General: The conical bell is equally high as wide, up to 2.5 cm. Stomach suspended below the bell margin. Four V-shaped radial canals. A pair of long tentacles are attached on opposite sides of the bell, and about 80 small tentacles line the margin.
ReferencesEncyclopedia of Life
Tree of Life
World Register of Marine Species
National Center for Biotechnology Information
Citation: Stomotoca atra (L. Agassiz, 1862 ) Deep-Sea Guide (DSG) at http://dsg/mbari.org/dsg/view/concept/Stomotoca%20atra. Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2018-07-18.