GENUS OCYPODE. 73 



distinct species, refeiTcd by authors to this one; these 

 he has accordingly separated under the names vocanSy, 

 maracoani and pugi/ator, the last of which, judging 

 from the very short description of that author, appears 

 to be the same with the one here described, although he 

 gives, as its habitat, the American ocean. In manuscript 

 I had named it Citharoedicus, but averse from an unneces- 

 sary multiplication of names, I have adopted the above, 

 notwithstanding the objection stated. It belongs to the 

 <jenus Uca of^Dr. Leach. 



3. 0. reticidatus. Thorax quadrate, a little transverse, 

 with oblique, hardly elevated rugce on each side behind; 

 hands rather large, equal, ovate, punctured, fingers smooth; 

 tibia of the four hind feet, thickly clothed with fine incum. 

 bent hair; body laterally reticulated. 



Inhabits muddy salt marshes. 



Plate 4., Jig. 6. 



Thorax with numerous, minute, irregular punctures^ 

 an impressed pyriform line on the middle, which is narrow- 

 ed and more deeply impressed on the clypeus, behind this 

 is a transversely oval one, from which proceeds two lines to 

 the base of the thorax, a line arises from the interior orbits 

 of the eye and curves to the pyriform one; clypeus trun^ 

 cated, with an abbreviated, longitudinal line each side; a 

 lateral obtuse sinus more or less distinct near the anterior 

 angles of the thorax each side, anterior angles acute; tip 

 of the clypeus and labrum granulated, the granules of 

 the latter much larger; cheeks and sides of the body^ 

 with numerous, parallel, longitudinal lines of granules, 

 granules in pairs and surmounted at regular distances by 

 perpendicular, equal hairs, which are infiected and hori- 



