In 1969 Ian Thomson published the texts of two humanist poems with a selective commentary. One of them, Item 144 of the Toledo Cathedral Library MS 100.42, fol. 233r (henceforth T, following Thomson's designation), which also appears as Item 68 in Cod. Vaticanus Barberinianus latinus 42, fol. 328r–v (henceforth simply B, again following Thomson), is a 20-line work attributed to the lawyer Jacobus Cremonensis salaciously describing an erotic contest between Priapus and the nymph Dione. Although Thomson's article appeared two decades ago, I have only recently come upon it, and wish here, if somewhat belatedly, to reply to several of Thomson's textual and other notes on this Priapic poem.