| Rating | Solver | Clue |
|---|---|---|
| REPTILES | Cold blooded vertebrates | |
| HAEMATOCRYA | The cold-blooded vertebrates. Same as Hematocrya. | |
| INHUMAN | Cold-blooded | |
| UNEMOTIONAL | Cold-blooded | |
| HEARTLESS | Cold-blooded | |
| REPTILIAN | Cold-blooded | |
| HAEMATOCRYAL | Cold-blooded. | |
| HEMATOCRYA | The cold-blooded vertebrates, that is, all but the mammals and birds; -- the antithesis to Hematotherma. | |
| MAMMALS | Warm-blooded vertebrates | |
| REPTILE | Cold-blooded animal | |