| ARTHROPOD | Invertebrate animal (9) |
| EARTHWORM | Burrowing invertebrate animal of the phylum Annelida to which the adjective lumbricoid relates (9) |
| MINIBEAST | Antlion, boatman, frog-hopper, harvestman, lacewing, ladybird or other tiny entomological invertebrate animal which, despite being too small for a backbone, thus spineless, wields immense power in its |
| MYRIAPODA | Many-legged invertebrate animals, such as millipedes (9) |
| LARVA | Young of invertebrate animal |
| WORM | A type of creeping or burrowing invertebrate animal with long slender body and no limbs, segmented in rings or parasitic in the intestines or tissues |
| ARACHNID | An eight-legged invertebrate animal in the subphylum Chelicerata |
| ECHINODERM | Marine invertebrate animal such as a starfish or sea urchin (10) |
| ZOOPHYTE | Any invertebrate animal resembling a plant, such as coral or a sponge (8) |
| DECAPOD | Invertebrate animal with five pairs of legs, eg. a shrimp, a lobster or crab (7) |
| INSECTS | Small, six-legged invertebrate animals (7) |
| KRILL | Tiny marine invertebrate animals (5) |
| PORIFERA | Phylum of aquatic invertebrate animals that comprises the sponges (8) |
| MOLLUSCS | Invertebrate animals with no segments or limbs such as oysters or snails (8) |
| WORMS | Invertebrate animals having soft, long bodies; a new cave variety was found in the Bay of Alcudia, Mallorca last year and given the scientific name of Pollentia perezi (5) |
| ANNELIDA | Phylum of segmented invertebrate animals to which the earthworms and leeches belong (8) |
| SPINELESS | Vacillating invertebrate (9) |
| CENTIPEDE | Invertebrate with many legs (9) |
| MILLIPEDE | Many legged invertebrate (9) |
| ACHORDATE | Lacking a spinal cord; invertebrate (9) |
