108 ROYAL SOCIETY OF CANADA 
He summarizes this section as follows :— 

FEET 
1. Quartizite [at the top of which is the Olenellus fauna]...... 350 
2. Limestones and shales [at the top of which is the group of 
species corresponding to the Mt. Stephen Fauna]........ 1,450 
3. Massive limestones [in the upper part of which is the Dicel- 
locephalus (Euloma-Niobe fauna, fide Brégger) ]....:.... 3,000 
4,800 
By this section, the fauna corresponding to that of Mt. Stephen, 
is about 1,400 feet above the fauna of Olenellus in the same section. 
At a later date than the publication of this section, Mr. Walcott 
described several of the Brachiopods of the Mt. Stephen Fauna, the 
characters of which, as described by him, are here givent. 
‘ LINGULELLA MACCONNELLI, n. sp.” 
“Shell subspatulate, height and breadth as 7 to 44. Ventral 
valve subattenuate toward the apex; broadest midway, with the sides 
converging slightly toward the front,, and rather rapidly toward the 
apex; front broadly rounded. Dorsal valve short, height and breadth 
subequal; the broad front is squarely rounded. 
The specimens are somewhat flattened in the shale, but the rather 
strong shell preserves a moderate convexity. Surface marked by 
concentric striæ of growth and radiating longitudinal lines.” 
In the examples in my hands the concentric and radiating 
striæ above referred to are obscured by a minute granulation; and 
the radiations are much finer than the concentric lines. An example 
of the ventral and one of the dorsal valves, both small, were found 
in the Walker collection. 
“ CRANIA (?) COLUMBIANA, n. sp.” 
Is described by Mr. Walcott as follows:— “ Shell, small circular, 
or slightly longer than wide; apex, central or nearly so. Surface 
marked by fine coste, that radiate from the apex to the margin. ‘Traces 
of fine spines appear about the margin. Diameter, 2 mm.” 
The generic reference is made on account of the surface char- 
acters being more like those of shells referred to Crania than to those 
of other genera. Crania Grayi, Davidson ; Crania Lelia, Hall. 
(24th Rep. N.Y. State Cab. Nat. Hist., p. 220, pl. 7, flg. 16.).” 
1 Proc. U.S. Nat. Mus., June, 1889. 


