Medusae of the world . 288. 288. Fig. 287.—Solmaris solmaris (.?Egineta solmaris), after Gegenbaur, in Zeit. fur wissen. Zool., B. 8d. Fig. 288.—Solmaris(.Egineta)corona, after Keferstein and Ehlers, 1861. Entire medusa and one of its marginal sense-organs. Fig. 289.—Solmaris coronanlha, after Haeckel, in Syst. der Medusen=S. corona. StschelkanowzefF, 1905, has made a further study of the development which wouldnecessitate some modification of the account given by Maas. StschelkanowzefF states that NARCOMEDUS^E—SOLMARIS. 437 the first two divisions are meridional and the 8-cell stage consists
Medusae of the world . 288. 288. Fig. 287.—Solmaris solmaris (.?Egineta solmaris), after Gegenbaur, in Zeit. fur wissen. Zool., B. 8d. Fig. 288.—Solmaris(.Egineta)corona, after Keferstein and Ehlers, 1861. Entire medusa and one of its marginal sense-organs. Fig. 289.—Solmaris coronanlha, after Haeckel, in Syst. der Medusen=S. corona. StschelkanowzefF, 1905, has made a further study of the development which wouldnecessitate some modification of the account given by Maas. StschelkanowzefF states that NARCOMEDUS^E—SOLMARIS. 437 the first two divisions are meridional and the 8-cell stage consists of 2 small cells at the animalpole, 2 large cells at the vegetative pole, and 4 cells in the equatorial zone. The morula con-sists of 32 cells and there is a large cell in its center which is derived from one of the largevegetative cells. This large cell gives rise to a part of the entoderm of the blastula, the remain-ing portion of the entoderm being derived from the superficial blastoderm as described by Ma
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
