[1] This species features 55 pairs of legs in each sex and measures 34 mm in length.

These specimens were found in three different towns (Kamieskroon, Leliefontein, and Garies) in the Namaqualand region of the Northern Cape province of South Africa.

[3] This species features 55 leg pairs in both sexes and can reach 34 mm in length.

These pore-fields are triangular with a wide base on the anterior side and a rounded vertex pointed toward the posterior end.

Furthermore, each species features two pairs of lappets on the first maxillae, a prebasal plate, and a labrum without distinct teeth in the middle.

For example, the posterior end of the sternite on the last leg-bearing segment is rounded in M. cribrifera but truncated with a straight rear margin in M. rossi.