Hexaglandula corynosoma Travassos, 1915

Ortega-Olivares, Mirza P., Hernández-Mena, David I., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2011, Helminths of the white ibis, Eudocimus albus (Aves: Therskiornithidae) in Mexico., Zootaxa 3088, pp. 15-26 : 21

Hexaglandula corynosoma Travassos, 1915

( Fig. 9 )

Localitiy. VERACRUZ: Laguna la Rivera.

Specimens deposited. CNHE 7777.

Remarks. The 2 specimens collected in the present study correspond to Hexaglandula corynosoma by having a ventral curved trunk covered by spines extending into the middle region of the trunk, and by lacking genital spines. The specimens show a cylindrical proboscis armed with 16 longitudinal circles of 11 hooks each, conical neck, and double-walled proboscis receptacle, attached at the base of proboscis, with cerebral ganglion at mid-level (see Petrochenko, 1958). Nickol et al. (2002) reported the presence of cystacanths and adults of H. corynosoma in Southeastern U.S.A., and recently, Guillén-Hernández et al. (2008) reported the cystacanths of this species in the decapod Uca spinicarpa and the adult in the Yellow-crowned night heron Nyctanassa violacea (Linnaeus) in Mexico. The specimens recovered from the intestine of the white ibis represent a new host record for H. corynosoma .

Figures

FIGURES 9 – 10. 9. Female of Hexaglandula corynosoma Travassos, 1915. 10. Female of Southwellina hispida Van Cl e ave, 1925. Scale bars = 1 mm.