. Report of the Canadian Arctic Expedition 1913-18. Scientific expeditions. 14 k Canadian Arctic Expedition, 1913-18 johanseni is subequal to that of E. herdmani, but the terminal joint is shorter than in herdmani. Again, in E. herdmani, joint 12 carries a long curved ungui- form spine commonly applied to the face of the antenna, though capable of being extended forwards. In E. johanseni, joint 12 carries a spine standing out at right angles to the face of the antenna, less than half the length of that of. Figs. 7-10. Details of right antenna of male. 7. E. johanseni, distal joints. 8. E. herd
. Report of the Canadian Arctic Expedition 1913-18. Scientific expeditions. 14 k Canadian Arctic Expedition, 1913-18 johanseni is subequal to that of E. herdmani, but the terminal joint is shorter than in herdmani. Again, in E. herdmani, joint 12 carries a long curved ungui- form spine commonly applied to the face of the antenna, though capable of being extended forwards. In E. johanseni, joint 12 carries a spine standing out at right angles to the face of the antenna, less than half the length of that of. Figs. 7-10. Details of right antenna of male. 7. E. johanseni, distal joints. 8. E. herdmani, same. 9. E. johanseni, spine on joint 12. 10. E. herdmani, same. herdmani, slightly curved and minutely bifid or flaring at the tip. Other spines occur on the proximal joints but only the spine on joint 12jhas specific value. In both species the right antenna pres&nts a proximal as well as a^distal swelling with short narrow joints 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 Canadian Arctic Expedition (1913-1918). Ottawa, F. A. Acland, Printer to the King
Size: 1448px × 1726px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1919
