Contributed by Heinke Schultz, August 2007
[(= Leptodiadema Agassiz & Clark, 1907, type species L. purpureum Agassiz & Clark, 1907) ]
|Type||Lissodiadema lorioli Mortensen, 1903, by original designation|
|Classification and/or Status||Diadematoida, Diadematidae
|Remarks||The type species was established on the basis of a single 22 mm diameter individual. It has aboral naked interambulacra and well developed adradial tubercles on oral side in its ambulacra like Chaetodiadema and Goniodiadema. It differs from the other diadematids by almost or entirely smooth tubercles and by non-verticillate spines.
Mortensen, T. 1903. The Danish Ingolf-Expedition 1895-1896. Vol. 4, No. 2. Echinoidea, pt. 1.Copenhagen, 198 pp.
Mortensen, T. 1940. A monograph of the Echinoidea. Volume III. 1. Aulodonta. C.A. Reitzel, Copenhagen