CANCROIDEA. 239 



elongatis nudis complanatis armato et inter tuberculos hirsute, manu 

 supra cequd armatd. Pedes 8 postid hirsuti, articulis 4to btoque 

 supra gibbosis, 



Carapax somewhat convex, not areolate anteriorly, somewhat uneven 

 and short hairy ; front emarginate ; antero-lateral margin very short, 

 four-toothed, posterior tooth minute, the others rather stout; infe- 

 rior orbital margin three-toothed. Anterior feet subequal, carpus 

 armed with a few large tubercles, which are naked and flattened, 

 between the tubercles hirsute, hand above with similar tubercles. 

 Posterior eight feet hirsute, fourth and fifth joints above, gibbous. 



Plate 13, fig. 12 a, female, enlarged three diameters; b, under view 

 of part of front ; c, outer maxilliped. 



Madeira ? 



Length of carapax of female, three and one-fourth lines; greatest 

 breadth, four and one-fourth lines; ratio of length to breadth, 1:1-3. 

 The large, oblong, naked tubercles of the carpus lie along the surface, 

 and those above are only five or six in number. Three similar, but 

 more rounded, form the upper edge of the hand. The anterior part 

 of the carapax is covered with scattered hairs, which, however, may 

 disappear in larger specimens, if those under examination were young 

 individuals. On the carapax, a short distance from each of the two 

 prominent lateral teeth, there is a low tubercle. Of the three teeth 

 of the inferior orbital margin, the inner is large and flat, with a 

 rounded summit. 



PlLUMNUS TENELLUS. 



Carapax pedesque toll subtilissime omnino tomentosi. Carapax convexi- 

 usculus, non areolatus, fere quadratus, paulo transversus ; fronte emar- 

 ginato; margine antero-laterali perbrevi, 3-dentato, dentibus minutis 

 spiniformibus, posteriore minimo. Pedes antici non tuberculati, 8 

 po&tici pertenues, torso subtilwsime' pubescente. 



Carapax and all the feet covered with an exceedingly short tomentose 



