Gammarus oceanicus
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Collection locality: Low water, Nova Scotia, Canada. Collected by Verrill, A. E.. IZ number 105269; lot count 1; Microslide 01, balsam, antenna 1; Microslide 01, balsam, antenna 2; Microslide 01, balsam, mandible; Microslide 01, balsam, maxilliped; Microslide 01, balsam, maxilla 1; Microslide 01, balsam, maxilla 2; Microslide 01, balsam, upper lip; Microslide 02, balsam, gnathopod 1; Microslide 02, balsam, gnathopod 2; Microslide 02, balsam, pereopod 7; Microslide 02, balsam, pleopod 1; Microslide 03, balsam, pereopod 3; Microslide 03, balsam, pereopod 4; Microslide 03, balsam, pereopod 6; Microslide 03, balsam, pleopod 2; Microslide 04, balsam, pereopod 5; Microslide 04, balsam, pleopod 3; Microslide 04, balsam, uropod 1; Microslide 04, balsam, uropod 2; Microslide 04, balsam, uropod 3; Microslide 04, balsam, telson.
Yale Peabody Museum’s own description