60 brachiopoda. 



8. Waldheimia Californica. B.M. 



Shell suborbicular, slightly tapering to the beak, gibbous, 

 smooth, brown ; margins obscurely sinuated in fi-ont ; beak re- 

 curved ; foramen minute, entire ; deltidium triangular ; loop 

 elongated, reflected. Lon. 25, lat. 23, alt. ? lines. 



Terebratula Califoraica (Koch), Kuster, Nov. Ed. Martini, viii. 

 pi. 2 b. f. 21-23. 



G. B. Sow. Thes. Conch, vii. 352. t. 70. f. 50, 51, 52. 

 Bav. Ann. Nat. Hist. May 1852, p. 364. 

 Hab. California. 



9. Waldheimia Patagonica. B.M. 



Shell oval, smooth ; valves nearly equally convex ; beak of 

 ventral valve produced, slightly curved, thick, laterally keeled, 

 truncated by a large foramen ; deltidium large and solid ; loop 

 elongated and reflected. Lon. 16, lat. 13, alt. 9 lines. 



Terebratula Patagonica, Sow. 1846, in Darwin's S. America, 

 p. 252. pi. 2. f. 26, 27. 

 D'Orb. Prod. iii. p. 134. 

 Fossil. Miocene. Patagonia. 



b. Beak laterally keeled ; valves convex, with corresponding ribs 



or j)romifiences. 



Terebratula^ cinctae, Buch. 



Quenstedt (part.), Handb. p. 465. 



10. Waldheimia aculeata. B.M. 



Shell pentagonal, v.ith four corresponding ridges to each valve ; 

 ridges very in-omineut, narrow, radiating from the umbones and 

 produced beyond the margins of the valves ; interspaces orna- 

 mented with vciy fine radiating striae; margins even, or slightly 

 arched in front ; beak truncated by a large round foramen ; del- 

 tidium usually incomjilete ; loop elongated, reflected ; septum 

 veiy short. Lon. 16, lat. 15, alt. 9 lines. 



Terebratula aculeata, Catullo, 1827, Zool. 119. t. 1. f. B. 



Zieten. Verst. Wiirt. 1830, p. 58. t. 43. f. 3. 

 Terebratula Ilceninghausii, Defr. 1828, Diet. Sc. Nat. liii. 152. 

 Terebratula tv'igcneWa, Bnch, Ter. 83. t. 1. f. 8 (not Schlotheim). 



Quenst. Handb. p. 465. t. 37. f. 29, 30. 

 Terebratula Fleuriausa, D'Orb. 1850, Prod. ii. p. 25. 

 Fossil. Coral Racj. Germany ; France. 



