Gammarus oceanicus
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Collection locality: Stratford Breakwater, Fairfield County, Connecticut, USA. Collected by Bishop, M. B., 1931-02. IZ number 105237; lot count 1; Microslide 01, balsam, maxilliped; Microslide 01, balsam, gnathopod 1; Microslide 01, balsam, gnathopod 2; Microslide 02, balsam, pleopod 1; Microslide 02, balsam, pleopod 2; Microslide 02, balsam, pleopod 3; Microslide 03, balsam, antenna 1; Microslide 03, balsam, antenna 2; Microslide 03, balsam, telson; Microslide 03, balsam, uropod 3; Microslide 04, balsam, pereopod 4; Microslide 04, balsam, pereopod 7; Microslide 04, balsam, uropod 1; Microslide 04, balsam, uropod 2; Microslide 05, balsam, pereopod 3; Microslide 05, balsam, pereopod 5; Microslide 05, balsam, pereopod 6; Microslide 06, balsam, mandible; Microslide 06, balsam, maxilla 1; Microslide 06, balsam, maxilla 2; Microslide 06, balsam, lower lip; Microslide 06, balsam, upper lip.
Yale Peabody Museum’s own description