| 摘要 |
A petri dish includes a bottom container member having a circumferential groove located in the bottom corner thereof. The groove facilitates the distribution of liquid culture media during the filling operation, assists in retaining the periphery of the solidified media in place to increase shelf-life, and provides a pleasing visual perception as to the media thickness when the petri dish is viewed from the side. The cover member includes an upstanding rib located on a top surface thereof, such that upon stacking the petri dish with another of like construction, the exterior surface of the circumferential groove and the upstanding rib cooperate to facilitate stacking. Also, the respective top and bottom walls of the cover and bottom container being 30% thinner than their associated side wall portions to provide in a savings in fabrication material.
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