Fies. 1,2. 
3, 4. 
Fies. 5,6. 
Fies: 7, 8,9: 
10, 11. 
12, 13. 
14, 15, 
Fics. 16, 17. 
. View of a fragment of a larger valve, showing the character of the narrow ribs. 
. Copy of Mr. Conrad’s figure, showing the entire form of a valve; Miocene Foss., Pl. 
EXPLANATION OF PLATE X. 
LucriNa TRISULCATA Conrad (p. 64). 
Opposite views of a left valve, enlarged; the outline shows the natural size. 
Similar views of a right valve enlarged. 
LUCINA ACCLINIS Courad (p. 62). 
Copies of Mr. Conrad’s figures, Miocene Foss., Pl. xvi, fig. 2, none of the New Jersey 
examples being perfect enough to figure. 
LUCINA CRENULATA Conrad (p. 63). 
View of shells with the umbonal sulcus near the cardinal margin. Enlarged. 
Views of a valve with a wider border. 
View of a shell with a longer anterior end. 
Cardinal views of the valves in conjunction. 
All figures enlarged three diameters. 
CarpiuM (CERASTODERMA) CRATICULOIDES Conrad (p. 66.) 
Opposite views of the most perfect valye obtained. 
XXXVUI, fig. 7. 
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