138 CRUSTACEA. 



denticulatis postico-lateralibus subito convergentilnis, et postici medio 

 breviter bi-spinuloso. Pedes 8 postici gracillimi, Iceves, nudi. Pedes 

 antici nudi, manu trigond, angulls incequaliter spinoso-denticulatis, 

 superficiebus Icevibus, brachio marginibus spinoso-denticulato. 



Carapax a little oblong, subdeltoid, posteriorly broadest, anteriorly 

 narrow and elongate, constricted behind the eyes, medial region 

 not tuberculate, cardiac with one spine, and in same transverse 

 line another remote spinule; beak not broader than long, deflexed, 

 obtuse at apex, an angle either side near middle ; lateral margins 

 of carapax rounded and 6-7-toothed, the anterior tooth much the 

 largest, postero-lateral margins rapidly convergent, and at middle 

 behind, two short spines. Eight posterior feet very slender, smooth, 

 naked. Anterior feet naked, hand elongate trigonal, angles un- 

 equally spinoso-denticulate, surfaces nearly or quite smooth, mar- 

 gins of arm spinoso-denticulate. 



Plate 6, fig. 6 a, animal, enlarged three diameters ; b, abdomen, en- 

 larged six diameters. 



Coral reefs of the island of Ovalau, Feejee Group. 



Length, three lines. 



The one spine of the cardiac region, and the one either side near 

 the margin, are the only ones of the upper surface, except that ante- 

 rior to the latter there is a range of minute obsolescent tubercles or 

 spinules; outside of this range the sides of the carapax fall off rather 

 rapidly. Either side of the two posterior spines of the carapax there 

 is another smaller spine, besides some others still smaller. The abdo- 

 men of male is shown in figure b. Two of the teeth on the outer 

 edge of the hands are more prominent than the others. The eight 

 posterior feet are quite long and very slender, and without tubercles 

 or spines. 



This species has many of the characters of the L. lamellifrom of 

 Adams and White (Voy. Samarang, p. 26, pi. 5, fig. 1). But in that 

 species, the posterior legs, as represented by these authors, are much 

 less slender and have small tubercles, and the form of the carapax is 

 different in important points, although having a general resemblance. 



