Abstract
The present investigation was carried out to study the chemical analysis of the mucus of three common
land snails, Eobania vermiculata, Theba pisana and Monacha obstructa, and identification of the chemical
compositions by using GC-MS. Results revealed that several variations in composition were observed
between all species. Oxime, methoxy-phenyl and cyclotrisiloxane, hexamethyl were major components
found that in three species, the total areas detected were 86.23, 76.83 and 70.83, respectively. This
different composition of mucus may be due to differences from one species to another; different
mechanical properties (function) are influenced by external factors such as temperature, humidity, light
intensity, soil conditions and food supply.