FIGURE 4. Cassidulus caribaearum Lamarck, 1801 in Synchrotron micro-CT scanning leads to the discovery of a new genus of morphologically conserved echinoid (Echinodermata: Cassiduloida)

FIGURE 4. Cassidulus caribaearum Lamarck, 1801 (CASIZ 222205 [neotype] [A–E]; CASIZ 112683B [F–G, I–J]; CASIZ 112683A [H]): photos of test in (A) aboral and (B) oral view, (C) detail of peristome and phyllodes, and test in (D) side and (E) posterior view; SRµCT-based volume renderings of apical disc in (F) external and (G) internal view (arrows indicate calcareous ridges beneath madreporic plate), (H) of peristome in internal view, and of periproct in (I) internal and (J) external view. Scale bars: A–E, 5 mm; F–J, 1 mm.Published as part of Souto, Camilla & Martins, Luciana, 2018, Zootaxa 4457 (1), DOI: 10.11646/zootaxa.4457.1.3, http://zenodo.org/record/145756