PLATE XXX 
Fig. 1. Leurorthoceras hanseni Gen. et Sp. nov. A, ventral side; dorsal side; 
the lateral side is shown by Figure 1 on Plate 31, with the ventral side facing 
toward the right. Figure 8 on Plate 32 is a cross-section of this specimen, 
showing the flattening of the ventral side. Either from Boothia Felix or from 
King William Land; in dolomitic strata regarded as of Black River age. In the 
Palaeontologisk Museum, Kristiania; collected by Lieut. Godfred Hansen in 
1903-04. 
Fig. 2. Actinoceras sp. A, ventral side of phragmacone; B, an oblique lateral 
view, showing most of the ventral side, and exhibiting the transverse striae 
along the ventro-lateral angle of the conch. Figure 7 on Plate 32 presents the 
transverse outline of this specimen near its top, but the ventral outline of the 
siphuncle is not known definitely. Either from Boothia Felix or from King 
William Land ; in dolomitic strata regarded as of Black River age. In the Palaeon- 
tologisk Museum, Kristiania; collected by Lieut. Godfred Hansen, in 1903-04. 
