Thamnophis angustirostris

USNM 959 dorsal

Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles   NMNH Herpetology in DwC A

USNM 959 ventral

Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles   NMNH Herpetology in DwC A