. Zoology : for students and general readers . Zoology. Fiff. 44.—Gastrula of an Aure- lia-Iike Afedusa. a, primitive month; b, gJlstro-vasculav cavity; c. ectoderin; d, ejidoderm.— After Fig. 45.—Scyphistoma of Anrelia fiaviiluia^ at different ages; magni- lied.—After Agaseiz. separate nerve-tracts which unite with the sense-organs in a special elevation of the edge of the disk, forming so-called sense-bearers, which alternate with the eight tentacles. Avrelia aurita has a similar disconnected nerve system.* Eimer confirms these discoveries, and states that the ner- vous syste


. Zoology : for students and general readers . Zoology. Fiff. 44.—Gastrula of an Aure- lia-Iike Afedusa. a, primitive month; b, gJlstro-vasculav cavity; c. ectoderin; d, ejidoderm.— After Fig. 45.—Scyphistoma of Anrelia fiaviiluia^ at different ages; magni- lied.—After Agaseiz. separate nerve-tracts which unite with the sense-organs in a special elevation of the edge of the disk, forming so-called sense-bearers, which alternate with the eight tentacles. Avrelia aurita has a similar disconnected nerve system.* Eimer confirms these discoveries, and states that the ner- vous system in these Hydrozoa arises from the 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York : Henry Holt


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1879