All modern critics have read verses 128–36 of Pseudo-Scymnus’ iambic Periodos to Nicomedes (c.133–110/109 b.c.e.) as a description of the personal autopsies of the author. However, close analysis of both the literary dynamics of the poem and the syntax of the lacunose text that precedes this passage shows that this cannot be the case. This article proposes that Timaeus of Tauromenium (c.350–260 b.c.e.) is a superior candidate for the referent of these lines, and offers a coherent approach to emending the manifestly corrupt text. This reinterpretation makes better sense of the extant text of the Periodos, and allows these verses to be read as a second-century witness to Timaeus’ autoptic prowess.