Orconectes limisosus
Fig. 36: Close-up of the head of the american crayfish (Orconectes limisosus). — Nikon D200, Nikkor AF-S VR Micro 105mm, 2 x Sea&Sea YS-110α, Lake Zug, Fischchratte, 26. Mai 2013 Nikon D200; Δt=1/250 s; f=105 mm; f/32.0; ISO 100; 26 May 2013 09:26:41