CANCROIDEA. 163 



ejus portimw externd etiam partim subdivisd, 3 M tripartite!,, 1 P tri- 

 partitd ; margine antero-laterali Icmgo, leviter <j-lobato, postero-laterali 

 brevi, valde concavi. Pedes brevissime' hirsuti; antid subcequi, grq- 

 nulosi, tnanu carpoque paulo nodosis, digitis striatis, scabris, brevis- 

 sime hirsutis, bene triangulato-dentatis. Pedes postici granulosi dense 

 brevissimeqtie hirsuti. 



Near X. liirtissimus or speciosus. Carapax broader transverse, below 

 very short hirsute, above areolate throughout and very minutely 

 hirsute, the hairs hardly longer than the granules, areola 2 M sub- 

 divided, and its outer part also in part subdivided ; 3 M tripartite ; 

 cardiac tripartite; antero-lateral margin long, faintly five-lobed, pos- 

 tero-lateral short, very concave. Feet very short hirsute; anterior 

 pair subequal, granulous, hand and carpus somewhat nodose, fingers 

 striate, very short hirsute, regularly triangulato-dentate. Posterior 

 feet granulous, densely and very short hirsute. 



Plate 8, fig. 1 a, outline of carapax, enlarged two diameters; b, sur- 

 face more enlarged, showing tubercles and hairs. 



Sooloo Sea, or Balabac Straits. 



Length of carapax of a female, 5 - 9 lines; greatest breadth, 9-33 lines; 

 ratio of length to breadth, 1 : 1'58. This is a much broader species 

 in proportion to its length than either the Jiirtissimus or the speciosus, 

 and is smoother than the former, though not as smooth as the latter. 

 The granulations of the eight posterior legs are scarcely apparent 

 unless the dense hirsute covering is removed, yet this hirsute covering 

 is extremely short. The furrows appear to be hirsute, unless exa- 

 mined with care, when the hairs of the furrow are found to proceed 

 mostly from the edges of the areolets. The lobes of the antero-lateral 

 margin are rather indistinct. The fingers have six or seven teeth, 

 which, excepting the terminal, are thin and triangular, and just equal 

 the intervening spaces, into which the teeth of the opposite finger fit. 

 The pterygostomian region has furrows as in the Jiirtissimus. 



The rufopunctatus, according to Edwards, has five large rounded 

 teeth to the antero-lateral margin, and the postero-lateral margin is 

 nearly straight; moreover, the pterygostomian region is without fur- 

 rows. 



