| CHITIN | Substance forming outer skeletons of arthropods |
| SCLERA | Firm white membrane forming outer covering of eyeball (6) |
| LEWISIANGNEISS | Rock type forming Outer Hebrides (8,6) |
| INSECT | Described in the books of Jean- Henri Fabre, any one of the more than one million species of arthropods whose development was influenced by the evolution of flowering plants (6) |
| EXOSKELETON | The protective or supporting structure covering the outside of the body of many animals, such as the thick cuticle of arthropods |
| GNATHITE | Mouthpart of arthropods |
| TARDIGRADA | Phylum of arthropods found in water, ditches etc (10) |
| CRUSTACEA | One under surface, a group of arthropods |
| RHABDOMS | Hard mob's misrepresented eyes of arthropods (8) |
| ARACHNIDS | A right pain. Unfinished nests of arthropods (9) |
| INSECTA | One new cult has a lot of arthropods (7) |
| ARACHNIDA | A class of arthropods that includes scorpions and spiders |
| CHELA | Pincer-like prehensile claw, as of arthropods such as the scorpion and the crab (5) |
| COMPOUND | The rhabdom is a transparent, crystalline receptive structure found in the ___ eyes of arthropods (8) |
| OMMATIDIA | What are the individual elements which make up the compound eyes of arthropods? (9) |
| CORAL | Invertebrate marine organisms known for their skeletons-external or internal-of a stonelike, horny, or leathery consistency. The name is also applied to the skeletons of these animals. (5) |
| NACRE | Substance forming the inner layer of shells, also called mother-of-pearl (5) |
| DENTINE | Substance forming the main part of a tooth |
| FRAMES | Word for the structures or skeletons of human bodies; or, the rigid surrounds of doors, lenses, paintings or windowpanes (6) |
| SPONGES | Light, highly absorbent skeletons of marine animals |
