| Rating | Solver | Clue |
|---|---|---|
| HATCH | Trapdoor | |
| TRAPPER | A boy who opens and shuts a trapdoor in a gallery or level. | |
| VALVE | A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, as in the barberry. | |
| TETRANEUMONA | A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and the trapdoor spiders. See Mygale. | |
| MYGALE | ...ungs and only four spinnerets. They do not spin webs, but usually construct tubes in the earth, which are often furnished with a trapdoor. The ... | |