Media type: E-Article Title: Sexual Dimorphism in Occurrence of Keeled Dorsal Scales in the Eastern Indigo Snake (Drymarchon corais couperi) Contributor: Layne, James N.; Steiner, Todd M. imprint: JSTOR, 1984 Published in: Copeia Language: Not determined DOI: 10.2307/1445167 ISSN: 0045-8511 Keywords: Animal Science and Zoology ; Aquatic Science ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: