Occasional Papers of the Museum of Natural Science, Louisiana State University
Occasional Paper
OccPap 52: The relationship of the groundsnakes Sonora semiannulata and S. episcopa (serpentes: colubridae)
Darrel R. Frost and Thomas R. Van Devender
OccPap 52: The relationship of the groundsnakes Sonora semiannulata and S. episcopa (serpentes: colubridae)
Darrel R. Frost and Thomas R. Van Devender