The Mecistocephalidae of the Japanese and Taiwanese islands (Chilopoda: Geophilomorpha) Author Published, First text Zootaxa 2007 2007-01-22 1396 1 84 journal article 1175­5334 Tygarrup Chamberlin, 1914 Mecistocephalids with 43 or 45 leg­bearing segments. An entire clypeal plagula, without a mid­longitudinal areolate stripe, extending along the lateral margins of the clypeus. Spiculum absent. Buccae without setae. Posterior alae of the labrum without longitudinal stripes, without a distinct series of marginal notches and without a marginal fringe. Coxosternum of the first maxillae divided, with a mid­longitudinal suture. Coxosternum of the second maxillae undivided; groove from the metameric pore reaching the lateral margin of the coxosternum. Telopodites of the second maxillae well developed, overreaching those of the first maxillae; claw present. Forcipular tergum only slightly wider than long, without a distinct mid­longitudinal sulcus. Sternal sulcus of trunk segments not furcate. Coxopleura of the last leg­bearing segment without a macropore distinct from other pores. Legs of the last pair as slender in males as in females, with one short subapical spine. Number of known species: 14, of which 1 in the considered area.