|Distribution||Recent, South Africa.|
|Type||Catopygus loveni Struder, 1880, p. 878; by monotypy.|
|Classification and/or Status||Irregularia; Cassiduloida; Incertae sedis.|
|Remarks||Struder (1880) states that there are five genital plates in the type species. Mortensen (1948, p. 343) who collected specimens of the the type species reports that this is an error, with there being only four genital plates. Mortensen describes well-developed genital papillae in the males, with the genital pores in the female being located deep down in the marsupium. Similar to Anochanus the marsupium is protected by a 'hood' of spines.
When establishing this genus Clark (1923) emphasizes the relationship between Tropholampas and Neolampas, but fails to compare his genus with the morphologically similar Anochanus. Both genera have a sunken apical disc, with a distinct marsupium present in the females. Tropholampas differs from Anochanus by the more rudimentary condition of its ambulacra, and by the marginal position of its periproct, this being supramarginal in Anochanus.
H. L. Clark. 1923. The Echinoderm fauna of South Africa. Annals of the South African Museum, 13, pp. 221-435, pls 8-23.
T. Mortensen. 1948. A monograph of the Echinoidea: 4 (1): Holectypoida, Cassiduloida. Reitzel, Copenhagen, 363 pp., 14 pls.
T. Struder. 1880. Ubersicht uber die wahrend der Reise S. M. S. Corvette Gazelle um die Erde 1874-76 gesammelten Echinoiden. Monatsbericht Akademie der Wissenschaften zu Berlin, pp. 861- 885 (fig. 1a).