No abstract

Survey on Trichodinid ciliophorans from the fresh water fishes of Manipur revealed three known species of the genus Tripartiella from the gills of major carps Labeo rohita (Hamilton); Cirrhinus mrigala (Hamilton); Catla catla and Ciprinus carpio. These are redescribed in this communication.

Domesticated birds (515) consisting of 185 broiler (Gallus gallus domesticus), 130 layers (Gallus Sp), 75 free range local chicken (Gallus domesticus), 40 house pigeon (Columba livia), 70 ducks (Anas platyrhynchos) and 15 turkeys (Melleagris gallopavo) reared in valley districts of Manipur were investigated for intestinal protozoan and helminthic infections. Fresh faecal samples of these birds were examined microscopically by direct wet smear with 2.5 % potassium dichromate (K 2 Cr 2 O 7 ). Of these 412 (80 %) were found to be infected with different species of gastrointestinal parasites. The highest (90.8 %) prevalence of these parasitic infections was found in broiler followed by layer (78.5 %), duck (75.7 %), house pigeon (75 %), Turkey (66.7 %) and free range local chicken (65.3 %), etc. A total of 10 species of intestinal parasites were encountered. Among these, the protozoans Eimeria and Isospora were the most common (68.3 %) followed by mixed infection of protozoan and Helminths.

Study of Aphelenchoides nematodes from different localities of Manipur were conducted for their documentation. During the study eight known and a new species were identified. Aphelenchoides aerialis sp. nov. differed from all other species of Aphelenchoides in having a tail without bifurcation and strong ventral mucro with single ventrosublateral caudal papillae in male. The known species along with the new species are described in the present study.

Analysis of the soil samples collected from around rhizospheric region of mulberry plants grown in Yurembam Rose Garden, Yurembam, Imphal West, Manipur yielded several soil and plant parasitic nematodes. Among them four species of Aphelenchoides were recorded. Upon detailed study, two species of Aphelenchoides were found to be new to science. Aphelenchoides dhanachandi sp. n. is characterized by ventrally curved body, clearly set off cephalic region and tail ending into a sharp pointed terminus, and stylet slender, 13.6-15.3 (14 ± 0.7) µm long with indistinct basal swellings and tamarind seed-shaped median bulb. Aphelenchoides neoechinocaudatus sp. n. is characterized by straight body with four incisures in the lateral field, flatten cephalic region, slender stylet with indistinct basal swellings, 11.9 µm long, elongated pear-shaped median bulb and short tail with pointed mucro. The two species are illustrated here.