. Bulletin of the Natural History Museum Zoology. ORLOVA-BIENKOWSKAJA. Fig. 7 S. vetulus, antenna. A, general view, B, curved seta of exopod distal segment, C, inner side of basipod, distal part. D. outer side of basipod, distal part, E, basipod proximal part. MATERIAL EXAMINED. Neotype. Type material of junior synonyms: 5. vetulus angustifrons Lilljeborg, 1900: Lectotype (designated here): Sweden, Uppsala, 9. 10. 1882, leg. Lilljeborg: MPA: 9 ad. (ZMU, 399). Paralectotypes collected with lectotype: MPA: 13 9 9ad., 33 9 9juv., 7 9 9e., 5cfcf(ZMU, 399). Other speci- mens: More than 2000 sp
. Bulletin of the Natural History Museum Zoology. ORLOVA-BIENKOWSKAJA. Fig. 7 S. vetulus, antenna. A, general view, B, curved seta of exopod distal segment, C, inner side of basipod, distal part. D. outer side of basipod, distal part, E, basipod proximal part. MATERIAL EXAMINED. Neotype. Type material of junior synonyms: 5. vetulus angustifrons Lilljeborg, 1900: Lectotype (designated here): Sweden, Uppsala, 9. 10. 1882, leg. Lilljeborg: MPA: 9 ad. (ZMU, 399). Paralectotypes collected with lectotype: MPA: 13 9 9ad., 33 9 9juv., 7 9 9e., 5cfcf(ZMU, 399). Other speci- mens: More than 2000 specimens ( 9 9 ad., 9 9 juv., 9 9 e.,cf <f) from 30 localities (Fig. 21) in Denmark, Greenland, Poland, Bul- garia, European Russia, Ukraine, Georgia, Morocco, deposited in AC, ZMC, ZICW. Some specimens are selected from the samples from ZIPD. Diagnosis. Measurements. 9 9 ad.: 9 9e.: 1,2- l,9mm,c?C?: ,3mm. Female. Dorso-posterior valve prominence short, with narrow base and large diameter (Fig. 18). Its diameter greatly exceeds its length (Fig. 2). Dorsal valve margin low, not protruding backward. Depres- sions above and below dorso-posterior prominence small and shallow. Ventral head margin straight or slightly concave, sometimes with small prominence. Deep depression on ventral head margin near rostrum. Ocellus Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Natural History Museum (London). Andover : Intercept
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