†Raractocetus sverlilo sp. nov., female, holotype, SIZK L-814. A. Head and prothorax, dorsoventral view; B. Maxillary palporgan with branches; C. Pronotum and left elytron, dorsolateral view; D. Metaventrite and legs, ventrolateral view; E. Abdomen in posterior half, ventrolateral view; F. Abdominal terminalia with styli, lateral view. Scale bars: 0.5 mm (A, C); 0.1 mm (B); 1.0 mm (D–F). Abbreviation: r-m, radial-medial vein.