Both Reptile Database (RD) and SSAR carve off
Chionactis occipitalis annulata & Chionactis occipitalis klauberi as Chionactis annulata annulata & Chionactis annulata klauberi

and lump Chionactis occipitalis talpina & Chionactis occipitalis occipitalis into a monotypic Chionactis occipitalis

RD also lumps Chionactis into Sonora (e.g. Sonora occipitalis & Sonora annulatus) but I'm not doing that yet since SSAR hasn't done that yet