PLLS 16 contains papers mainly arising from several Langford Colloquia held by the Department of Classics, Florida State University. Contents The Elder Pliny S. Citroni Marchetti (Università di Firenze):‘Cicero as Role-Model in the Self-Definition of Pliny the Elder’ Trevor Murphy (University of California, Berkeley): ‘Notes from Underground: the Curious Katabasis of Dionysodorus’ Eugenia Lao: ‘Taxonomic Organization in Pliny’s Natural History’ Aude Doody (University College Dublin): ‘The Authority of Greek Poetry in Pliny’s Natural History 18.63-65’ Trevor S. Luke (The Florida State University): ‘Pliny the Elder on Pythagoras’ Greek and Roman Poetry Nigel Nicholson (Reed College): ‘Four Reasons not to have an Epinician’ Alex Hardie (University of Edinburgh): ‘Callimachus at the Mouseion (the Hymn to Delos)’ Annemarie Ambühl (Johannes Gutenberg-Universität Mainz): ‘Literary Love Triangles: Berenice at Alexandria and Rome’ Alberto Canobbio (University of Pavia): ‘Lucilius and Horace: from criticism to identification’.