Jarne et al. (2011) in their review of Recent Biomphalaria regard B. tchadiensis as a 'dubious' species [details]
This species has been usually accepted as a valid one (Vidigal et al., 2001), but, according to Jarne et al. ... [details]
This species has often been accepted as a valid one (Vidigal et al., 2001), while Jarne et al (2010) state it is a ... [details]