FLOATING GEAR. 



135 



DEC A POD A. 

 DRACHYURA. 



GRAPSIDX. 



FLOATING CRAB. 



Planes Linnteana, Leach. 



? Cancellus marinus minimus qwdratus, 



? Grapsus testtidinum, 

 ? Cancer minutits, 



? Grapsus, 



ci'itereus, 

 ? Naulilograpsus minutus 

 /'lanes 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. 443, 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 slightly contracted posteri- 

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

 smooth but not polished ; and there are on the posterior 

 part of the branchial region several faint stria;, occupying 

 the place of those which are so conspicuous in the genus 

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



