254 CAMBRIAN BRACHIOPODA. 



320u [LinnarBson, 18,76, p. 25]. (For stratigraphic position and association, see p. 145.) Middle Cambrian: Strata, 

 with Agnostus Ixvigatus at Ostra Rynninge, in Nerike, Sweden. 

 Micromitra pusilla. 



320v [Linnarsson, 1876, p. 23]. (See 320z.) (For stratigraphic position and association, see p. 145.) Middle Cam- 

 brian: In the Paradoxides forchhammeri zone at Lanna, Hjulsta, Vinala, and Vrana, all four in Nerike, 

 Sweden. 

 Acrothele coriacea. 



320w [Holm, 1898, p. 148]. (For stratigraphic position and association, see p. 144.) Passage beds between the Upper 

 Cambrian and the Ordovician : Ceratopyge limestone at Glote, in HerjeMalen, Province of Jemtland, Sweden. 

 Lingulella lepis. 



330x [Linnarsson, 1876, p. 16; U. S. National Museum]. (For stratigraphic position and association, seep. 146.)- 

 Lower Cambrian: In strata with Eolmia hjerulfi at Andrarum, 20 miles (32 km.) northwest of Simrishamn, 

 Province of Christianstad, Sweden. 



*Lingulella nathorsti. 



Holmia kjerulfi (Brogger). 



320y (references follow species). (For stratigraphic position and association, see p. 145.) Middle Cambrian: Lime- 

 stones of the Paradoxides forchhammeri zone at Gudhem, 12.5 miles (20.1 km.) south-southeast of Skara, 

 Province of Skaraborg, Sweden. 

 Micromitra (Iphidella) ornatella (U. S. National Museum). I Billingsella exporrecta [Linnarsson, 1876, p. 13]. 

 Acrothele coriacea (U. S. National Museum). | Billingsella lindstromi (U. S. National Museum). 



320z [Linnarsson, 1876, p. 13]. (See 320v.) (For stratigraphic position and association, see p. 145.) Middle Cam- 

 brian: Limestones of the Paradoxides forchhammeri zone at several places in Nerike, Sweden. . 

 Billingsella exporrecta. 



321 [Wiman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift bowlders 

 of Obolus sandstone, Nos. 1, 2, 4-6, 10-16, 18-20, 22-23, 25-29, on Fanton Island, parish of Borstil,. 

 Province of Stockholm, Sweden. 

 Obolus apollinis. 



321a [Wiman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift bowl- 

 ders of Obolus sandstone, Nos. 3 and 7, on Fanton Island, parish of Borstil, Province of Stockholm, 

 Sweden. 



Obolus apollinis. 



Problematicum. 



321b [W'iman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift- 

 bowlder of Obolus sandstone. No. 8, on Fanton Island, parish of Borstil, Province of Stockholm, Sweden. 

 Obolus apoUinis. 

 Hyolithes. 



321c [Wiman, 1902, p. 68]. (For stratigraphic position and association, seep. 145.) Upper Cambrian: Drift bowlder 

 of Obolus sandstone, No. 17, on Fanton Island, parish of Borstil, Province of Stockholm, Sweden. 

 Obolus apollinis. 

 Obolus (Schmidtia) obtusus?. 



321d [Wiman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift bowlder^ 

 of Obolus sandstone. No. 21, on Fanton Island, parish of Borstil, Province of Stockholm, Sweden. 

 Obolus apollinis. 

 Obolus (Schmidtia) celatus orbiculatus. 



321e [Wiman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift 

 bowlder of Ceratopyge slate. No. 1, on Biludden, about 20 miles (32.2 km.) east of Gefle, Province of 

 Gefleborg, Sweden. 



Acrotreta cf . sagittalis. 



Shumardia oelandica Moberg?. 



Conodont. 



321f [Wiman, 1902, p. 68]. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Drift bowlder 

 of Ceratopyge slate. No. 2, on Biludden, about 20 miles (32.2 km.) east of Gefle, Province of Gefleborg,. 

 Sweden. 

 Acrotreta cf . sagittalis. 

 Trilobite?. 



