PLATE XCVIII. 329 
ORUSIA LENTICULARIS ATRYPOIDES (Matthew) (p. 769). 
Figure 5. Ventral valve from Locality 308b, Upper Cambrian limestone in shales of Division C3a of Matthew, Ger- 
maine Street, St. John, New Brunswick. University of Toronto, Canada. Type specimen figured 
by Matthew [1892, Pl. XII, fig. 11a]. 
ORUSIA LENTICULARIS (Wahlenberg) (p. 765). 
[Pl. XCVIII, figs. 1, la-p; 2, 2a-k; and 3, 3a-b.] 
Ficures 6, 6a-c. Ventral, dorsal, side, and posterior views of a specimen from Locality 3, Upper Cambrian limestones 
300 feet above the Paradoxides zone on Manuels Brook, Conception Bay, Newfoundland. U.S. 
Nat. Mus. Cat. No. 52402). 
