Ptychobothrium nayarensis n. sp. has been described from two hill-stream fishes, Barilius bola(Ham.) and Schizothorax richardsonii(Gray) at 325-750 mASL. The new species has been compared with close species. Taxometric evaluation of the new species has been done on available data.
parasitology-helminth-cestoda ; Ptychobothrium nayarensis ; taxonomy ; morphology

Oochoristica pauriensis n.sp. has been described and figured from Hemidactylus brooki(Gray) and H. flaviviridis(Ruppell) on size of strobila, scolex, suckers, testes, ovary, eggs and oncosphere, and number of testes. The new species has been compared with close species.
parasitology-helminth-cestoda ; Oochoristica pauriensis ; taxonomy ; morphology

Anew poultry cestode Raillietina(Skrjabinia) doggaddaensis n.sp.has been described from the domestic fowl Gallus gallus domesticus (L.). The new species has been compared with R.(S.) dhuncheta Sharma (1943) and R.(S.) magnicoronata(Fuhrmann, 1908).
parasitology-helminth-cestoda ; Raillietina(Skrjabinia) doggaddaensis ; taxonomy ; morphology

Analysis of variance has been applied as a new tool for precise substantiation of taxometric differences between Eustrongylides spinispiculum n. sp. and close species, as indicated by the polythetic divisive classificatory system. A revised key to the species of genus Eustrongylides Jagerskiod (1909) has been presented.
parasitology-helminth-nematoda ; Eustrongylides spinispiculum

The distribution of Bothriocephalus sp., Guptaia sp., Mackiewiczia sp., Polyonchobothrium sp., Ptychobothrium sp., and Senga sp. in the alimentary tract of nine Indian hill-stream fishes are described. Though the region around pyloric sphincter was preferred by most cestodes, Senga sp. enabled its existence even in the latter part of intestine apparently because of its well developed adhesive apparatus on scolex.
parasitology-helminth-trematoda ; Bothriocephalus sp. ; Mackiewiczia sp. ; Polyonchobothrium sp. ; Ptychobothrium sp. ; Senga sp. ; epidemiology