Comments: Elgaria multicarinata formerly was included in the genus Gerrhonotus (see Good 1988).
A molecular phylogeographic study of Feldman and Spicer (2006) failed to support currently recognized subspecies boundaries within E. multicarinata.
Populations along the central Baja California coast, formerly included in this species, were reassigned to E. paucicarinata (Grismer 1988). Some authors have suggested that E. multicarinata and E. paucicarinata should be considered conspecific; however, Good (1988) concluded that paucicarinata is more closely allied with E. kingii.
Five intergrading subspecies have been recently recognized: ingava, multicarinata, nana, scincicauda, and webbii).
Molecular data support recognition of the family Anniellidae and anguid subfamilies Gerrhonotinae and Anguinae as monophyletic groups (Macey et al. 1999).
See Good (1988) for taxonomic treatments of gerrhonotine lizards.