AUSTRALIAN MALACOSTBACA. 63 



104. Ozius truncatus. A.M. 



Ozius truncatus, M.-Edw., Hist. Nat. Crust., i., p. 406, pi. xvi., 

 fig. 11 ; Dana, U.S. Explor. Exped., Crust., i., p. 230, pi. xiii., 

 fig, 4 ; Miers, Cat. Crust., N.Z., p. 21. 



Xantho deplanatus, "White, Jukes' Voy. H.M.S. " Fly," p. 337. 



Carapace not very wide, nearly flat above and slightly tuber- 

 culated in front. Front very wide, nearly straight, slightly 

 sinuous, without a transverse groove in front ; orbits without 

 distinct fissures ; antero-lateral margins short, divided into four 

 or five wide obtuse lobes. Pterygostomian regions granulous ; 

 third joint of the external maxillipedes with the anterior margins 

 notched. Basal joint of the external antennae very oblique, 

 flagellum rudimentary, the internal orbital hiatus very narrow. 

 Colour brownish. Length If in., breadth 2 in. 



Port Jackson, etc. Found also in New Zealand. 



105. Ozius lobatus. 



Ozius lobatus, Heller, Reise der Novara, Crust., p. 21, pi. ii., 

 fig. 4. 



Carapace transverse, broad, anteriorly a little areolate, the 

 areolets granulated, posteriorly smooth, punctate. Front of four 

 lobes, the median pair larger than the lateral. Antero-lateral 

 margin shorter than the postero-lateral, quadri- dentate, the two 

 anterior teeth broad, obtuse. Anterior limbs unequal, the carpus 

 and propodos granulated externally, naked ; fingers moderate, 

 posterior legs hirsute. [Seller.'] 



Sydney (Heller). 



Probably identical with the preceding. 



106. Oxius rugulosus. A.M. 



Oxius rugulosus, Stimpson, Proc. Acad. Nat. Sci. Philad., 

 1858, p. 23, No. 83 ; Heller, 1. c, p. 22, pi. iii., fig. 1 ; A. Milne- 

 Edwards, Nouv. Arch, du Mus., t. ix., p. 240, pi. xi., fig. 3. 



Carapace convex, lobulated in front, and covered with five 

 granulations, replaced sometimes behind by punctations. Front 

 quadridentate. Antero-lateral borders divided into five thick 

 and little prominent lobes, the fifth being smaller than the 

 preceding. External orbital angle not dentiform. Anterior 



