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Keywords from Image Description:
PZSLPage. Megalophrys nasuta Schlegel Schlegel en Bornean Horned Toad esophageal muscle region esophageal muscle grading into abdominal external oblique muscle oviduct esophagus Proceedings of the Zoological Society of London org vol issue org page page published Beddard text PDold PZSL Megophrys nasuta anatomy Anura