Description of New Host Record of Genus Hysterothylacium Ward and Magath, 1917 from Siluridae Catfish Wallago attu of Indus River Sindh, Pakistan: Short Communication: Catfishes Wallago attu in Sindh, Pakistan. Pakistan Journal of Scientific & Industrial Research. 2022;65(2):185-188. doi:10.52763.PJSIR.BIOL.SCI.65.2.2022.185.188