Smith.! 



288 



[February 3, 



and somewhat spiniform; lateral edges thin, not at all rounded, 

 and with a very distinct tooth on the anterior lobe of the branchial re- 

 gion, which, in young specimens, projects forward as a sharp spine. 



Chelipeds much as in the last species, but the meros more strongly 

 toothed. Ambulatory feet slightly hairy on the terminal segments. 



Coloration very much as in T. formosa but the fingers a little 

 darker. 



Several specimens give the following measurements : — 



Sex. 

 ? 



Length of 

 carapax. 



Breadth of 

 carapax. 



Ratio. 



Breadth at outer 

 angles of orbits. 



Breadth of front 

 between orbits. 



7-2 mm. 



8-6 mm. 



1:1-19 



8-6 mm. 



4-9 mm. 



8-4 " 



9-8 " 



1:1-17 



9-4 " 



5-1 " 



9-8 " 



11-3 " 



1:1-15 



11-1 " 



6-6 " 



11-6 " 



13-5 " 



1:1-16 



12-6 " 



7-4 " 



6-8 " 



8-0 " 



1:1-18 



7-9 " 



4-8 " 



11-6 " 



13-8 " 



1:1-19 



13-1 " 



7-6 " 



It appears to be a much larger species than T. formosa. 



Quadrella nitida, sp. nov. 



Caraj>ax smooth, convex in two directions, broadest in the middle; 

 front armed with six spiniform teeth, the median ones larger, more 

 prominent, and separated by a deeper sinus than the others; exter- 

 nal angle of the orbit projecting as a sharp spine; sides convex, the 

 edge obtuse and rounded, with a single slender spine, or in the larger 

 specimens only a slight angular projection, at the anterior lobe of the 

 branchial region. Inner angle of the sub-orbital margin armed with 

 a slender sjjine which projects considerably beyond the spine of the 

 front above it. 



Chelipeds somewhat unequal, very large; meros long, its posterior 

 edge rounded, the anterior edge armed with- six to eight slender 

 spines, usually eight in the larger and six in the smaller cheliped ; 

 carpus smooth, evenly rounded on the outer side and with a single 

 short spine on the anterior part of the inner side; hands stout and 

 considerably swollen, especially the larger one, smooth and unarmed, 

 equaling or exceeding in length the breadth of the carapax, the fin- 

 gers not gaping, those of the larger hand rather stout and strongly 

 incurved, those of the smaller hand longer and more slender. Ambu- 

 latory feet slender and smooth except the dactyli which are slightly 

 pubescent. ■■) : 



Color of alcoholic specimens light yellowish, the fingers tinged with 

 orange and encircled with a median band of black. 



