Hi Kevin/Jeff:

Yeah, it's really confusing since much of the literature is obsolete. I think the confusion lies with the three distinct trends of thought concerning the genus Pyxicephalus. One side says that there is only two species in the genus: P. adspursus and P. obbianus; leaving P. edulis just another form of P. adspursus. Second, that P. adspursus and P. edulis are subspecies; and the third that there are three distinct species. I am going to side with Channing, Carruthers and Roedel and say that there are three species.

BTW, Pyxicephalus adspersus edulis (Parry, 1982) and Pyxicephalus adspersus angusticeps (Parry, 1982) are synonyms of P. edulus. My head is spinning