Preliminary Study on Survey and Population Dynamic of the Terrestrial Snail Monacha obstructa (Pfeiffer) (Hygromiidae, Mollusca) at Crop Fields in Fayoum Governorate, Egypt

Salwa M. Abd El-Halim, Ibrahim H.H. Ali, Shaimaa A.M. El-Sayed and Reham Fathey Ali

Pakistan Journal of Biological Sciences 24 ( 9 ): 928 - 938 , 2021