There are 613 paralectotypes, including MCZ 356476 (4 specimens).
The taxon name originally appeared as S. cinerea-vara, but was used as S. cinerea-varia on the following page. Maynard (1913c:199) subsequently published a correction, stating "for cinerea-vara read cinerea-varia", thus becoming the First Reviser according to Article 24.2.4 (ICZN, 1999:30). Following Article 32.5.2.4 (ICZN, 1999:40) the hyphen is removed and the taxon becomes cinereavaria. Gould and Woodruff (1986:474) had examined "paratypes" and synonymized this taxon with Cerion glans (Küster, 1844).