lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 95 



distortion, the species still has a glabella that expands somewhat more 

 than the extreme in other species, but it does not seem to be enough 

 more to warrant the establishment of a new genus. 



Lower Cambrian, Schodack ; 2 miles south of North Granville, New 

 York. 



Holotype. — U.S.N.M. no. 17454a. 



Bonnia salemensis, n. sp. 



Corynwxochus clavahis Walcott (part), Smithsonian Misc. Coll., vol. 64, 

 no. 5, p. 316, pi. 55, fig. 4b, 1916 (see B. clavata). 



This form has strong glabellar furrows, exceeding in this respect 

 as well as in length of glabella the similar features in B. scnccla. 



Lower Cambrian, Schodack ; (loc. 43a) i mile northeast of Salem, 

 New York. 



Holotype. — U.S.N.M. no. 17454b. 



Bonnia bubaris (Walcott) 



CoryncxocJnis bubaris Walcott (part), Smithsonian Misc. Coll., vol. 64, no. 5, 

 p. 314, pi. 56, fig. 2, 1916. (Not fig. 2a =: B. bicensis; 2b ^ B. qucbcccnsis; 

 figs. 3, 3a = B. zvanncri; figs. 3b-3f = B. tumifrons.) 



Lower Cambrian; (loc. 20) boulders, Bic, Quebec. 

 Holotype. — U.S.N.M. no. 62734. 



Bonnia bicensis, n. sp. 



Corynexochiis bubaris Walcott (part), Smithsonian Misc. Coll., vol. 64, no. 5, 

 p. 314, pi. 56, fig. 2a (only), 1916 (see B. bubaris). 



This species differs from B. bubaris in its greater and more even 

 convexity, longitudinally. 



Occurrence same as preceding. 

 Holotype. — U.S.N.M. no. 62735. 



Bonnia quebecensis, n. sp. 



Corynexochiis bitbaris Walcott (part), Smithsonian Misc. Coll., vol. 64, no. 5, 

 p. 314, pi. 56, fig. 2b (only), 1916 (see B. bubaris). 



Coarse lined surface ornamentation distinguishes this form from 

 B. bubaris. 



Occurrence same as preceding. 

 Holotype.— U.S. '^.M. no. 62736. 



Bonnia wanneri, n. sp. 



Coryncxochus bubaris Walcott (part), Smithsonian Misc. Coll. vol. 64, 

 no. 5, p. 314, pi. 56, figs. 3, 3a, 1916 (see B. bubaris). 



Compared with B. bubaris, this species is not only larger but lacks 

 glabellar furrows and in side view is seen to be arched only in its 

 anterior third. 



