442 A. E. Verrill Decapod Crustacea of 



The following description is from large Dominica specimens. 

 The carapace i> lir<>:nl posteriorly, :uitl much narrower in front o| 

 the deep transverse- groove; tin- lianlrr anterior portion i< longer 

 than broad, with the posterior margin truncate medially, in 1'nml of 

 which there is an incised \'->haped groove, and some lateral ol>li<pie 

 ones; front edge with three rounded lolte-.. the middle one more 

 obtuse and less prominent than the <>ther> and (lsciired by hair- : 

 a strong subniarginal bent -bow-shaped groove; sides <d' carapace 

 hairv : middle part nearly smooth. Posterior part of carapace with 

 swollen, broadly expanded tlank-. co\ ereil with obi i. pie and divergent 

 grooves ; posterior margin deeply emarginate. 



Figure 58. Dm-iimm* uenosus; . '^cl ambulatory leg of left side, inner sur- 

 face; 6, the same, inner surface ; c. left cheliped, outer surface; x about 

 li a '. Phot. A. H. V. 



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

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



/ 



The left cheliped has the raerus tri<pietral, the two lower angles 

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

 has slight rugne 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 



