REVISION OP SPECIES REFERRED TO GENUS BATHTURUS 
67 
ated halfway to the front. Facial sutures cut the posterior 
margin at the genal angles and the anterior margin in front of 
the eyes, Genal angles usually without spines. 
Thorax of nine segments; pleura deeply grooved, ending in 
long, acute spines. 
Pygidium with narrow axial lobe, which may have from 1 to 
8 rings. Pleural lobes smooth. The convex border which 
encircles the pygidium is set off by a shallow furrow. 
Type: Bathyurus Mtuberculatus, Billings. 
Lloydia bituberculatus, (Billings). 
Plate VII, fig. 15. 
Bathyurus bituberculatus, Billings, 1860. Canadian Naturalist 
and Geologist, Vol. V, p. 319, fig. 22. 
Fairly common in the conglomerates at Point L6vis, in 
pebbles of Beekmantown age. 
Lloydia saffordi, (Billings). 
Plate VII, fig. 16. 
Bathyurus saffordi, Billings, 1860. Canadian Naturalist and 
Geologist, Vol. V, p. 321, fig. 24. 
Differs from the preceding in lacking the basal lobes on the 
glabella, and in the more convex glabella and pygidium. The 
species is common in the Beekmantown at Philipsburg, and in 
pebbles at Point L6vis. Richardson found it at Cow head, 
Newfoundland. 
Lloydia solitaries, (Billings). 
Bathyurus solitarius , Billings, 1865. Palaeozoic Fossils of 
Canada, Vol. I, p. 362. 
Very similar to L. saffordi. The type is lost, and no other 
specimens are known. The locality was Hare bay, Newfound- 
land, and the specimen was found loose. 
