William Dougal (1822–1895) of Washington, D.C. engraved this print of “Crotalus molassus [B & G],” or Black–tailed rattlesnake, from an original sketch likely drawn by John H. Richard (c.1807–1881) of Philadelphia. The illustration was printed as Plate II in the “Reptiles” section of the second part of volume II of the Report on the United States and Mexican Boundary Survey, which was written by Spencer F. Baird (1823–1887). The volume was printed in 1859 by Cornelius Wendell of Washington, D.C.
William Dougal (1822–1895) of Washington, D.C. engraved this print of “Crotalus molassus [B & G],” or Black–tailed rattlesnake, from an original sketch likely drawn by John H. Richard (c.1807–1881) of Philadelphia. The illustration was printed as Plate 2 in the “Reptiles” section of the second part of volume II of the Report on the United States and Mexican Boundary Survey, which was written by Spencer F. Baird (1823–1887). The volume was printed in 1859 by Cornelius Wendell of Washington, D.C.
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