AUSTRALIAN MALACOSTBACA. 59 



convex, strongly embossed, and presenting on the gastric and 

 hepatic regions several small transverse crests. Front scarcely 

 inclined and divided into four rounded lobetf, of which the two 

 external are very small. Antero-lateral borders of the carapace 

 divided into four teeth, of which the two first are rounded and 

 compressed, and the two last triangular and carinated above. 

 Anterior legs granular. Length about one inch ; a few hairs on 

 the carapace and limbs. \_M.-Edw.~] 

 Australasia (Paris Museum). 



Genus Phymodius, A. M.-Edw. 

 Carapace narrow, almost regularly hexagonal, strongly lobu- 

 lated all over the surface. Front formed of two median rounded 

 lobes and two lateral teeth. Antero-lateral borders thick and 

 lobed. Basal joint of the antennse short and broad, united to a 

 process of the front. Fingers spoon-excavate. Ambulatory 

 legs long, slender, and spinulous above. 



98. Phyinodius ungulatus. A.M. 



Chlorodius ungulatus, M.-Edw., Hist. Nat. Crust., i., p. 400, 

 pi. xvi., fig. 6-8. Dana, U.S. Explor. Exped., Crust, i., p. 204, 

 pi. xi., fig. 8. 



Chlorodius areolatus, Adams & "White, Voy. of the "Samarang," 

 Crust., p. 41, pi. xi., fig. 3. 



Phymodius ungulatus, A. M.-Edw., Nouv. Arch, du Mus., t. ix., 

 p. 218. 



Carapace slightly convex and lobulated in all its extent, the 

 lobules punctate but not granular. Antero-lateral borders thick, 

 with five obtuse and rounded teeth, the first little conspicuous, 

 the second and third nearly equal and prominent, the fourth 

 smaller. Front divided into four lobules ; the two median broad 

 and rounded, the lateral smaller and narrower. Anterior feet 

 very long ; arm tubercular ; fore-arm covered with coarse 

 tubercles armed externally with an obtuse tooth. Hands strong, 

 unequal, ornamented with tubercles ; fingers black, this colour 

 extending on the hand to the base of the fingers. Ambulatory 

 legs long, granular, and hairy above. 



Port Denison, etc. A widely distributed species, chiefly 

 tropical. 



