PLATE 67. 
Page 
Fig. 1. Strophostylus obtusus. 805 
1 a. View showing the aperture with the obtuse spiie, which is barely visible above the second 
volution. 
1 b. View looking upon the spire. 
Fig. 2 a - e . Strophostylus pitchi. 800 
2 a. View of the aperture of a young shell. 
2 b View of the spire of the same, which preserves but two distinct volutions. 
2 c. View of the spire of a larger specimen. 
2 d. A large individual in which the apex of the spire is covered by stony matter. 
2 r. View of the aperture of the same. A careful removal of a portion of the stone from the 
aperture, since this figure was drawn, has shown the columellar margin, the spiral groove 
within, and the thickened ridge or callosity beyond. 
Fig. 3. Loxonema attenuata. 
8. A cast of the interior, preserving eight volutions. 
296 
Fig. 4. Euompiialus disjunctus. 340 
D 
4 a. The lower side of a cast of this species. 
4 b. Profile view of the same. 
4 c. Transverse section at the point ef fracture shown in fig. 4 a. 
