Children (15 direct children, 38 direct and indirect children):
Echinopsis
(tree size 4)
Echinopsis (sea urchin)
Glyphocyphus
Dictyopleurus
(tree size 2)
Bandelicyphus
(tree size 1)
Arachniopleurus
(tree size 1)
Eurysalenia
(tree size 1)
Hemidiadema
(tree size 5)
Rhabdopleurus
Ambipleurus
(tree size 3)
Rachiosoma
(tree size 6)
Glyptocyphus
Medocechinus
Micropsidia
Tiaridia
Hebertia