Figure 1

The current geographical distribution of the Pomatiopsidae. The known distribution of the sub-families Pomatiopsinae and Triculinae are shown as shaded areas and the locations of key genera indicated, with number of currently recognized species in parentheses. Coxiella includes one species recently extinct. Cecina is also found in Japan. The range of the Triculinae was plotted using the present data and notes in the literature. The range of Oncomelania hupensis was taken from the literature [5]. The distributions of the African and North American taxa are given only to State level. Map generated using the R packages maps and mapdata [6, 7].