442 A. E. Yerrill — Decapod Crustacea of Bermuda. 



The following description is from large Dominica specimens. 

 The carapace is broad posteriorly, and much narrower in front of 

 the deep transverse groove ; the harder anterior portion is longer 

 than broad, with the posterior margin truncate medially, in front of 

 which there is an incised V-shaped groove, and some lateral oblique 

 ones ; front edge with three rounded lobes, the middle, one more 

 obtuse and less prominent than the others and obscured by hairs ; 

 a strong submarginal bent-bow-shaped groove ; sides of carapace 

 hairy ; middle part nearly smooth. Posterior part of carapace with 

 swollen, broadly expanded flanks, covered with oblique and divergent 

 grooves ; posterior margin deepl}^ emarginate. 



Figure 58. — Dardanus venosus; a, 2d ambulatory leg of left side, inner sur- 

 face ; b, the same, inner surface ; c, left cheliped, outer surface ; x about 

 lU. Phot. A. H. V. 



The chelipeds are unequal, the left being decidedly larger, with 

 the chela shoiter, much more robust, and differently ornamented. 

 The left cheliped has the raerus triquetral, the two lower angles 

 spinulose ; the upper one serrate with flat teeth ; the outer surface 

 has slight rug^ and small tufts of hairs, otherwise the surface is 

 smooth and glossy. The carpus is sharply spinulose above, five large 

 acute spines stand on the upper edge ; near the distal outer margin 



