AUSTRALIAN MAIACOSTBACA. 137 



Cancer astuta, Herbst, t. iii., p. 45, pi. lv., fig. 6. 



Carapace much, elongated, flat, almost completely smooth 

 above, but presenting a few deep grooves, and almost devoid of 

 hairs. Front very prominent and widely excavated, so as to 

 present two triangular, flattened teeth ; neither tooth nor dilation 

 above the internal orbital angle ; tooth of the lower orbital 

 border rudimentary ; buccal orifice terminating in the mesial 

 notch of the front. Hands of the male short, thick, and much 

 swollen. Abdomen without dentiform tubercles. [M.-J3.'] 



Port Denison. Found also in Asiatic Seas. 



262. Dorippe quadridentata. A.M. 



Dorippe quadridentata, Fabr., Ent. Suppl., p. 361 ; M.-Edw., 

 Hist. Nat. Crust., ii., p. 156 ; Latr., Hist. N"at. des Crust., t. vi., 

 p. 125 ; Encycl., pi. 306, fig. 1 ; Desmarest, Cons., p. 135. 



Cancer Frascone, Herbst, t. i., p. 192, pi xi., fig. 70. 



Dorippe atropos, Lam., Hist, des An. sans Vert., t. v., p. 245. 



Dorippe nodulosa, G-uerin, Iconogr., pi. xiii., fig. 2. 



Carapace greatly elongated anteriorly, very unequal, and 

 ornamented with twelve to fifteen rounded tubercles. Front 

 lamellar, prominent, and forming two triangular teeth ; external 

 orbital angle very prominent, and the internal portion of the 

 lower orbital border forming a large tooth pointed and denticu- 

 lated below, which projects much in advance of the front, and 

 almost reaches the level of the origin of the flagellum of the 

 antennse. Anterior extremity of the buccal orifice not reaching 

 to the border of the front. Anterior legs granular in the male ; 

 second and third segments of the abdomen each armed with 

 three dentiform tubercles disposed in transverse rows. In the 

 male a large tooth and two very small ones on the fourth segment 

 of the abdomen. [M.-E.~\ 



Port Denison. 



G-enus Ctmopolia, Eoux. 



Afferent opening of the branchial cavity situated as usual 

 between the posterior border of the pterygostomial region and 

 the base of the first pair of legs. Last pair of legs very small ; 

 fourth pair like the preceding. Eyes retractile. [Jf.-J?.] 



