THE GENERA OF THE PALEOZOIC BRACHIOPODA. 



Prepared by Mr. J. M. Claeke. 



[This list will serve to indicate the subject-matter proposed for die* 

 cussion in Palaeontology of N. Y., Vol. VIII, but it is not intended to 

 express acquiescence in the classification here provisionally adopted, 

 or to indicate the validity of the generic terms. All non-binomial terms 

 are omitted and also some of post-Linnean date too obscurely defined 

 to be recognized.] 



Order Inarticulata. 



Family Lingulidze. 



Genus. 



1. Lingula, Bruguiere, 1792. 



2. Dignomia, Hall, 1871. 



3. Glossina, Phillips, 1848. 



4. Lingulepis, Hall, 1863. 



9. Obolus, Eichwald, 1829. 



10. Obolella, Billings, 1861. 



11. Dicellomus, Hall, 1871. 



12. Leptobolus, Hall, 1872. 



13. Schmidtia, Volborth, 1869. 



14. Neobolus, Waagen, 1885. 



15. Mickwitzia, Schmidt, 1888. 



16. Monobolina, Salter, 1865. 



5. Lingulella, Salter, 1866. 



6. Barroisella, gen. nov. 



7. Lingulops, Hall, 1871. 



8. Lingulasma, Ulrich, 1889. 



Obolid^. 



17. Aulonotreta, Kutorga, 1848. 



18. Acritis, Volborth, 1869. 



19. Elkania, Ford, 1886. 



20. Spondylobolus, McCoy, 1852. 



21. Paterula, Barrande, 1879. 



22. Schizobolus, Ulrich, 1886. 



23. Discinolepis, Waagen, 1885. 



SlPHONOTRETIDiE. 



24. [?] Kutorgina, Billings, 1861. 



25. Schizopholis, Waagen, 1883. 



26. Volborthia, Moller, 1874. 



27. Iphidea, Billings, 1874. 

 27. Geinitzia, gen. nov. 



29. Acrotreta, Kutorga, 1848. 



30. Acrothele, Linnarsson, 1876. 



31. Linnarssonia, Walcott, 1885. 



32. Discinopsis, gen. nov. Matthew. 



33. Mesotreta, Kutorga. 1848. 



34. Siphonotreta, Verneuil, 1845. 



35. Schizambon, Walcott, 1884. 



36. Keyserlingia, Pander, 1861. 



37. Helmersenia, Pander, 1861. 



Discinid^:. 



38. (?)Discinisca, Dall,1871. 



39. Orbiculoidea, D'Orbigny, 1847. 



40. Schizotreta, Kutorga, 1848. 



41. Lindstromella, gen. nov. 



42. (Ehlertella gen. nov. 



43. Koemerella, gen. nov. 



44. Trematis, Sharpe, 1847. 



45. Orbicella, D'Orbigny, 1847. 



46. Schizocrania, Hall and Whit- 



field, 1875. 



