Phascolion botulus, Selenka, E., 1885

Selenka, E., 1885, Report on the Gephyrea collected by H. M. S. Challenger during the years 1873 - 1876, Report on the Scientific Results of the Voyage of H. M. S. Challenger During the Years 1873 – 76, Zoology 13, No. 36, pp. 1-24 : 18

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