2^o STALK-EYED CRUSTACEA 



I. Uca cordata. 



K \^ 

 Uca cordata . . . . . . S. I. Smith. 



Cancel- cordatiis Linne, Herbst. 



Cancer nca Linne (?) 



Uca Icevis (?) Dana (?) 



Non iica Jina Guerin. 



Buck crab, Common crab\ 



A I • ' i^crbicc. 

 (local name) j 



The carapace is entirely naked and perfectly smooth 

 above, very broad, the greatest breadth being much 

 anterior to the middle. The regions are well marked. 

 The whole front is bordered by a sharply raised margin. 

 The antero-lateral border is indicated by a prominent, 

 finely toothed ridge. The orbits have an hiatus at the 

 external angle covered by a rounded lobe ; the inferior 

 margin is nearly straight, and is formed of two nearly 

 parallel ridges, the inferior of which is armed with a line 

 of small tubercles, and the superior is irregularly granular. 

 The inferior orbital regions are smooth, and are separated 

 from the buccal area by deep sulci. The inferior lateral 

 regions are swollen and nearly smooth, there being only 

 scattered granules on the anterior portion near the 

 inferior orbital regions. On each side of the buccal 

 area there is a high ridge which is armed with a {qv4 

 small tubercles. 



The external maxillipedes are smooth and naked on 

 the outside, and the inner edge thickly clothed with 

 coarse hairs. 



The first pair of legs unequal and large ; the fourth 

 joint is stout, triangular; both the inferior angles are 

 armed with stout spines, and the superior angle is 

 granular; the fifth joint is broad, smooth, and evenly 



