Figure 3
Pigment cells on the adult flanks of D. rerio (left) and D. albolineatus (right). Both species exhibit melanophores (mel), xanthophores (xan), and iridophores (irid). By contrast, only the D. albolineatus pigment pattern includes erythrophores (eryth). Iridophores are distributed widely over the flank of both species but are particularly distinctive within melanophore-free interstripe regions; the intracellular arrangement of iridophore reflecting platelets differs between melanophore stripes and interstripe regions (Hirata et al, 2003). Note the narrower and more irregular interstripe region of D. albolineatus as compared to D. rerio (whole fish are pictured in Figure 1).
