﻿1^0 昆 Ä 舉雜誌 第參 卷第參 號 



nowhere in the structure of the eves. The narrowest prolongation 

 of the hypodermal cells above mentioned, I suppose, seems to have 

 misled him as to take them as muscle fibrils. 



8. Tracheae under the eyes branch off narrow and long air sacs in 

 innumerable number through the basement or fenestrated membrane 

 into the eyes. They are in two layers between every two dorsal 

 eyes while one between ventral eyes. 



9. ViGiER makes out nerve fibers together with these tracheal sacs 

 between ommatidia. But the precent research proves that is not the 

 case. None of nerve fibers can be discovered outside the retinular 

 cells. 



Literature cited. 



Bedau, K. 1911. Das Facettenauge der Wasserwanzen. Zeitschr. Wiss. Zuol. 97. 

 Deeqener, p. 1913. Sinnesorgane. Handb. Eat. Schröders. 

 Dietrich, W. 1909. Die Facettenaugen der Dipteren. Zeitschr. Wiss, Zool. 92. 

 ExNER, S. 1891. Die Physiologie der Facettenaugen von Krebsen und Insekten. 

 Geyer, K. 19】 2. Beitrag zur Kenntnis der Facettenaugen der Hymenopteren. Zoo し 

 Anz. 39. 



GrenäCHER, H. 1879. Untersuchungen über das Sehergan der Arthropoden, insbeson- 

 dere der Spinnen, Insekten und Crustaceen. 



Hesse, R. 1901. Untersuchungen über die Organe der Lichtempfi ndung bei niederen 

 Fieren VII. Von den Arthropodenaagen. Zeitschr. Wiss. Zool. 70. 



John AS, W. 1911. Die Facettenaugen der Lepidopteren. Zeitschr. Wiss. Zool. 97. 



KiRCHHOFFER, O. 1907. Untersuchungen über die Augen der pentamereu Käier. Arch. 

 Biont. 2. 



ViGiER, M. 1904. Sur la presence d'un appareil d'accommodation dans les yeux 

 composes de certains insectes. Compt. Rend. Acad. 8c. Paris, 138. 



WatAse, S. 1890. Morphology of the compound eyes of Arthropods. Studies from the 

 Biol. Labor. Johns Hopkins Univ. 4. 



Zimmer, C. 1898. Die Facettenaugen der Ephemeriden. Zeitschr. Wiss. Zool. 6S. 



Zimmermann. K. 1914. Ueber die Facettenangen der Libel luliden, Phasmideu und 

 Mantiden. Zool. Jahrb. Anat. Ont. 37. 



Explanation of Plate. 



Abbreviations. 



bm, basement membräne ； C， corneal lens ； h, hypodermal cells ； k, crystal- 

 line cone ； kk, Sempör's nuclei ； n, nerye fibers ； Pzk, nuclei of principal 

 pigment cells ； pzk, nuclei of accessory pigment cells ； R, ivtiuula ； Rk, nuclei 

 of retinualr cells ； r, rliabdome ； t, trachea ； 言 k， nuclei of tracheal cells. 

 Fig. 1. Semidiagramatic view of a dorsal eye (Somatochlora Viridlaenea). 



