EXPLANATION OF PLATE XIV. 



Tellina producta Conrad (p. 78). 



Figs. 1, 2. Opposite views of an imperfect valve, twice enlarged. 



3. Enlargement of the hinge. 



Tellina (Angulus) dfclivis Conrad (p. 77). 



Figs. 4,5, 6. Outline, natural size, and enlarged views of the opposite sides of an imperfect valve. 



Tellina peracuta Conrad (p. 76). 



Fig. 7. View, natural size, of the only specimen seen. 



Tellina capillifera Conrad (p. 76). 



Figs. 8, 9. Opposite views of a valve which is imperfect on the edge. 



10. Enlargement of the hinge. 



Abra .equalis Conrad (p. 80). 



Figs. 11, 12, 13. Exterior of a valve, natural size, and the exterior and interior views enlarged twice. 



14. Interior of the opposite, valve twice enlarged. 



15. Cardinal view, twice enlarged. 



Amphidesma Burnsi Whitf. (p. 79). 



Figs. 16, 17. Exterior and interior views of an imperfect valve of this species, twice enlarged. 

 18. Further enlargement of the hinge. 



Donax variabilis Say (p. 79). 



Figs. 19, 20. Two views of right valve. 



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