Ryssota ovum is endemic to the Philippines, mainly in Luzon and in the island of Panay. See more

This species is the largest land snail in the Philippines. Shells of Ryssota ovum can reach a diameter of 70–100 millimetres (2.8–3.9 in). These very large shells vary in color from pale brown to maroon and sometimes they show a brighter apex. The aperture is large … See more

The meat of these land snails (in Filipino called Bayuku) are considered a delicacy in Philippines. The empty shells are used as salt containers, ashtrays and drinking vessels. See more

• Schnecken-und-muscheln See more

Ryssota ovum can normally be found underneath forest leaves and branches at the buttresses of tree. This species depends on moisture for survival. So it is abundant during the … See more

Ryssota ovum is nocturnal. As darkness approaches, these land snails start to move and feed on decomposing forest debris. At daybreak, they hide themselves among the forest litter. They are well-camouflaged in the soil at the base of trees among roots, … See more

• Solatre, JS 2003. Characterization of the Habitat and Food Preference of Bayuku (Ryssota Ovum Val.) in Mt. Makiling Forest Reserve. UP … See more