Trace fossil (or, ichnofossil) specimen of *Arthrophycus alleghaniensis* from the Silurian Medina Limestone of Orleans County, New York (PRI 76756). The animal that made these feeding traces may have been an arthropod. Specimen is from the collections of the [Paleontological Research Institution](http://www.priweb.org), Ithaca, New York. Maximum dimension of specimen is approximately 12.5 cm. Model by Emily Hauf.