Variations and genetic relationships of garter-snakes
This paper is an attempt to do classification on the garter-snake group to help define differences between natural groups and clarify the systematic arrangements.
"This paper is an attempt to do classification on the garter-snake group to help define differences between natural groups and clarify the systematic arrangements."@en
"Three steps are necessary to determine the genetic relationships: (1) The value of the defining characters must be determined; (2) the geographic probabilities must be utilized; (3) similarities and intergradations must be sought."@en
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région néarctique (zoogéographie) Thamnophis (Colubridae, Serpentes)
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région néarctique (zoogéographie) Thamnophis (Colubridae, Serpentes) variation géographique.
This is a placeholder reference for a Topic entity, related to a WorldCat Entity. Over time, these references will be replaced with persistent URIs to VIAF, FAST, WorldCat, and other Linked Data resources.