Oncomelania Hupensis - Subspecies

Subspecies

• Oncomelania hupensis chiui (Habe & Miyazaki, 1962) - in Taiwan
• Oncomelania hupensis hupensis (Gredler, 1881) - in China. It is the most widely distributed subspecies of Oncomelania hupensis and lives primarily at low altitude but a few populations live in hilly areas in the drainage area of the Yangtze River in mainland China. It has varix, no matter whether the shell is smooth or ribbed, but most populations have ribbed-shell. Oncomelania hupensis hupensis has the same shell growth allometry as Oncomelania hupensis robertsoni but has a longer shell on average.
• Oncomelania hupensis formosana (Pilsbry & Hirase) - in Taiwan
• Oncomelania hupensis guangxiensis (Liu, 1981)
• Oncomelania hupensis lindoesnsis (Davis & Carney, 1973) - in Sulawesi, or as separates species Oncomelania lindoensis
• Oncomelania hupensis nosophora (Robson, 1915) - it is Endangered (type I, CR+EN) taxon in Japan.
• Oncomelania hupensis quadrasi (Möllendorff, 1895) - in Philippines
• Oncomelania hupensis robertsoni (Bartsch, 1946) - It has a small, smooth shell but with no varix, is found in Sichuan and Yunnan provinces.
• Oncomelania hupensis tangi (Bartsch, 1936) - It has a smooth shell but with thick varix, is found in Fujian province and Guangxi autonomous region, separated geographically from the Yangtze River, and extensive control measures have brought this subspecies to near extinction.

There are 4 subspecies of Oncomelania hupensis in China: hupensis, robertsoni, tangi and guangxiensis.

Genetic confirmation of thsese four Chinese subspecies: Based on shell form, biogeographical and allozyme data, Davis et al. (1995) distinguished 3 subspecies of the Oncomelania hupensis in mainland China. However, Zhou et al. (2008) separated the Oncomelania hupensis guangxiensis out from Oncomelania hupensis tangi based on allozymes and amplified fragment length polymorphism (AFLP), which was verified recently by Li et al. with internal transcribed spacer (ITS) and 16S fragments.