In the present work an attempt has been made to assess the impact of herbicides (Endothal and Terbacil) on statistical relationship between concentrations of herbicides Vs. opercular beatings at two water temperatures (24.0°C±1.0°C and 30.5±1.0°C) and behavioural response in fresh water air breathing siluroid fish, Heteropneustes fossils (Bloch). The behavioural response of the fish towards toxicants were grossly dependent on concentration and length of exposure of herbicides. The mean opercular movements (beatings) decreased with the increasing concentrations of both the herbicides. After such treatment loss of balance, irratic swimming, secretion of copious amount of mucous and loss of pigmentation etc were clearly marked out. The details have been discussed in this paper.
The genus Krimi was established by Burt in 1944 with its type species K. chrysocolaptis,from Chrysocolaptis guttacristatus stricklandi,in Ceylon. Nine specimens of Cestode parasites were collected from the intestine of Gallus gallus domesticus. The present cestode have 55-60 number of strobilla; scolex large, rectangular in shape;rostellar sac large, extends up to the middle of the scolex; 18rostellarhooks; testes 25 to 30in numbers; cirrus pouch medium, oval; ovary is bilobed,each lobe with 7-8 acini;ootype small, oval; gravid proglottids large, broaderthan long.