Spectral reflectance measurements of (a) mimic black/blue fangblenny, (b) juvenile cleaner fish, (c) olive fangblenny, (d) C. viridis, (e) brown fangblenny and (f) intermediate form of T. amblycephalum. Interestingly, in the mimic colour form the fangblenny does not exhibit a second ventrolateral stripe as shown in the non-mimic colour forms. Grey dashed lines indicate white (or close to white).