FLOATING CRAR. 



185 



DEC A POD A. 



BRACHYURA. 



GRAPSIDM. 



FLOATING CRAB. 



Planes Linn^ana, Leach. 



? Cancellus marimis minimus qnadratus, 



? Grajysus testudinum, 

 ? Cancer mimitus. 



? Grapsus-i „ 



? „ cinereiis, 



? Nautilograjisus minutus 



Planes Linnceana, 



Sloane, Nat. Hist. Faun., II. p. 270. 



t. ccxlv. fig. 1. 

 Roux, Crust. Mediterr. t. vi. figs. 1 — 6. 

 Fabr. Syst. Ent. XI. p. 44.3, ejusd. 



Suppl. 343. Herbst, I. t. ii. fig. 



32. 

 Latr. Hist. Nat. Crust. VI. p. 68. 

 Say, Journ. Acad. Sc. Phil. p. 99. 

 Edw. Hist. Crust. II. p. 90. 

 Leach, MSS. Brit. Mus. 



The carapace in this species is nearly quadrate, with the 

 sides somewhat rounded, and shghtly contracted posteri- 

 orly : it is of a generally depressed form ; the surface 

 smooth hut not polished ; and there are on the posterior 

 part of the hranchial region several faint striae, occupying 

 the place of those which are so conspicuous in the genus 

 Grapsus, and some other forms of this family. The front 



