Thực đơn
Pyxicephalus Danh sách loàiThực đơn
Pyxicephalus Danh sách loàiLiên quan
Pyxicephalus Pyxicephalidae Pyxicephalus edulis Pyxichromis parorthostoma Pyxichromis orthostoma Pyxicephalus adspersus Pyxicephalus obbianus Pyxis planicauda Pyxis arachnoides Pyxidaria subcrenulataTài liệu tham khảo
WikiPedia: Pyxicephalus http://fatfrogs.7.forumer.com http://www.mapress.com/zootaxa/2013/f/z03599p228f.... http://www.itis.gov/servlet/SingleRpt/SingleRpt?se... http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwta... http://www.frogforum.net/care-articles-frogs/2068-... http://www.archive.org/details/classificationde00t... http://www.honoluluzoo.org/african_bullfrog.htm http://www.iucnredlist.org/documents/amphibians/ga... https://web.archive.org/web/20100712135848/http://... https://web.archive.org/web/20100809031443/http://...