123456Golding R. E., Ponder W. F. & Byrne M. (2007). "Taxonomy and anatomy of Amphiboloidea (Gastropoda: Heterobranchia: Archaeopulmonata)". Zootaxa1476: 1-50. abstract.
↑Jörger K. M., Stöger I., Kano Y., Fukuda H., Knebelsberger T. & Schrödl M. (2010). "On the origin of Acochlidia and other enigmatic euthyneuran gastropods, with implications for the systematics of Heterobranchia". BMC Evolutionary Biology10: 323. doi:10.1186/1471-2148-10-323.
Further reading
Golding R. E., Byrne M., Ponder W. F. (2008) "Novel copulatory structures and reproductive functions in Amphiboloidea (Gastropoda, Heterobranchia, Pulmonata)". Invertebrate Biology127(2): 168–180 doi:10.1111/j.1744-7410.2007.00120.x