MM 



Fig. i. — i, Scaphites nodosus var. plains; natural size. 2, 5. nodosus var. brevis; 

 natural size. 3, 5. nodosus var. quadrangularis; natural size. 4, 5. nodosus var. 6m/J5 

 (\oung); natural size. 5, 5. nodosus var. &rei;« (Young); natural size. 6, 5. nodosus 

 var. Zwz/« (Young); natural size. 7, S. nodosus var. &ra/M (Young); natural size. 

 8, S. mitUanamtis. 9-1 1, S. nodosus var. &*•<??/« (protoconch) ; X30. 12, 5. nodosus 

 var. &rww; D= 1.14mm. I3j 5. nodosus var. ftrevw; inside of first whorl at D of 

 66mm ; X30. 14, 5. nodosus var. brevis; 2f whorls, D of shell = 2.26mm; X io. 

 15, 5. nodosus var. brevis; 2% whorls, 1.76mm; 20 d. 16, S. nodosus var.' brevis; 

 internal suture of the above. 17, S. nodosus var. brevis; 5 m m ; Xg. 18, S. nodosus 

 var. brevis; 3! whorls; X4. 



