Male brown basilisks (Basiliscus vittatus) can reach 61 centimetres (24 in) in length and females are somewhat smaller. Their three crests are on the head, along the body and along the tail. They usually appear in brown or olive brown with black stripes. The stripes are usually only on the flanks and on the dorsal crest. They also have a white stripe, which extends from the eyes to the rear legs. The males have a larger crest than the females.