130 AUSTBALIA1T MALACOSTBACA. 



248. Oreophorus rugosus. A.M. 

 Oreophorus rugosus, Stimpson, Proc. Acad. Nat. Sci. Philad., 



1858, sp. 259 ; A. Milne-Edwards, Ann. de la Soc. entom., 1865, 

 t. v., p. 152, pi. vi., fig. 3 ; Nouv. Arch, du Mus., t. x., p. 49. 



Carapace sub-pentagonal ; antero-lateral borders greatly- 

 developed, forming a marked angle at the level of the anterior 

 branchial lobe, slightly undulated ; surface covered with deep 

 reticulations near the antero-lateral borders and the branehio- 

 cardiac grooves ; branchial regions prominent, strongly dilated, 

 and more elevated than the gastric and cardiac regions. Cheli- 

 pedes nodular and slightly granular ; hand rugose ; fingers long, 

 curved inwards, and ornamented with fine denticulations on their 

 cutting edges. 



Port Denison (W. A. H.). Pound also on the coasts of China 

 and New Caledonia. 



Genus Tios, Adams and White. 



Carapace much wider than long, smooth, the lateral regions 

 concave with raised edges, with an anterior and posterior groove ; 

 lateral edges divided into three lobes ; the middle region with a 

 strong vertical ridge ending- behind in an obtuse tubercle, and 

 on each side with two perpendicular, three-sided elevations. 

 Front entire, rounded, reflexed. Chelipedes with the third joint 

 triangular, the edges tuber culiferous, the fourth joint with two 

 tubercular ridges on the upper surface ; fifth joint with a tuber- 

 cular keel above ; claws slightly curved at the ends. Abdomen 

 of female oval, tuberculated, seven- jointed, surrounded by an 

 elevated ridge. [A. Sf W.] 



249. Tlos muriger. A.M. 



Tlosmwriger, Adams & White, Zoology of H.M.S. "Samarang," 

 Crustacea, p. 58, pi. xiii., fig. 2. 



Carapace smooth ; lateral regions deeply excavated ; side- 

 margins with three lobes, hind margin excavated, a two-ridged 

 lobe with numerous small tubercles at the base. 



Port Molle, 14 fath. (W.A.H., H.M.S. "Alert.") Pound 

 also on the coast of Borneo. 



