Published as part of Cavallari, Daniel C., Salvador, Rodrigo B., Dornellas, Ana P. S. & Simone, Luiz R. L., 2019, Calliostomatidae, Colloniidae, Margaritidae, and Solariellidae (Gastropoda: Trochoidea) collected by the Marion Dufresne (MD55) expedition in southeastern Brazil, with description of a new species of Calliostoma, pp. 401-428 in Zootaxa 4609 (3) on page 409, DOI: 10.11646/zootaxa.4609.3.1, http://zenodo.org/record/3227892

FIGURE 4. Calliostoma valkuri n. sp. Holotype MNHN-IM-2000-34300, sta. DC79 (H=4.1 mm, D=4.2 mm). A. apertural view. B. apical view. C. umbilical view. D. SEM, apertural. E. SEM, apical view. F. SEM, umbilical view. G. SEM, detail of spire. H. SEM, detail of apex showing the protoconch.