Upperside (aboral or dorsal surface) of a sea star (red cushion star, Oreaster reticulatis) showing the madreporite and spines.

---

Size: 4793px × 3373px
Photo credit: © Martin Shields / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aboral, abstract, anatomy, animal, asteroidea, biology, central, close, close-, closeup, colorful, colourful, cushion, disc, disk, dorsal, echinoderm, echinoderms, intake, invertebrate, madreporite, marine, opening, orange, oreaster, oreasteridae, pentamerism, pentaradial, radial, red, reticulatis, sea, spines, star, starfish, stars, surface, symmetry, top, tropical, water