In river, Collected by local person, North of Cebu City, Cebu, Philippines, 32.3mm., early 2014.
The « Hairy Trumpet Snail » is an attractive thiarid with remarkable robust hairs which are mostly part of the periostracum, extending from short shoulder spines. Juveniles are lighter in coloration due to the periostracum being translucent and has finer hairs, as the animal matures the periostracum thickens to be opaque black with more robust hairs. Endemic to freshwater streams of the Philippines, it is a locally common herbivorous gastropod that grazes on algae. A popular algae grazer snail for freshwater aquariums, it is bred by aquarists around the world and has settled as alien species in the wild in some countries such as Solomon Islands and Papua New Guinea. Like most freshwater gastropods the apex is usually corroded. Typical shell length around 25mm., very large specimens may exceed 35mm.