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“New records of Acanthocephalans from birds in the Philippines with a description of a new Porrorchis species and identification keys for the genus”

Olga I. Lisistyna, O. I., V. V. Tkach, and S. E. Bush

Abstract


Three acanthocephalan species, Sphaerirostris turdifrom the island thrush (Turdus poliocephalus), and Porrorchis centropusiand Porrorchis kinsellain. sp., both from Philippine scops owls (Otus megalotis), are reported from Aurora Province, Luzon Island, Philippines. Porrorchis kinsellain. sp. can be readily differentiated from previously known members of the genusby an almost perfectly spherical proboscis and presence of a characteristic finger-like process at the female posterior end, among other features. Porrorchis centropusiand Porrorchis hylaeare regarded as synonyms by some authors, but based on several morphological features, they are considered separate species here. A key to the identification of all known species of Porrorchis(other than insufficiently described Porrorchis brevicanthus) is provided.