LIVID SWIMMING-CRATl. 



109 



DEC APOD A. 



BRACHYURA. 



PORTUNIDJF.. 



LIVID SWIMMING-CRAB. 



Portunus holsatm. 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 carinae ; last joint of the fifth pair roundly oval, more than 

 half as broad as long. 



Portumis liolsatus, 

 lividus. 



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 



