OF CAPE BRETON AND NEWFOUNDLAND. 151 
similar to the Lingula flags of Great Britain. Species found in these measures have 
been described by Mr. Billings. At Great Bell Island, in Conception Bay, the following 
were found :— 
Eophyton Linnæanum, Torell. 
E. Jukesi, Bill. 
Arthraria antiquata, Bill. 
Lingula Murrayi, Bill. 
Lingullella (?) affinis, Bill. 
L. (?) spissa, Bill. 
Cruziana similis, Bill. 
From Kelly’s Island, near Great Bell Island, Mr. Whiteaves has described a pretty 
little Lingula under the name of Lingula Billingsiana. 
No deep-water species has been reported from this portion of the Cambrian system in 
Newfoundland. 
Descriptions of Species. 
I.—AGRAULOS, Hawle and Corda. 
Under Agraulos, Mr. Billings has described three species from the Paradoxides beds 
of Newfoundland ; two of these differ considerably from the type of the genus as described 
by Corda and Barrande, and one of the two is so unlike the type, that it should be 
separated, as a subgenus, if indeed it is not worthy of more distinct recognition; the 
aberrant form Mr. Billings has named A. strenuus. 
The two species which come nearer to the type of Agraulos are the following :— 
1.—AGRAULOS SOCIALIS, Billings. 
HÉROS, AEs 
ere erent 5 
1.4. 7 é. 

Fia. 1.—Agraulos socialis, Bill.—Narrow form.—Centre piece of the head shield and twelve 
segments of the thorax; the glabella is decorticated, and shows, on the mould, 
the furrows, which are only faintly marked on the outer surface of the test. 
Natural size. 1 a. Same seen in profile. 16. Same seen in front. 
The following is Mr. Billings’ description of this species :—‘ Head (without the 
moveable cheeks) semielliptical or conical, width at the base a little greater than the 
length, gently convex. Glabella conical and (including the triangular projection back- 
ward from the neck segment) about two-thirds the whole length of the head; neck 
furrows all across, but obscurely compressed ; neck segment with a triangular projection 
backwards, terminating in a short, sharp spine. Fixed cheeks gently convex; front 
margin, sometimes with a portion in front of the glabella thickened. Eyes of moderate 
