Platorchestia platensis
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Collection locality: Falmouth Beach and Salt Pond, Barnstable County, Massachusetts, USA. Collected by Schopf, T. J., 1960-08-11. Gray Museum; IZ number 49011; lot count 1; Microslide 01, balsam, mouthparts; Microslide 01, balsam, uropod 1; Microslide 01, balsam, uropod 2; Microslide 01, balsam, uropod 3; Microslide 01, balsam, telson; Microslide 02, balsam, gnathopod 1; Microslide 02, balsam, gnathopod 2; Microslide 02, balsam, pereopod 3; Microslide 02, balsam, pereopod 4; Microslide 02, balsam, pereopod 5; Microslide 02, balsam, pereopod 6; Microslide 02, balsam, pereopod 7; original catalog number YPM No. 49005; original catalog number GM 1309; accn=YPM.10771.
Yale Peabody Museum’s own description