AUSTEALIAU- MAEACOSTBAOA. 133 



Carapace gnadrate, dilated, ornamented with compressed 

 granules which are larger towards the margin ; gastric region 

 with three tubercles ; cardiac region with a large tubercle cir- 

 cumscribed by a very narrow fissure ; posterior margin with two 

 tubercles ; anterior legs long, granulated. 



Bass' Straits (G-odeffroy Museum). 



Genus Actjeomoepha, Miers. 

 Carapace convex, with the antero- lateral margins arcuate as 

 in the Ccmcroidea. Buccal cavity broader and less decidedly 

 triangulate than is usual in the Oxystomata. Abdomen of the 

 male seven- jointed. 



255. Actseomorpha erosa. 



Actceomorpha erosa, Miers, Journ. Linn. Soc, Zool., Vol xiii., 

 p. 1, pi. xiv. 



Carapace everywhere granulated, the granules interspersed 

 with small deep pits. A large rounded elevation behind each 

 orbit, one on the cardiac region, and one on each branchial region 

 near the lateral margin. Anterior legs obscurely granulated, 

 robust ; arm very short, hand but little longer than the wrist ; 

 fingers straight, acute. Ambulatory legs short, nearly smooth, 

 laterally compressed. Tarsi very small, slender and acute. [Jf.] 



Port Curtis (Brit. Museum). 



Family II. MATUTIBuE. 

 Afferent canal to the branchiae entering at the side of the 

 pterygostomian region. Terminal joints of the external maxilli- 

 pedes concealed, third joint triangular, palp scarcely longer than 

 the second joint. Male genital appendices arising from the base 

 of the fifth pair of legs. Legs usually natatorial. 



G-enus Matuta, Fabr. 

 Carapace sub- orbicular, with a strong spine at the junction of 

 the antero-lateral and postero-lateral margins. Four posterior 

 pairs of legs with the last and penultimate joints expanded. 



256. Matuta viotrix. A.M. 

 Cancer victor, Fabr., Spec. Ins., ii., Append., p. 502 (1781) ; 



Ent. Syst, ii., p. 449 (1798). 



