 The arguments connecting Aristoxenus to the catalogue are not unassailable, however, and it is likely that the list has been altered in transmission, so that it cannot simply be accepted as the testimony of Aristoxenus (Huffman 2008a). No names on the list can be positively assigned to a date later than Aristoxenus, but this would be likely to be true, even if the list were compiled at a later date, since Pythagoreanism appears to have largely died out for the two centuries immediately following Aristoxenus’ death. Thus, Iamblichus does not mention any Pythagorean who can be positively dated after the time of Aristoxenus anywhere else in On the Pythagorean Life either. Scholars have also argued that Iamblichus cannot have composed the catalogue, since he mentions some 18 names that do not appear in the catalogue. This argument would only work, if Iamblichus were a careful and systematic author, which the repetitions and inconsistencies in On the Pythagorean Life show that he was not. While it is unlikely that Iamblichus composed the catalogue from scratch, it is perfectly possible that he edited it in a number of ways, while not feeling compelled to make it consistent with everything he says elsewhere in the text. There are some peculiarities of the catalogue that suggest a connection to Aristoxenus. Philolaus and Eurytus are listed not under Croton but under Tarentum, just as they are in one of the Fragments of Aristoxenus (Fr. 19 Wehrli = Diogenes Laertius VIII 46). On the other hand, some features of the catalogue are inconsistent with what we know of Aristoxenus. Aristoxenus’ teacher, Xenophilus, who is identified as from the Thracian Chalcidice in the Fragments of Aristoxenus (Frs. 18 and 19 Wehrli), is identified as from Cyzicus in the catalogue. Moreover, the legendary figure, Abaris, is included in the catalogue and even said to be from the mythical Hyperborea, whereas Aristoxenus is usually seen as resolutely trying to rationalize the Pythagorean tradition. Thus, while Aristoxenus is quite plausibly taken to be the author of the core of the catalogue, it is likely that additions, omissions, and various changes have been made to the original document and hence it is impossible to be sure, in most cases, whether a given name has the authority of Aristoxenus behind it or not.