NO. 5 UPPER CAMBRIAN TRILOBITES RESSER 5I 



that the margin is turned under. At the rear the test is irregularly 

 striated. 



Sullivan formation; (loc. 64h) East Lyell Glacier, 48 miles north- 

 west of Lake Louise, Alberta. 



Holotytc— U.S.N. M. No. T08716. 



KINGSTONIA ARA (Walcott) 



Plate 8. Fi(;ure? 42-46 



Uccbia ara Walcott, Smithsonian Alisc. Coll., vol. 75, No. 2, p. 60, pi. 14, 



fig. 4, 1924; ibid., No. 3, p. 118, pi. 17, figs. 7, 8, 1925. 

 Kingstonia ara Resser, ibid., vol. 95, No. 4, p. 24, 1936. 



In addition to the holoty^je and paratype cranidia that are refigured, 

 another specimen from the type locality is added to show the changed 

 aspect resulting from exfoliation. It will be remembered that the 

 genus Ucebia was erected on this species, because the glabella was 

 well defined. However, as the illustrations show both exfoliated 

 specimens and one cranidium retaining part of the test, it is clear 

 that Ucebia is not a valid genus. When the shell is removed, any 

 species of Kingstonia becomes Ucebia. 



The locality erroneously stated in the original description, is given 

 correctly below. 



■Warrior limestone; (loc. 24f) i mile southeast of Warriors Mark, 

 Pennsylvania. 



Holotype. — U.S.N.M. No. 70257; paratype, No. 70258; plesiotype, 

 108720. 



KINGSTONIA KINDLEI, new species 



Plate 9, Figures 1-4 



This species is named for Dr. Cecil Kindle, who collected the 

 cranidium and several pygidia from the belt of Warrior limestone 

 exposed in the southwestern portion of the Bellefonte quadrangle. 



K. kindlei differs somewhat from K. ara (Walcott), which occurs 

 in the same limestone belt to the southwest in the Tyrone quadrangle. 

 It averages larger and is more convex than K. ara. Also the anterior 

 outHne is more circular. The holotype cranidium retains the test, and 

 consequently the dorsal furrow can be seen only when the specimen 

 is held so that strong cross light falls parallel to the slope of the 

 glabella and fixigene. A narrow striated rim is set in a nearly vertical 

 position. In cross section this cranidium is very high with a nearly 

 even curvature. When viewed from the side, the crandium appears 

 to be a quarter sphere. The associated pygidium has a nearly cylin- 



