262 CAMBKIAN BEACHIOPODA. 



332 [Kayser, 1883, p. 35]. Upper Cambrian: Limestone at Saimaki, Liaotung, China. 

 *Obolus? sp. undt. f. 



Lingulella daviai. 



332a [Kayser, 1883, p. 34]. Upper Cambrian: At Taling, Liaotung, China. 

 *Eoorthis linnarssoni. 



333 (references follow species). (For stratigraphic position and association, see p. 158.) Middle Cambrian: 



Shales on the dump of the Abe Lincoln mine, near Pioche, Lincoln County, Nev. 



Bathym-iscus howelli [Pack, 1906, p. 297]. 

 Bathym-iscus productus [Pack, 1906, p. 297]. 

 Zacanthoides typicalis [Pack, 1906, p. 299]. 



Micromitra pannula [Pack, 1906, p. 296]. 

 Obolus (Westonia) ella [Pack, 1906, p. 295]. 

 Lingulella genei [Pack, 1906, p. 295]=Lingulella dubia. 

 Eocystites longidactylus [Pack, 1906, p. 294]. 



333a (references follow species). (For stratigraphic position and association, see p. 158.) Middle Cambrian: 

 Shales on the dump of the Himon mine, near Pioche, Lincoln County, Nev, 

 Obolus (Westonia) ella [Pack, 1906, p. 295]. i Bathyuriscus productus [Pack, 1906, p. 297]. 



Bathyuriscus howelli [Pack, 1906, p. 297]. I Ptychoparia piochensis [Pack, 1906, p. 298]. 



333b (references follow species). (See 7k.) (For stratigraphic position and association, see p. 158.) Middle Cam- 

 brian: Shales on the dump of the Half-moon mine, near Pioche, Lincoln County, Nev. 



Ptychoparia kempi [Pack, 1906, p. 

 Zacanthoides typicalis [Pack, 1906, p. 299]. 

 Zacanthoides grabaui [Pack, 1906, p. 300]. 



Obolus (Westonia) ella [Pack, 1906, p. 295]. 

 Bathyuriscus howelli [Pack, 1906, p. 297]. 

 Ptychoparia piochensis [Pack, 1906, p. 298]. 



334 (references follow species). (For stratigraphic position and association, see p. 145.) Middle Cambrian: 

 Limestones of Paradoxidesforchhammeri zone on Bornholm Island, Denmark. 

 Acrotreta socialis [Wallerius, 1895, p. 66]=Acrotreta schmalenseei. 

 Acrotreta socialis [Linnarsson, 1876, p. 18]=Acrotreta schmalenseei. 



334a [Gronwall, 1902, p. 39]. (For stratigraphic position and association, see p. 146.) Middle Cambrian: Lime- 

 stones of the Conocoryphe exsulans zone at Borregaard, Bornholm Island, Denmark. 

 Acrothele intermedia. 



334b [Gronwall, 1902, p. 40]. (For stratigraphic position and association, see p. 145. Middle Cambrian : Andrarum 

 limestone at Borregaard, Bornholm Island, Denmark. 

 Acrothele coriacea. 



334c [Gronwall, 1902, p. 40]. (For stratigraphic position and association, see p. 146.) Middle Cambrian: In the 

 Paradoxides tessini zone at Borregaard, Bornholm Island, Denmark. 

 Acrothele coriacea. 



334d [Gronwall, 1902, p. 40]. (For stratigraphic position and association, see p. 146.) Middle Cambrian: In the 

 zone with Agnostus parvifrons at Borregaard, Bornholm Island, Denmark. 

 Acrothele coriacea. 



334e [Gronwall, 1902, p. 40]. (For stratigraphic position and association, see p. 145.) Middle Cambrian: Andrarum 

 limestone at LaesaA, Bornholm Island, Denmark. 

 Acrothele coriacea. 



334f [U. S. National Museum]. (For stratigraphic position and association, see p. 145.) Middle Cambrian: Lime- 

 stone on Bornholm Island, Denmark. 

 Acrothele coriacea. 



334g [Seebach, 1865, pp. 340 and 341]. (For stratigraphic position and association, see p. 145.) Middle Cambrian: 

 On Bornholm Island, Denmark. 



Agnostus bituberculatus. 

 Agnostus? punctuosus. 

 Anomocare difforme Angelin. 



*Acrotreta socialis. 



Paradoxides. 



Agnostus pisiformis Linnarsson. 



33411 [U. S. National Museum]. (See 16h.) (For stratigraphic position and association, see p. 145.) Middle Cam- 

 brian: Limestones of the Paradoxides forchhammeri zone at Borregaard, Bornholm Island, Denmark (University 

 of Copenhagen). 



Acrothele coriacea. 



Acrotreta sagittalis. 



335a. [U. S. National Museum]. (See 360b.) Passage beds between the Cambrian and the Ordovician: Red- 

 dish sandstone on Cement Creek, 3 miles (4.8 km.) north of Hot Springs and 8 to 10 miles (12.8 to 16.1 km.) 

 southeast of Crested Butte, Ouray County, Colo. 

 *Obolus loperi. 



