UV1D SWIMMING-CRAB. 



109 



DECAPOD A. 



BRACHYURA. 



PORTUNIDM. 



LIVID SWIMMING-CRAB. 



Portunus holsatus. Fabr. 



Specific character. Carapace somewhat depressed, minutely granulated ; latero- 

 anterior margin with five strong flattened teeth ; front with three nearly equal 

 teeth ; posterior margin very largely emarginate at the angles for the hinder feet ; 

 hands with denticulate carinas : last ioint, of tho fifth nnir ronndlv oval, more than 



posterior margin very largely emarginate at the angles for the hinder 

 hands with denticulate carinae ; last joint of the fifth pair roundly oval, more 

 half as broad as long. 



Portunus Jtol-satus, 

 lii'idus, 



FABR. Suppl. p. 336. (Edw.) EDW. Hist. Nat. Crust. 



I. p. 442. 

 LEACH, Malac. Brit. pi. ix. figs. 3. 4. 



IT is extremely difficult to assign any very satisfac- 

 tory distinctive character to this species. Its great resem- 

 blance to P. marmoreus, at least to all the specimens 

 which I have in my possession, fully justify the belief 



