154 CRUSTACEA. 



Valparaiso ; also Illawarra, New South Wales ? 



This large species is well described and figured by Bell (Trans. Zool. 

 Soc., i. 335). The ratio of length to greatest breadth of carapax in 

 two females, 1 : 45 and 1 : 1'5. The colour of a living specimen, four 

 inches in breadth, was deep reddish brown, the legs inclining towards 

 purple. The third joint of the eight posterior legs in the same speci- 

 men has a line of short hairs along its upper edge, and the pterygos- 

 tomian region is pubescent. The regions and areolets are faintly 

 apparent. The frontal region is very short; 1 M and 2 M are not 

 separate, and together they form a slightly-swelling prominence either 

 side of the medial line ; 3 M is also distinct, but is hardly separate 

 from 4 M, which is rather large; two minute punctations mark the 

 limits between them. 5 L, 6 L are also distinct, although not shown 

 in Bell's figure, and barely distinguishable in the largest specimens, 

 such as afforded his description. 1 P is nearly rhombic approaching 

 quadrate. The antero-lateral margin is unevenly dentate; but the 

 teeth pertain to ten broad and short lobes. Of these lobes the ninth 

 is S, or the fifth normal tooth ; and the carapax has its greatest 

 breadth as usual, in this line. The fourth normal (T), corresponds 

 to the eighth, seventh, and sixth lobes; the third normal (N), to the 

 fifth and fourth; the second normal (E), to the third and second; and 

 the first (D), to the first or orbital tooth. The dentations on the 

 margin of the lobes are fewest and much the largest on the largest 

 individuals. The peduncle of the eyes is continued upward on one 

 side to the tip nearly, where it terminates in a low point. 



The Illawarra specimen is only a carapax ; but shows all the cha- 

 racters of the Edwardsii both in its surface and the marginal teeth. 

 The limit of the posterior tooth (or tenth), is scarcely observable from 

 above, but is apparent on the under side. The length is one and 

 three-fourths inches; greatest breadth, one and two-thirds inches; ratio 

 of length to -breadth, 1 : 1-5. The granulation of the surface is pre- 

 cisely of the same character as in the Edwardsii, and the eyes are 

 tipped in the same manner. The marginal dentation is smaller, but 

 this appears to be due to the smaller size of the specimen. This is 

 the Cancer Novi-Zealandise of A. White (Crust., Erebus and Terror, 

 Plate 1, fig. 5). 



