Cunina prolifera Gegenbaur, 1854.
 A. Medusa adulta con actinule nella cavità gastro-vascolare. B. Organo sensoriale e relativa otoporpa. C. Margine della campana, con velarium e canale ad anello (p.c.). D. Tentacolo (dettaglio). E, F, G. Stadi di crescita di meduse nuotanti nella cavità gastro-vascolare. (A.G. Mayer, Stazione zoologica di Napoli, inverno 1907-08).
English: Pegantha rubiginosa syn. Eurystoma rubiginosum syn. Cunina prolifera Identifier: medusaeofworld02mayo (find matches) Title: Medusae of the world Year: 1910 (1910s) Authors: Mayor, Alfred Goldsborough, 1868-1922 Mayer, Alfred Goldsborough, 1868-1922 Subjects: Jellyfishes Cnidaria Publisher: Washington, D.C., Carnegie institution of Washington Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: ow finds them in Pegantha smaragdina, and indeed Stschel- NARCOMEDUS.A5—CUNINA. 479 kanowzeff partially bridges the gap in his detailed account of the development of the oogoniaand the oocytes and their nuclear phases. (See Zoolog. Centralblatt, Bd. 13, p. 676.) The medusa larvawhich develops in the stomach C.proboscidea is attached to the maternalentoderm by means of two of its own ectoderm cells which send out processes into the entodermof the mother medusa, thus constituting a very primitive placenta. The genital cells of the larval medusa, in the stomach of its mother, originate from asingle cell in the entoderm of the larva. This cell wanders into the ectoderm of the larvaand there it divides to form the genital cells of the developing medusa. Stschelkanowzeffs researches may be accepted with more reliance than those of Metschni-koff, for he bases his conclusions upon the study of serial sections, whereas Metschnikoffcarried out his observations largely upon macerated material. Text Appearing After Image: Fig. IIQ.—Cunina prolijera. A, Side view of mature medusa, with expanded bell-collar. B, One of the sensory-clubs andits otoporpa. C, Bell-margin; t>, velum; p. c, peronial ring-canal system. D, View of tentacle. E, F, G, Suc-cessive stages in growth of first sexual generation in stomach-cavity of swimming medusa. Drawn from life, by theauthor. Zoological Station, Naples, winter of 1907-08. 480 MEDUSJE OF THE WORLD. Cunina prolifera Gegenbaur. Cunina prolifera, Gegenbaur, 1854, Generationswechsel bei Medusen und Polypen, p. 56, taf. 2, fign. 24-31, Wiirzburg; 1856, Zeit. fur wissen. Zool., Bd. 8, p. 262.—Haeckel, 1879, Syst. der Medusen, pp. 313, 320.Eurystoma rubiginosutn, Kollikfr, 1853, Zeit. fur wissen. Zool., Bd. 4, p. 322.JEgineia rosea, Gegenbaur, i8c6, Zeit. fur wissen. Zool., Bd. 8, p. 261, taf. 10, fign. 6, 7.Cunina rhododaetyla +C. rubiginosa, Haeckel, 1864, Jena. Zeitschr. fiir Naturwissen., Bd. I, p. 335; Bd. 2, p. 263, taf. 9; 1865, Familie der Riisselquallen, p. Note About Images 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 work.