科研之友
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摘要
The helminthological examination of nine individuals of Aetobatus cf. narinari (spotted eagle ray; raya pinta; arraia pintada) revealed the presence of an undescribed species of cestode of the genus Acanthobothrium. The stingrays were collected from four locations in Mexico: Laguna Terminos, south of Isla del Carmen and the marine waters north of Isla del Carmen and Champoton, in the State of Campeche, and Isla Holbox, State of Quintana Roo. The new species, nominated Acanthobothrium marquesi, is a category 3 species (i.e, the strobila is long, has more than 50 proglottids, the numerous testicles greater than 80, and has asymmetrically-lobed ovaries); at the present, the only category 3 species that has been reported in the Western Atlantic Ocean is Acanthobothrium tortum. Acanthobothrium marquesi n. sp. can be distinguished from A. tortum by length (26.1 cm vs. 10.6 cm), greater number of proglottids (1,549 vs. 656), a larger scolex (707 mu m long by 872 mu m wide vs. 699 mu m long by 665 mu m wide), larger bothridia (626 mu m long by 274 mu m wide vs. 563 mu m long by 238 mu m wide). This is the first report of a species of Acanthobothrium from the Mexican coast of the Gulf Mexico.
- 出版日期2018-3
