(Serpentes: Colubridae) - compiled by Van Wallach
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Head drawings: genus
Pituophis(Serpentes: Colubridae) - compiled by Van Wallach
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 | Pituophis catenifer (from Breckenridge 1944) |
 | Pituophis catenifer (from Dumeril, Bibron & Dumeril 1854) |
 | Pituophis catenifer (from Girard 1858) |
 | Pituophis catenifer (from LeClere 2013) |
 | Pituophis catenifer (from Lemos-Espinal & al. 2018) |
 | Pituophis catenifer (from Powell & al. 2019) |
 | Pituophis catenifer (from Schmidt & Davis 1941) |
 | Pituophis catenifer (from Stebbins 1954) |
 | Pituophis catenifer (from Vázquez-Díaz & Vázquez-Díaz 2005) |
 | Pituophis catenifer (from Woodbury 1931) |
 | Pituophis catenifer (from Zeiner & al. 1988) |
 | Pituophis catenifer (from Cope 1900) |
 | Pituophis catenifer (from Cope 1900) |
 | Pituophis catenifer (from Cope 1900) |
 | Pituophis catenifer (from Cope 1900) |
 | Pituophis catenifer (from Cope 1900) |
 | Pituophis catenifer (from Baird RR Surv.) |
 | Pituophis catenifer (from USRR Exped.) |
 | Pituophis deppei (from Canseco-Márquez & al. 2010) |
 | Pituophis deppei (from Hidalgo-Licona & al. 2022) |
 | Pituophis deppei (from Vázquez-Díaz & Vázquez-Díaz 2005) |
 | Pituophis deppei (from Schätti & al. 2020) |
 | Pituophis deppei (from Schätti & al. 2020) |
 | Pituophis lineaticollis (from Canseco-Márquez & Gutiérrez-Mayón 2006) |
 | Pituophis lineaticollis (from Canseco-Márquez & al. 2010) |
 | Pituophis lineaticollis (from Günther 1885-1902) |
 | Pituophis melanoleucus (from Cope 1900) |
 | Pituophis melanoleucus (from Holbrook 1842) |
 | Pituophis melanoleucus (from the Internet) |
 | Pituophis melanoleucus (from Palmer & Braswell 1995) |
 | Pituophis melanoleucus (from Powell & al. 1998) |
 | Pituophis melanoleucus (from Powell & al. 2019) |
 | Pituophis vertebralis (from Cope 1900) |