Five new species of ancylodiscoidins (Monogenea: Ancylodiscoidinae) from Notopterus chitala (Hamilton) and Notopterus notopterus (Pallas) in Peninsular Malaysia

• Published in: Folia parasitologica Vol. 33; no. 4; pp. 315 - 325
• Main Authors: Lim, LHS, Furtado, JI
• Format: Journal Article
• Language: English
• Published: 01-01-1986
• Subjects: Freshwater; Notopterus; Notopterus chitala; Malaysia
• ISSN: 0015-5683

Five new species of ancylodiscoidins were collected and described from two notopterids, Notopterus chitala (Hamilton) and Notopterus notopterus (Pallas) in Peninsular Malaysia. They are Notopterodiscoides belidus n. g. et n. sp., Notopterodiscoides ornatohamus n. g. et n. sp., Silurodiscoides tasekensis n. sp. and Silurodiscoides platamauxili n. sp. from N. chitala, and Malayanodiscoides bihamuli n. g. et n. sp. from N. notopterus. The new genera belong to the subfamily Ancylodiscoidinae and are characterised by unusual features in their marginal hooks: each of the first pair of marginal hooks in Notopterodiscoides gen. n. has a process protruding from its handle, while Malayanodiscoides gen. n. has a bar between the individuals of the ventral pair of marginal hooks. A previously described species ("Urocleidus" notopteri Jain, 1955) was also collected from N. notopterus. However, based on the structure of the seminal vesicle which is characteristic of the subfamily Ancylodiscoidinae, this species should be re-designated as Silurodiscoides notopteri comb. nov.(DBO)