Taxonomic review of the genera Trigoniophthalmus Verhoeff and Coryphophthalmus Verhoeff (Archaeognatha, Machilidae) with descriptions of two new species of the genus Coryphophthalmus from Serbia Author Kaplin, Vladimir text Zootaxa 2019 2019-08-28 4661 2 371 384 journal article 25874 10.11646/zootaxa.4661.2.6 967d8db9-3d1d-4c2d-89df-86d85afc6f88 1175-5326 3379524 ADCB9EAA-9C41-49A7-B4E8-59A4185DC1A3 = Trigoniocellus Kaplin, 2010 , in part). Diagnosis. Urocoxites II–IV with 2 + 2 exsertile vesicles. Description. Body length 7–12 mm . Hypodermal pigment on head, thorax, coxae, distal part of abdomen, or absent. Paired ocelli subtriangular to pyriform. Cercus with one support apical spike. Urocoxites II–IV with 2 + 2 exsertile vesicles. Two described subgenera and 25 species ( Table 1 ).