246 G. LINDSTRÖM, ON THE SILUKIAN GAÖTKOrOUA AND TTEKUrUDA OF GOTLAND. 



Plate XX. 



Fig. 1 — 6. Murchisonia deflexa n., p. 134. Fig. 3 tlie shell surface with the partially covered slit band. 

 » 7. Loxonema fasciatwn w., p. 144. 



» 8 — 15. Oriosloma contrarium n., p. 160. Fig. 8 — 9, from Hall, f. 10 frora Kj'rkberget in Wisby, 



f. 11 — 15 from Samsugn. 

 " 16. Oviostoma globosum Schloth. j). 160. 



» 17 — 21. >) angulifer n., p. 167. 



» 22—29. » Roemeri n., p. 168. 



» 30 — 33. » helicimmi u., p. 170. Fig. 30 — 31 with colour bands from Samsugn, f. 32 from the 



canal in Plall, f. 33 from the uppermost limestone of Halls huk. 

 » 34 — 41. Oriostoina angulatum Wahlenberg, p. 171, f. 34 — 37 from Färö, f. 38 — 41 from Samsugo 



in Othem. 

 » 42 — 44. Oriostoina lineatum n., p. 173. 



