File:Natural history (1908) (14777118614).jpg

Identifier: naturalhistory04brit (find matches)
Title: Natural history
Year: 1908 (1900s)
Authors: British National Antarctic Expedition (1901-1904) British Museum (Natural History) Fletcher, L. (Lazarus), 1854-1921 Bell, F. J. (Francis Jeffrey), 1855-1924
Subjects: Geology -- Antarctica Zoology -- Antarctica Botany -- Antarctica
Publisher: London, Printed by order of the Trustees of the British Museum
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Text Appearing Before Image:
der linkenKorperseite ist nnr das riickwiirtige, von den beiden Hoden nur der linke getroffeu. Vergr. 32-fach. FIG. 8.—Weibchen (aus Cyste i). Hinter dern vorigen, in der Gegend der Nephridialcaniile gefiihrterQuerschuitt. Nur der reuhte Nephridialcanal ist in demselben getroffen. Vergr. 32-fach. FIG. 9 und 10.—Manuchen (aus Cyste b). Aus Flachenschnitten combinirte und etwas schematisirteTeilbilder. In Fig. 0 sind die mehr dorsal gelegenen Organe, wie der Eruiihrungsapparat, dermilnnlicbe Geschlechtsappurat uudder Dorsalabschnitt des weiblicbeu Geschlechtsapparates, fernerdie Xephrostomata dargestellt. Fig. 10 zeigt den Aentralabschnitt des weiblichen Geschlechts-apparates mit den Ovarien, ferncr die Eudblasen mil dern uupaaren Eudabsclmitte der Xephridien.Zwischen den Nephrostornatis (tis in Fig. 9), und den in Fig. 10 mit * bezeichneten Durch-scbnittsstellen durch die Xephridien verlaufen in dorsoventraler Eichtung die kurzcn Xephridial-caniile. Yergr. fiir beidu Fig. 79-fach.
Text Appearing After Image:
6o ao .ns Aut del MYZOSTOMA. SIPUNCULOIDEA. By W. F. LANCHESTEI;, M.A.,Kings College, Cambridge. I MA si i H.OSOMA SOCIUM. THLS collection consists of some thirty specimens, all of small size, which weremostly taken )>y means of a net from holes in the ire. while the Discovery wasin Winter Quarters. One specimen, however, was captured with the dredge, thedepth being given as 100 fathoms. That the bulk of them belong to a singlespecies of Phascolosoma is quite certain, both from their general appearance andfrom a study of the relations of the various organs, though it is to be noted thatthese relations have been found to be far from invariable. Some half-a-dozen,however, have been the cause of considerable difficulty in the exact determination oftheir specific identity ; yet it has seemed best to include them under the abovespecies. In the first place, they agree in the main details of their structure withthe typical forms; and I have not been able to place them without hesitationun

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