Research Note Gastrointestinal Helminths of Spinner Dolphins Stenella longirostris (Gray, 1828) (Cetacea: Delphinidae) Stranded in La Paz Bay, Baja California Sur, Mexico

摘要

Thirty-one spinner dolphins Stenella longirostris stranded in La Paz Bay, Baja California Sur, Mexico; were examined for endoparasitic helminths. The following species were identified: Zalophotrema pacificum and Hadwenius tursionis (Digenea); Strobilocephalus triangularis, Trigonocotyle sp., and Tetraphyllidea gen. sp. larva (Cestoda); immature Bolbosoma hamiltoni (Acanthocephala); and Anisakis typica(Nematoda). Except for H. tursionis, all the identified helminths are reported for the first time in Mexico. Stenella longirostris represents a new host for H. tursionis and A. typica.