. Fig. 20. Notocrinus mortenseni. a, centrodorsal and proximal parts of three rays, xy. b, cirrus, x 7. f, first twelve brachials of an arm with pinnules, x-j. d, brachials of the middle part of an arm, x 11. i\ distal brachials, x 11. /, ambulacral skeleton of a distal pinnule, x 40. g, ventral view of a portion of an arm of a female in the region of the genital pinnules; in the upper half the skin has been cut away to show the ovaries and brood-pouches, x 7.

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti