brachiopoda. g'j 



41. Waldheimia Fischeuiana. B.M. 



S/ifll obloufr, trunrnteil and indt'iited in front, smooth ; edges 

 vcrv ol)tiisi'; ninrgins even ; ventrul valve pibliose ; beak short, 

 lecnrvcii, laterally keeled; foramen small, round; deltidium 

 solid, triangidar. Lon. 4 lines {D'Urb.). Lon. 11, lat. 8, alt. G 

 lines ( Hrit. Mus.). 



Terehratnla Fischcriana, D'Orb. 1845, Murch. Russia, ii.j). 482. 



|d. 4l'. f.27-.'^0 ; Prod. i. p. .'^Z?. 

 Terehratnla di^'ona, Zieten, liiirf. |).5;ii)l. liU. f . 8 {D'Orb). 



Fischer, Orijct. Moscow, pi. 2.'^. f. 7 (not Sow.). 

 Terehratnla indentata, Fischer, Bull. Moscow, xvi. ]>. 24. pi. 4. 



f. ."i 1 (not .Soir.). 

 Terehratnla nneleata, Fischer, id. p. 25. pi. 4. f. 5, G (not Zieten). 



Fossil. Oxford Clay. Rnssia. 

 Coral Rag. Germany. 



42. Waldheimia lunaris. 



Shell crescent-shaped, smooth ; valves gibhose, concave in 

 front ; margins even ; beak very small, depressed, keeled ; fo- 

 ramen minute. Lon. 5^, lat. 7, alt. 4 luies. 



Terehratnla lunaris [Schubler), Zieten, p. 59. pi. 44. f. 4. 



D'Orb. Prod. i. p. 288. 

 Fossil. Inferior Oolite. Germany. 



43. Waldheimia plana. B.M. 



Shell small, pentagonal, smooth ; front truncated ; margins 

 even; dorsal valve rather flat, slightly depressed centrally in 

 front, with indications of a long central septum ; ventral valve 

 convex, flattened in the centre, with two obscure ridges ; beak 

 recur\cd, laterally keeled ; foramen small round ; deltidium in- 

 complete. Lon. 5, lat. 5, alt. '6 hncs. 



Terehratnla j)lana, Munster in Cambridge Museum. 



Terehratnla pentahedra, id. 



Terehratnla pentahedra, minor, (Munster) Dr. Braun in British 



Museum. 

 Terebratula nana, id. 

 Fossil. Oxfordian — Coral Rag. Bavaria. 



44. Waldheimia Marine. 



Like T. cornuta, but shorter, tnmcated, and straight in front. 

 Terebratula Marifc, D'Orb. 1847, Prod. i. p. 240, 

 Fossil. Lias. France. 



