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Geographic variation in the chicken turtle Deirochelys reticularia Latreille

First report on the economic features of turtles of Pennsylvania.

D. Johann David Sch�opfs k�onigl. Preuss. hofraths ... Naturgeschichte der Schildkr�oten : mit Abbildungen erl�autert.

D. Johann David Sch�opfs k�onigl. Preuss. hofraths ... Naturgeschichte der Schildkr�oten : mit Abbildungen erl�autert.

• An ecological study of southern Wisconsin fishes the brook silversides (Labidesthes sicculus) and the cisco (Leucichthys artedi) in their relations to the region
  Auteur(s): Cahn, Alvin Robert
• An ecological study of southern Wisconsin fishes the brook silversides (Labidesthes sicculus) and the cisco (Leucichthys artedi) in their relations to the region
  Auteur(s): Cahn, Alvin Robert

• Studies on North American Polystomidae, Aspidogastridae, and Paramphistomidae
  Auteur(s): Stunkard, Horace Wesley.
• Studies on Myxosporidia a synopsis of genera and species of Myxosporidia; with 25 plates and 2 textfigures
  Auteur(s): Kudo, Richard Roksabro
• Studies on gregarines including descriptions of twenty-one new species and a synopsis of the eugregarine records from the Myriapoda, Coleoptera and Orthoptera of the world
  Auteur(s): Kamm, Mrs. Minnie Elizabeth (Watson)