A review of Vietnamese Schistoloma Kobelt, 1902 with a list of all known species of the genus (Caenogastropoda: Cyclophoroidea: Pupinidae) Author Páll-Gergely, Barna Author Nguyen, Phi Khanh Author Chen, Yansen text Raffles Bulletin of Zoology 2019 2019-05-23 67 322 327 journal article 10.26107/RBZ-2019-0023 2345-7600 4577058 4A98B5DF-EFB7-48B8-80BD-451FB915A243 List of Schistoloma species not found in Vietnam Bartsch described numerous subspecies of Schistoloma from the Philippines , differing from one another only by shell colouration and shell size. Bartsch is widely known to be as an extreme splitter (see review in Watters, 2006 ), and in the present case his subspecies do not seem to be worth maintaining. In the list below we recognise only species-level taxa.