A comparative study in colour patterns and behaviour in seven Asiatic Barbus species (Cyprinidae, Ostariophysi, Osteichthyes) A progress report. B. Conchonius. B. Nigrofasciatus. B. Tetrazona. B. Stoliczkanus. B. Cumingi. B. Phutunio. B. Gelius. By K. Kortmulder