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of siender digits, about equal in length; the terminal digit is quite 
short, knobshaped. Sensory cups arranged in two lateral series, 
Fig. 49. Anchors of Protankyra uncinata. a. Symmetrical form ; b—c. unsymmetrical 
forms; d. unsymmetrical form of “Sy/inpta inæqualis”. 
very prominent, recalling, indeed, as stated by Den dy, sucker- 
bearing tubefeet. (Fig. 48). A brownish-yellow spot at the base 
between each pair of tentacles. The anchors (Fig. 49.a—d) measure 
Fig. 50. Anchorplates of Protankyra uncinata. a. From 
the posterior part of body; b. from anterior part; 
c. exceptionally complete anchor plate. 
ca. 0.3—0.4 mm. They are symmetrical, the arms more or less 
serrate or smooth, and the stock finely toothed, unbranched. The 
plates are irregular, with smooth holes, and with an imperfect bow, 
or none, across the posterior end. They are very conspicuously 
