78 brachiofoda. 



78. Waldheimia? inelegans. 



Shell orbicular, ventricose, smooth ; margins even ; valves 

 equally convex ; edges obtuse ; ventral valve with an obscure 

 longitudinal furrow; beak small, recm-ved. Lon. and lat. 7, 

 alt. 4i lines. 



Terebratula inelegans, Barrande, 1847, in Haidinger's Abhandl. 



p. 408. t. 17. f. 1. 

 Atrypa inelegans, D'Orb. Prod. i. p. 38. 



Fossil. U. Silurian. Bohemia. 



79. Waldheimia? ephemera. 



Shell orbicular, smooth, slightly indented in front ; margins 

 even; valves equally convex, slightly sinuated in front; beak 

 small, recui-v^ed. Lon. and lat. 5, alt. 3^ Unes. 



Terebratula ephemera, Barrande, 1847, in Haidinger's Abhandl. 



p. 408. t. 16. f. 11. 

 Atrj-pa? ephemera, D'Orb. Prod. i. p. 38. 



Fossil. U. Silurian. Bohemia. 



80. Waldheimia? Hecate. 



Shell orbicular, slightly pentagonal, smooth ; valves convex, 

 margins sinuous, slightly arched in front; beak small, promi- 

 nent, recurved. Lon. 9, lat. 10, alt. 6 hues. 



Terebratula Hecate, Barrande, 1847, in Haidinger's Abhandl. 



p. 409. t. 16. f. 12. 

 Spirigera Hecate, D'Orb. Prod. i. p. 43. 

 Fossil. U. Silurian. Bohemia. 



81. Waldheimia? securis. 



Shell trigonal, smooth, umbones convex ; margins even ; edges 

 sharp ; front very wide, and like the sides nearly straight ; beak 

 very small. Lon. 9, lat. 10, alt. 4^ lines. 



Terebratula secmis, Barrande, 1847, in Haidinger's Abhandl. 



p. 388. t. 16. f. 1. 

 Atrj'pa securis, D'Orb. Prod. i. p. 39. 

 Fossil. U. Silurian. Bohemia. 



82. Waldheimia? obolina. 



Shell transversely oblong, smooth ; valves equally convex ; 

 margins even ; edges sharp ; beak minute. Lon. 7, lat. 8, alt. 

 4 lines. 



