two neio Genera of Scor/)ions. 45 



Sternites entirely smootli, very finely and elosely punc- 

 tured, the sulci uniting in iVont and resembling the imprint 

 ot" a horseshoe ; the last rugose, bearing vestiges of four finely 

 granular, ])osteriorly converging keels. 



Tail about three and a quarter times the length of the 

 cephalothorax, narrowed posteriorly, the segments longer 

 than they are thick, distinctly sulcate above, the sides of the 

 upper surface rounded and very finely granular and not 

 keeled, the lower surface distinctly carinate, tlie keels being 

 normal in number, finely granular, and marked by setiferous 

 pores ; the fifth segment nearly fiat above, the posterior third 

 of its lower surface without keels ; the vesicle large, pyri- 

 form, entirely smooth, aculeus short and abruptly curved. 



Paljji robust ; hmnerus coarsely granular above, mostly 

 smooth behind and below, strongly granular in front ; hra- 

 chium rugose and subgranular above and behind, and sub- 

 costate behind, smooth in front and below except for the keel 

 which separates the anterior and inferior surfaces : manus 

 very stout, rugose, and reticulated and convex above, the 

 pattern passing into tubercles internally and externally ; the 

 superior moiety of the hand- back forming a large obtuse angle 

 with the upper surface, beset with small tubercles, defined 

 above by a weak keel which anteriorly breaks up into the 

 general pattern of the upper surface, the inferior moiety 

 entirely smooth and polished, the antero-inferior surface 

 granular ; very wide, the length of the back being much less 

 than the greatest width and only about equal to the width 

 at the base of the daetyli ; the height equal to about three 

 fourths the length of the hand-back ; the movable dactylus 

 considerably longer than the hand-back and a little longer 

 than the width of the hand, rugose, carinate, with a lobe 

 which fits into a shallow excavation on the internal edge of 

 the immovable dactylus, the external edge of this dactylus 

 very short, about equal to half the length of the movable 

 dactylus. 



Legs very finely granular externally, the lower edge of the 

 femora of the first three pairs more granular. 



Pectines short, furnished with six to seven teeth j the 

 genital operculum cleft, about twice as wide as long. 



Measurements in millimetres. — Total length 75 ; cephalo- 

 thorax, length 11, width 11'5; length of tail 35, of first 

 segment 4*5, of second 5, of third 5*2, of fourth 6, of fifth 

 7*5, of vesicle and aculeus 7*3, of aculeus 2 ; width of first 4, 

 of fifth 2'6 ; humerus, length 7, width 4, height 4 ; brachium, 

 length 8, width 4'5, height 5; manus, length behind 8, 



