98 SCOBPIONIU.E. 



the last subgranular in the middle, more coarsely granular at the 

 sides and furnished with a pair of short granular crests. Sterna 

 smooth and polished ; the last not crested. Tail less than three 

 and a half times as long as carapace, upper surface smooth, lateral 

 surface only weakly granular ; superior and inferior lateral crests 

 denticulate, inferior keels of 4th weakly denticulate, superior lateral 

 crest of 5th rectangular but only subdenticulate ; vesicle smooth or 

 almost smooth at the sides. Chelae with humerus weakly granular 

 in its basal half above ; the upper and anterior surface bounded by 

 strongly denticulate crests, the anterior surface with a few large 

 tubercles ; lower surface lightly reticulated mesially, with long 

 finely granular posterior crest ; brachium shorter than carapace, 

 armed in front at base with single long spine, posterior surface 

 smooth ; hand thick, strongly convex above, its inner edge not 

 so compressed as in the Indian species, the width less than length 

 of underhand, which is about three-fourths the length of the 

 movable finger; dorsal surface of hand smooth, punctured and 

 obsoletely reticulated, weakly carinate, the reticulation becoming 

 coarser toward the inner edge, which is itself somewhat thickly 

 and coarsely granular; immovable finger with smooth keel. 

 Penultimate fang of the movable finger of the mandibles longer 

 than in the foregoing species. Tarsal spine-armature 7 or 6 behind, 

 4 in front. Pectinal teeth about 14-16 ( c? , $ ). 



c? . Tail a little and chelae very much longer than in the female ; 

 tail not quite four times as long as carapace, which is shorter 

 than the 3rd and 4th caudal segments ; both humerus and 

 brachium much longer than carapace ; hand very long and slender, 

 nearly parallel-sided, the width half the length of the underhand, 

 which is longer than carapace and almost as long as the movable 

 finger. 



Measurements in mm. $. Total length 117, carapace 17, tail 

 56, humerus 13, brachium 14, underhand 13, movable finger 17, 

 width of hand 11'5. 



c? . Total length 103, carapace 16, tail 60, humerus 19, brachium 

 19, underhand 17, movable finger 19, width of hand 9. 



Loc. Occurring in abundance throughout Burma (Comotto, 

 Oates, Pea) ; Andaman Islands, Port Blair (Pratt). Borneo. 



85. Palamnaeus oatesii, nom. nov. : Palarnnaeus spinifer, Pocock, 

 A. M. N. H. (6) ix, p. 40, 1892 : [? spinifer, Hempr. 8? Ehrenb. 

 Symb.Phys.,Scorp.}).3, t. i,%. 2, 1829(Heterometrus)]: P. petersii, 

 Thorell, Atti Soc. It. xix, p. 214, 1877 (nee petersii, Thorell, 

 A. M. N. H. (4) xvii, p. 13, 1876) *. 



$ . Eesembling the preceding in colour but more polished, and 

 with the vesicle generally reddish yellow and much paler as a 



* The name petersii was originally applied by Thorell in 1876 to the 

 Cochin China form which Simon in 1872 had erroneously described and 

 figured as megacephalus, 0. Koch, and which he subsequently in 1882 renamed 

 Silenus. 



