William H. Dougal (1822-1895) of Washington, D.C. produced this pre-press engraving proof of "Tachymenes Chilensis [Grd] and Taeniophis Tantillus [Grd}" from an original illustration by John H. Richard (1807- ca 1881). The image was published as Plate XXXVII in Volume 2, following page 212 of Appendix F (Zoology Reptiles) by Charles Girard (1822-1895) in the report describing "The U.S. Naval Astronomical Expedition to the Southern Hemisphere during the Years 1849, 1850, 1851, and 1852" by James M. Gillis (1811-1865). The volume was printed in 1855 by A. O. P. Nicholson (1808-1876) of Washington, D.C.
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