BRACHIOPODA. 857 
Scaphiocelia, Whit- 
field. 1891. 
Shells of great 
size; plano-, or con- 
cavo-convex in zon- 
tour. Pedicle-valve 
with a conspicuous 
dorsum and broad, 
flat lateral slopes; 
brachial valve with 
an angular median 
sulcus. Surface 
strongly plicated. 
Interior unknown. 
Shell substance fib- 
rous impunctate (?). 
Type, Scaphiocalia 
Boliwiensis, Whit- 
field. 
Distribution. De- 
yonian. 
Fig. 472. 
Scaphioceelia Boliviensis, Whitfield. 
Fias. 472, 473. Two views of the 
same individual, showing the exter- 
nal characters of the _ species. 
(WHITFIELD, ) 
[?] Notothyris, Waagen. 
1882. 
Shells biconvex, 
coarsely plicate. Hinge- 
plate tripartite, per- 
forated as in CrntTRon- 
“eLta. Of the brachi- 
dium only the descend- 
aunt ing lamellz are known. 
108 109 
