A redescription of Heterocotyle pastinacae Scott, 1904 (Monogenea: Monocotylidae) from Dasyatis pastinaca (Dasyatididae), with a neotype designation
Heterocotyle pastinacae Scott, 1904 is redescribed and a neotype is designated. H. pastinacae is most easily distinguished from other members of the genus by the elaborate arrangement of sclerotised spines in the vagina. The male copulatory organ also serves to differentiate it from other species in the genus. A possible function for the vaginal spines and unique form of the male copulatory organ is discussed. The use of head organ number as a generic character is considered questionable.
KeywordsNatural History Museum Male Copulatory Organ Intestinal Caecum Marginal Hook Head Organ
- Price, E.W. (1938) North American monogenetic trematodes. II. The families Monocotylidae, Microbothriidae, Acanthocotylidae and Udonellidae (Capsaloidea). Journal of the Washington Academy of Sciences, 28, 109–126.Google Scholar
- Roff, J.C. & Hopcroft, R.R. (1986) High precision microcomputer based measuring system for ecological research. Canadian Journal of Fisheries and Aquatic Sciences, 43, 2,044–2,048.Google Scholar
- Scott, T. (1904) On some parasites of fishes new to the Scottish marine fauna. Twenty-Second Annual Report of the Fishery Board for Scotland (1903), Part 3, 275–280.Google Scholar
- Timofeeva, T.A. (1983) [New representatives of monocotylids (Monogenea, Monocotylidae) from cartilaginous fishes of the South-China and Yellow Seas.] In: [Studies on morphology and faunistics of parasitic worms.] Trudy Zoologicheskogo Instituta, 121, 35–47 (In Russian).Google Scholar
- Timofeeva, T.A. (1985) [Morphological and ecological aspects of evolution in the Monocotylidae (Monogenea).] Parazitologicheskii Sbornik, 33, 44–76 (In Russian).Google Scholar