Colour patterns vary between species. "C. amphiloxa" has very small spots on the dorsal and lateral surfaces of the body, while "C. montana", "C. plumbea", "C. starnesi", and "C. umbrosa" have eye-sized spots on the lateral surfaces of the body. "C. arcana", "C. caiapo", "C. orinoco", "C. parma", "C. sarcodes" have a dark humeral spot (a spot in the shoulder region). "C. arcana", "C. montana", "C. pearsoni", "C. sandrae", "C. starnesi", and "C. umbrosa" have a posteriorly rounded, variably developed, bilobed patch of dark pigmentation at the base of the caudal fin. "C. fimbriata" have a band of dark pigmentation along the distal portions of the anal fin. "C. motatanensis" has a caudal fin darkly pigmented throughout other than for a narrow pale distal margin, while "C. orinoco" has dark pigmentation on the caudal fin particularly on the distal portions of the fin.