Yale course Invertebrate Morphology lecture notes: "Internal and External Anatomy, Classification and Development of the Onychophora (Prototracheata)" by C.E. Packard, 1923-04-20

MS-883, Box: 3, Folder: 124 (Mixed Materials)
Yale course Invertebrate Morphology lecture notes: "Internal and External Anatomy, Classification and Development of the Onychophora (Prototracheata)" by C.E. Packard, 1923-04-20

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