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Body flattened dorso-ventrally. Disk small, with five long and narrow arms (~4.93 mm) (Fig. 5a, b). Epiproctal cone pronounced (this region of the disk and the surrounding areas are inflated) (Fig. 5a). Abactinal surface flat and covered by small paxillae disposed in regular rows (Fig. 5a). Paxillae with a central spinelet and 8–10 (usually 9) thick, marginal spinelets with blunts extremities. Superomarginal figs short (~1.14 mm) and narrow (~1.59 mm), covered by short and blunt spinelets, giving a granulose appearance to animals. Each of these figs has an elongate, conical and pointed spine (Fig. 5a, c), which has the same length from the interbrachial area to the extremity of each arm. Inferomarginal figs with two long, flattened and pointed spines, placed in parallel to each other. These figs are also covered by short and narrow spinelets. Towards the mouth the inferomarginal figs are covered by many flattened and pointed spines, which become elongated at the margins. Adambulacral figs with three long, flattened adambulacral spines, placed in parallel to each other, the median one being slightly longer than the other two (Fig. 5d). There are three to four long and flattened subambulacral spines, the median of which is longer and wider than the other two.

Colour. Reddish-brown dorsally, with conspicuous dark bands along the center of each arm (Clark and Downey 1992), or uniformly orange-red.


Creative Commons Attribution 3.0 (CC BY 3.0)

© Anne Isabelley Gondim, Martin Lindsey Christoffersen, Thelma Lúcia Pereira Dias

Source: ZooKeys

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