Oncomelania snails

[xn zhou]

> Does anyone know the reference about naming the genus name of Oncomelania for
> Oncomelania snail by Gredler in 1881.
> Thanks 
> 
> Zhou XiaoNong, Ph.D.
> Head of 
> Department of Schistosomiasis Control
> Jiangsu Institute of Parasitic Diseases
> Meiyuan, Wuxi 214064
> P.R.China
> 
> 
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