-
Mellita quinquiesperforata, aboral view of denuded test. Bessa Beach, Paraiba, Brazil, South Atlantic Ocean. Source : Echinoderms of Panama (http://echinoderms.lifedesks.org/file-colorboxed/182).
-
Fildes Strait in a depth from 15 to 20 m. King George Island
-
King George Isl./Maxwell Bay; approximately 10 m of depth.
-
King George Isl./Fildes Strait; approximately 30 m of depth.
-
-
Extracted from: David, B., T. Choné, A. Festeau & C. de Ridder (2004). Antarctic Echinoids, an Interactive Database. Editions Universitaires Dijon. Cd Rom
-
Abatus beatriceae / left: apical view, right: oral view.
-
Abatus cavernosus / left: apical view, middle: oral view, right: apical view (after Mortensen, 1910).
-
Abatus cordatus / left: apical view, right: brooding pouch.
-
Abatus curvidens / left: apical view, right: oral view.
-
Abatus ingens / apical views, lower right: valve of globiferous pedicellaria.
-
Abatus philippii / left: apical view, right: oral view.
-
Abatus shackletoni / left: apical view, right: oral view.
-
Antrechinus drygalskii / left: apical view, right: oral view, (after Mortensen, 1909).
-
Antrechinus mortenseni (after Mooi & David, 1993).
-
Longitudinal section of a female of an extant Antarctic brooder, Antrechinus mortenseni. This interior view of the test shows two brood pouches, each of which contains a juvenile at a different stage of development. Also shown are different internal organs (gonoducts, ovaries, water vessels, etc.) and the birth canal through which the young move as they are released to the external environment through enlargement of the apical aperture. from David, B., Mooi, R., Néraudeau, D., Saucède, T. & Vilier, L. 2009. Évolution et radiations adaptatives chez les échinides. Comptes Rendus Palevol 8, 189–207.
-
Antrechinus nordenskjoldi / left: apical view, right: oral view.
-
Aporocidaris eltaniana / left: complete view, upper right: oral view, lower right: lateral view.
-
Aporocidaris incerta (after R. Koehler, 1901).
-
Aporociadris milleri, aboral view. Collected off Coiba Island, Gulf of Chiriqui, Panama, eastern Pacific by the R. V. Albatross from a depth of 3058 m.
-
Aporocidaris milleri / left: apical view, upper right: oral view, lower right: lateral view.
-
Aporocidaris usarpi / upper left: apical view, upper right: lateral view, lower view: primary spines.
-
Arbacia dufresnii / left: oral view, upper right: apical view, lower right: lateral view.
-
Arbacia crassispina, aboral view. Tristan de Cunha main Island (tide pools), Central South Atlantic.