SUPPLEMENT.— HYPERLIOCERAS. cxxiii 



width of umbilicus 1 4 mm. But his figure shows along- i ^ £v», w>, 



the diameter-line of 124 mm. an umbilicus only 10 mm. kf ~y-3 f '{& °\ ' f 



across. Where the umbilicus is 14 mm. across the speci- V£ 



men, had it not been broken, would have been about Fig. 89.— Suture line of 



-, r A • -i. . Hyperlioceras Desori 



150 mm. m diameter. ( from my specimen). 



h. Parallela. 



The whorl-section with somewhat parallel sides separates this series from the 

 last, 



1. Pinguia. 

 The whorls are somewhat stout, 



3. Hyperlioceras Ltjcyi, 8. Buckman. Plate XXI, figs. 3, 4; Suppl., Figs. 91, 



92, p. clxv. 



1889. Ludwigia Lucyi, This Monogr., PL xxi, figs. 3, 4 only. 

 Remarks. — The costse are coarse and distant, 



but not prominent. Thej join by twos a little 

 distance from inner margin to form subobscure 

 lumps. The radial line with long peripheral 



projection indicates the generic position. Fig.9L— Suture line of Hyperlioceras Lucyi. 



wy^ f i 



4. Hyperlioceras subleve, S. Buckman. Plate XVII, fig. 5 ; Plate XVIII, fig. 3 ; 



Suppl., Fig. 93, p. clxv. 



1889. Hyperlioceras discites, This Monogr., PL xvii, fig. 5 ; PL xviii, fig. 3 only. 

 1902. subleve, Emend. Amm. Nom., p. 4. 



Description. — Concavumbilicate ; levigate. 



Distinction. — From Am. discites, stouter whorls, larger umbilicus, and the 

 absence of costse. 



2. Compressa. 

 The whorls are thinner than in the preceding series. 



