE MÉXICO: Subcuenca Alta del Río Lerma: Plegadis chihi (Martínez-Haro et al. 2012) .

No specimens in collections.