16 



at an angle of nearly 90° downwards, and then par- 

 allel with each other, in a vertical direction they cut the 

 marginal edge ; the lines at this point converge and com- 

 bine into a rostral suture. ( Nieszk.) The cheeks 

 are separated in front by the vertical suture. Thorax 

 with 11 equal segments, without pleural grooves, notch- 

 ed at the ends, but not produced into spines. Pygidium 

 with the ends of the pleurte free ; axis with many rings. 

 The axis is perfectly ringed in Cryptonymus muUiseg- 

 menfatus ; notched on both sides in Orypt. variolaris. 

 The type for this sub-genus is Crypt, punctatus. Dal. 



Sub-genus II. Cybele, Loven, 1845. 



Cephalic shield serailuna, with broad and rounded 

 posterior angles ; glabella with three furrows, the ante- 

 rior lobe clavate. The posterior branches of the facial 

 line commence some distance above the posterior 

 angles of the head, and run obliquely to the cone shaped 

 eyes, which are well advanced on the cheeks, nearly 

 opposite the third glabella furrow. Anterior branches 

 of the facial line run from the eyes, and then con- 

 verging to the front of the glabella, to the outer mai'gin, 

 they are then combined into a short rostral suture. 

 Cheeks convex, deflected before the eyes and covered 

 with large tubercles. The thorax consists of 12 segments, 

 6th to 12th run parallel with the five anterior segments 

 to the fulcrum point; at this place they bend posteriorly 

 at an angle of 90°, and terminate in long pointed spines, 

 particularly the 6th segment, according to Angelin's 

 figures represented on pi. iv, fig. 1. The five anterior 

 thorax segments are altogether of a different character 

 the pleurae being facetted at their extremities. 



