. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. JACKSON: STATUS OF BOTHRIOCIDARIS 489 Dr. Mortensen says (p. 119): "that in Echinoids the genital plates always lie adapically to the ocular ; One might feel that this. w:: Figs. 4-5. Arbacia punciulaia (Lam.). Woods Hole, Mass. X 4. Variants. Fig. 4.— Oculars V, IV meet and shut out genital 4 from corona; genital 4 imperforate. Fig. 5.— Similar to fig. 4, but genital 4 perforate, (.\fter Jackson, 1927, figs. 25, 26.). Please note that these images are extracted from scanned page images that may have
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. JACKSON: STATUS OF BOTHRIOCIDARIS 489 Dr. Mortensen says (p. 119): "that in Echinoids the genital plates always lie adapically to the ocular ; One might feel that this. w:: Figs. 4-5. Arbacia punciulaia (Lam.). Woods Hole, Mass. X 4. Variants. Fig. 4.— Oculars V, IV meet and shut out genital 4 from corona; genital 4 imperforate. Fig. 5.— Similar to fig. 4, but genital 4 perforate, (.\fter Jackson, 1927, figs. 25, 26.). 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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