MolluscaBase taxon details
original description
(of Gulella (Sphincterocochlion) Verdcourt, 1985) Verdcourt, B. (1985). New taxa of Gulella L. Pfr. and Ptychotrema Mörch (Mollusca, Streptaxidae) from Eastern Africa. <em>Journal of Conchology 32: 109–121.</em>
page(s): 109 [details] Available for editors [request]
basis of record
Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16th, 2017. [details]
status source
Rowson, B. (2010). Systematics and diversity of the Streptaxidae (Gastropoda: Stylommatophora). Ph.D. thesis, University of Wales, Cardiff. Pp. i–vii + 1–307. , available online at http://orca.cf.ac.uk/54973/ [details] Available for editors [request]