Reflectance spectra of 65 Cybele and 24 Themis from Licandro et al. (2011) show similarities in the band between 2.85 and 3.5 μm. The model shown for 24 Themis (Fig. 1, Rivkin & Emery 2010) and that for 65 Cybele, include water ice, but not organics. A spectrum of the insoluble organic material Orgueil (Orthous-Daunay et al. 2010b) and one showing an average of six polycyclic aromatic hydrocarbons (Colangeli et al. 1992) are included for comparison.