46 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



DESCRIBED SPECIES REFERRED TO WEEKSINA 



Weeksina unispina (Walcott) 



Asaphiscus ? unispinns Walcott, Smithsonian Misc. Coll., vol. 64, no. 5, p. 389, 

 pi. 61, fig. I, 1916. 



Upper Cambrian, Weeks ; (loc. 30n) Weeks Canyon, House Range, 

 Utah. 



H olotype.—lJ .S.N M. no. 62775. 



Weeksina granulata (Walcott) 



Asaphiscus ? granulattis Walcott, Smithsonian Misc. Coll., vol. 64, no. 5, p. 385, 

 pi. 61, figs. 2, 2a, 1916. 



Number of thoracic segments uncertain. 

 Occurrence same as preceding. 

 Cotypes. — U.S.N.M. nos. 62^^6-7. 



