FIGURE 2. Rhacophorus penanorum. A, Stage 31 in Description of three Rhacophorus tadpoles (Lissamphibia: Anura: Rhacophoridae) from Sarawak, Malaysia (Borneo)

FIGURE 2. Rhacophorus penanorum. A, Stage 31 tadpole in lateral view (ZMH A10168, 394Z). Note the black spots and oranges margins of tail fins. B, Same individual in dorsal view, showing colouration features such as the golden iridocyte field between eyes. C, Same specimen, ventral view. The cup-like oral sucker is attached to the glass of the aquarium. The ventral colouration pattern (opaque silvery abdominal pigmentation, medial vena abdominalis/streak visible, bright red gills visible through skin and partly covered by silvery iridocytes) has also been found in other Bornean rheophilous tadpoles within the genus and is not unique to R. penanorum (UNIMAS 8954). D, R. penanorum adult male, day colouration. E. R. penanorum adult male, noctural colour morph.