A figure half human and half reptile is read as the cold, instinctive part of a person showing through a familiar face. Dream books link it to distrust — the sense that someone, or something in you, is not what it seems.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.