Ibirhynchus dimorpha (Schmidt, 1973) García-Varela, Pérez-Ponce de León, Aznar & Nadler, 2011

(Fig. 7)

Localities. VERACRUZ: Humedal los Chivos and Lago de Catemaco.

Specimens deposited. CNHE 6164.

Remarks. Southwellina dimorpha was transferred by García-Varela et al. (2011) to the newly described genus Ibirhynchus based on morphological and molecular characters. The specimens collected in this study exhibit the diagnostic characters of this species, i.e., a short and barrel-shaped proboscis armed with 17 to 24 longitudinal circles of 9 to 14 hooks each. In addition, our specimens show sexual dimorphism in terms of spine distribution in the anterior region of the trunk. The females are characterized by possessing a single field of spines whereas the males have 2 fields. Ibirhynchus dimorpha has been previously reported in the white ibis in localities of Florida and Mexico (Schmidt 1973; Forrester & Spalding 2003; Richardson & Font 2006; García-Varela et al. 2011), and in the whooping crane Grus americana (Linnaeus) in Florida (Richardson & Font 2006).