Cyrioctea marken is known from three localities in Limpopo: Elsrus in Marken, Goro Game Ranch near Vivo, and Lhuvhondo [Nature Reserve] in the WesternSoutpansberg.
Male Cyrioctea marken have a total length of 6-7 mm. The carapace is almost diamond-shaped and very narrow in the eye region. Both the carapace and legs are brown. A distinctive feature is the presence of eight ocular spines, with the inner four being enlarged. The legs are long, with the front leg being the longest.
Conservation
The species is listed as Data Deficient because the female is unknown and its status remains unclear. It is protected in Lhuvhondo Nature Reserve and Goro Game Ranch, but more sampling is needed to collect females and determine the species' true range.