Authors(s)	Guglielmo L., Costanzo G.
Year	1983
Title	Diagnostic value of the thelycum in euphausiids. II Oceanic species, genera Bentheuphausia, Nyctiphanes, Pseudeuphausia, Tessarabrachion, and Nematobrachion. J. Crust. Biol., 3:278-292.