CRUSTACEA. 



158 



0-04 of au inch; breadth, 1-38 inches; ratio, 1 : 146 The granulations 

 of the surface are somewhat elongated on the anterolateral reg.om 

 The areolets are distinct. 2 F is narrow; 1 M is nearly quadrate and 

 distinct from 2 M ; 2 M is divided longitudinally; L, 6 L are hardly 

 ; ate aTd coalesce nearly with 4 L; BL, 2 LI L are distinct. 

 The posterior region is flat without subdivisions. The eight posterior 

 less are very prominently crested, and the outer surface is granulous, 

 as figured by Ruppell. The lateral outline of the carapax ,s nearly 

 regularly rounded, there being but a slight angle where the border 

 terminates. 



Xantho granulosus, Ruppell, Krabben cles rotlien Meeres, 24, pi. 5, f. 3. 

 jEgle granulosus, De Haan, Faun. Japon., 17. 

 Cancer Umhatus, Edwards, Crust.,, i. 377, pi. 10, f. 1. 



Atergatts marginatus (Ruppell), De Eaan. 



From the Sooloo Sea. 



The specimen is a small one, of a reddish colour, with a white, 

 entire border. Length of carapax, nine and a half lines; greatest 

 breadth, fourteen and a half lines; ratio of length to breadth, 1 : 153. 

 The fingers are quite short, and the hands are very nearly equal. 

 The tarsus has a few hairs below, and there is a short tuft on the 

 angle of the lower margin of the preceding joint. 



Carjpilius marginatus, Ruppell, Krabben des rotlien Meeres, p. 15, pi. 3, f. 4. 



Cancer marginatus, Edwards, Crust., i. 375. 



Atergatis marginatus, De Haan, Crust. Faun. Japon; Krauss, Siidaf. Crust., p. 28. 



Atergatis integerrimus, Lawk. 

 East Indies. 



Length of carapax of a male, two inches and five lines ; greatest 

 breadth, three inches nine and one-fourth lines; ratio of length to 

 breadth, 1 : 1*56. 



