120 AUSTRALIAN MALACOSTBACA. 



225. Leucosia Chevertii. 



Leucosia Chevertii, Haswell, 1. c, p. 47, pi. v., fig. 2. 



Carapace rhomboidal, polished, with a rounded elevation on 

 the hepatic region, which is free from granulations. Front 

 nearly entire, but obscurely trilobed. Thoracic sinus, as in L. 

 Whitei, deep, strongly waved above, with a granulated inferior 

 margin. The postero-lateral margin, as in that species, fringed 

 with a line of hair. Maxillipedes and limbs as in L. Whitei, 

 except that the wrist has fewer granules. Abdomen (male) 

 broadly triangular, with a deep median sulcus at its proximal 

 end. Colour of the carapace very light brown, with a blush of 

 dark brown on each hepatic region, and a lighter brown mark on 

 the gastric and genital regions ; the tubercles of the arms pink, 

 and the fingers red at the base. 



Cape G-renville ; Darnley Island (Macleay Museum). 



226. Leucosia Leslii. 



Leucosia Leslii, Haswell, 1. c., p. 48, pi. vi., fig. 1. 



Carapace rhomboidal, the lateral angles projecting somewhat ; 

 surface with scattered punctations on its anterior half ; hepatic 

 region scarcely convex. Front produced, its anterior border 

 obscurely four-lobed. Thoracic sinus rather shallow, elongated, 

 not defined ; its anterior border not tuberculated ; its cavity 

 occupied by five large tubercles. Lateral border of carapace with 

 a row of tubercles, which are small anteriorly, large and coalescent 

 above the insertion of the arms, stopping short a little behind 

 that point ; postero-lateral and posterior border with a row of 

 small, close-set tubercles. Anterior limbs rather longer than the 

 carapace ; upper surface of arm with a group of small tubercles 

 at the base, and scattered larger tubercles on the proximal half ; 

 inner surface nearly covered with close-set tubercles ; outer 

 border with a row of large tubercles ; inferior surface almost 

 smooth ; inner border of hand with a row of small tubercles. 



Darnley Island, Torres Straits (Macleay Museum). 



227. Leucosia polita. 



Leucosia polita, Hess, Archiv. fiir Natur., xxxi., p. 155, pi. vi., 

 fig. 4 (1865). 



