NOTES ON CAMBRIAN FAUNAS. 
47 ? 
strong traverse anastomosing ridges on the underside that char- 
acterize the species. 
Solenopleura Ribbii var. — A middle-piece of a 
small Solenopleura occurs. It agrees nearly with S. Robbii 
except that the glabella and cheeks are covered with distantly 
placed tubercles ; there are about twenty on the glabella and half 
that number on the fixed cheek behind the ocular fillet, and there 
are a few in front of the fillet. 
Conocoryphe Baileyi. — One head of this species, 
found. The surface is minutely granulate. The common species 
of Conocoryphe of this horizon is C. Walcotti . 
Worm and Gasteropod. 
Orthotheca Micmac — One example was found with 
the usual distinct longitudinal striae. 
Capulus sp. — A minnte capuloid shell, smooth, with 
faint striae of growth was found — it is on its side and flattened 
Haight 4 mm., width 31-2 mm. 
» 
No. 11 — Cambrian Fauna of Anse au Loup, Labrador. 
Some years ago Dr. J. F. Whiteaves sent to the writer a 
fragment of the fossiliferous limestone of the well-known locality, 
of Anse au Loup on the Canadian coast of Labrador, where 
many years ago (i860) Jas. Richardson collected the species 
of brachiopods, trilobites, tube worms, etc., which Mr. E. Billings 
described, and referred to the “Lower Potsdam” horizon. 
I11 these limestones which are 14 1 feet thick and rest upon 
sandstones 231 feet thick the following species were found: — 
Palseophycus incipiens . 
Ar chseos cyathus A tlanticus . 
A. profundus. 
O bolus Labradoricus. 
Obolella chromatica. 
O. ? cingulata. 
Olenellus Vennontana. 
Also an Orflxis and an Orthisina. 
Olenellus Thompsoni. 
Conocephalites miser. 
Bathynrus parvuhrs. 
B. senectus. 
Salt erella rugosa. 
S.- 
S.- 
pulchella. 
obtus'a. 
