Abstract
A new species of Cyrtophora is described on the basis of specimens collected from Trang Province, Thailand, under the name of Cyrtophora sextuberculata n. sp. This species can be distinguished from other congeners by the elongated abdomen having three pairs of tubercles. The shape of epigyne of this species resembles that of C. crassipes (Rainbow 1897), but the abdomen of the latter has only a pair of dorsal tubercles and bifurcated posterior end. The male of the latter species is still unknown.
