Redescription of Psilochasmus oxyurus (Creplin, 1825) Lühe, 1909 (Trematoda: Psilostomatidae), with proposal to synonymize three other species

• Published in: Parasitology
• Main Author: Premvati, G.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1969
• Subjects: Infectious Diseases; Animal Science and Zoology; Parasitology; greater scaup
• Online Access: http://dx.doi.org/10.1017/s003118200003105x; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003118200003105X

Psilochasmus oxyurus , type species of the genus Psilochasmus Lühe, 1909, has been redescribed from whole mounts and transverse, horizontal and sagittal sections. Twenty-five worms from one common mallard, Anas platyrhynchos L. and 12 from one greater scaup, Nyroca marila L. are considered as conspecific with P. oxyurus , although they show some variations in body size and shape of the testes. Of the other eight known species of Psilochasmus , five have already been synonymized and the remaining three, namely, P. indicus Gupta, 1957, P. alii Jaiswal, 1957, and P. megacetabulus Jaiswal, 1957, are declared synonyms of P. oxyurus .