Dowling, Herndon G. (Herndon Glenn), 1921-]]> Zoology--Pictorial works.]]> Snakes--Pictorial works.]]> Brudon, William L.]]> Herpetology]]> Snakes--Pictorial works.]]> Gibson, F. (Frances) Waite]]> Elaphe]]> Snakes--Pictorial works.]]> Hemipenis]]> Gibson, F. (Frances) Waite]]> Snakes--Pictorial works.]]> Colubridae]]> Gibson, F. (Frances) Waite]]> Nerodia]]> Snakes--Pictorial Works.]]> Hemipenis]]> Gibson, F. (Frances) Waite]]> Helicops]]> Snakes--Pictorial works.]]> Hemipenis]]> Gibson, F. (Frances) Waite]]> Poisonous snakes]]> Snakes--Pictorial works.]]> Hemipenis]]> Gibson, F. (Frances) Waite]]> Loxocemidae]]> Snakes--Pictorial works.]]> Gibson, F. (Frances) Waite]]> Coniophanes]]> Snakes--Pictorial works.]]> Hemipenis]]> Gibson, Frances W.]]> Snakes--Pictorial works.]]> Hemipenis]]> Coniophanes fissidens]]> Gibson, Frances W.]]>