T. E. Savage — New Species of Arthropods. 151 



versely subelliptical in outline, and is slightly more elevated 

 than the lateral lobes; its length is three-fourths of its width 

 and it comprises nearly one-half of the glabella. The first 

 lateral lobes are wedge-shaped in outline and about twice as 

 wide at the dorsal furrow as at their inner extremities. The 

 second lateral lobes are oblong in shape and smaller than the 

 first. The third lateral lobes are similar to the second, but 

 somewhat smaller. The outer extremities of the first lateral 

 furrows are nearly opposite the anterior ends of the eyes, from 

 which they extend obliquely backward and inward. The 

 second pair of lateral furrows are nearly transverse in direc- 

 tion, and are not continuous across the median portion of the 

 glabella. The third pair are similar in direction and extent to 

 the second. The occipital furrow is continuous across the 

 posterior margin of the glabella and meets the dorsal furrow 

 on either side, being deeper on the lateral extremities than 

 over the median portion. The occipital segment is slightly 

 longer and wider than the second and third lateral glabellar 

 lobes, and its anterior and posterior margins are nearly parallel. 



The cheeks are nearly triangular in outline, and have a 

 depressed marginal border which continues around the front 

 of the glabella. This marginal depression separates the ante- 

 rior portion of the glabella from the short shovel-shaped 

 median extension, on either side of which the margin is rather 

 deeply sinuate. The posterior limbs of the facial sutures 

 extend outward and slightly upward from the posterior 

 extremity of the eyes, cutting the lateral margins a little behind 

 a line through the center of the eyes. The eyes are large and 

 crescent-shaped, their length about one-half that of the gla- 

 bella. The height of the faceted portion is about one-third of 

 their length. The inner side of the eye lobes slope rather 

 steeply to the dorsal furrows. Between the eyes and the mar- 

 ginal furrows the surface of the cheeks is convex. The mar- 

 ginal border is rather broad and is widest toward the front 

 except at the sinuses on the sides of the anterior median exten- 

 sion, where it is narrowed to about one-half its usual width. 

 The posterior cheek furrows extend almost straight outward 

 from the posterior extremity of the eyes to the marginal furrows. 



The entire thoracic portion of the species was not seen. 



The pygidium is depressed convex, semi-elliptical in outline, 

 and has a width of 22 mm which about equals its length inclu- 

 sive of the flattened caudal spine. The latter measures about 

 flmm long, The axis is depressed convex and is sharply defined 

 by lateral furrows. At its anterior end the width of the axis 

 is slightly more than one-fourth of the greatest width of the 

 pygidium. It tapers gently posteriorly and terminates in a 

 bluntly rounded end a short distance within the flattened mar- 



