22 



44. Ptychophyllum truncatuin L... d — f 



45. patellatura Sclilotheim c — h 



46. stellare L d— f 



47. Arachiiophyllum typus Mac Coy. a 



48. difflueiis E. H .* - C 



49. Acervularia luxurians Eichw. ? C — f 



50. truncata Wahlenb. noii L... C — f 



51. ananas L... C — f 



52. Diphyphyllum nigosura E. H. f 



53. Palaeocyclus porpita L. be 



54. Polyorophe glabra Lm cd 



55. Syring-ophyllum organum L a 



56. Pholidophyllum tubulatnm Schloth. b — h 



57. Chonophylliim perfoliatiim E, H f 



58. Ompliyma tiirbinata L 



59. sub-tnrbinata d'Orb C 



60. Mnrchisoni Edw. H. C 



61. Goniophyllum pyraraidale His a — d 



62. Rhizophyllum gotlandicnra F. Roemer. C — f 



63. elongatum Lm. f 



64. Araeoporaa prismaticum Lm. b— d 



65. llhytidophyllum pnsillum Lm. f 



66. Cystiphyllum cylindricum Lonsd c — h 



67. siluriense Lonsd . — C — f 



68. x\.ctinocystis Grayi E. PL c — f 



Grraptolithae. 



G. LiNXAKSSOx. Om Gotlands Graptolither. Ofvers. af Vet. Akad:s Forhandl. 

 1879. 



1. Monograptus priodon Bronn -- cd 



2. coloniis Ban*. c 



3. subconicus Tornquist be 



4. Eetiolites Geinitzianus Ban*. e 



5 — 6. Dictyonema sp. nov. e 



7. Inocaulis (bellfe Hall A Whitf. aftinis). 6 



8. Arthroclema ? sp - — -- e 



Strom atoporidse. 



NiCHOLSox. A Monograph of the British Stromatoporidae, Pal?eont.-Soc. 1886. 



1. Rosenella macrocystis Nichols. 



2. Stromatopora discoidea Lonsd. - h 



3. Actinostroma ? astroites Rosen. 



4. Clathrodictyon Linnarssoni Nich. 



5. striatellum D'Orb. p. p. 



6. regulare Rosen. 



