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Keywords from Image Description:
PZSLPlate. Potamon Potamonautes orbitospinus Cunnington Rathbun Cunnington Cunnington Cunnington Cunnington MilneEdwardsA MilneEdwards Milne Edwards Cunnington Cunnington Milne Edwards second segment of second antenna pr descending process of frons ex orb external orbital spine so suborbital spine so subocular tooth Proceedings