. Fig. 27. Amphioplus aciculatus, Part of oral side {a) and dorsal side {h). > 25. are rather broad, about half the length of the disk radius, and contiguous in their distal half. Outside the radial shields there is a rounded, knob-shaped plate which carries one to three small hyaline thorns. The ventral interradii are in one specimen somewhat sparsely covered with rounded scales, in the other almost naked. The buccal shields are rounded triangular, though with a small rounded outer lobe. The adoral plates are of rather unusual shape, with a straight inner side and a very broad outer
. Fig. 27. Amphioplus aciculatus, Part of oral side {a) and dorsal side {h). > 25. are rather broad, about half the length of the disk radius, and contiguous in their distal half. Outside the radial shields there is a rounded, knob-shaped plate which carries one to three small hyaline thorns. The ventral interradii are in one specimen somewhat sparsely covered with rounded scales, in the other almost naked. The buccal shields are rounded triangular, though with a small rounded outer lobe. The adoral plates are of rather unusual shape, with a straight inner side and a very broad outer lobe, widely separating the first lateral plate from the buccal shield. The outermost mouth papilla is small, scale-like, the second long, pointed, spine-like; the third is short, slightly pointed. The infradental papillae of moderate size, a little pointed. First ventral plate rather large, with convex distal edge. The following ventral plates distinctly longer than broad, contiguous, with sides and outer edge forming a slight re-entrant curve. Dorsal arm plates almost circular, not contiguous. Arm spines four, on the joints, very slender and pointed. One small tentacle scale. No indication of particular colour.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
