282 



CAMBEIAN BRACHIOPODA. 



3920 [U. S. National Museum]. Lower Cambrian: Arenaceous limestone collected somewhere in Vermont, exact 

 locality unknown (T. C. Wooster). 

 Rustella edsoni. 



392p [U. S. National Museum]. 

 Nisusia festinata. 



Lower Cambrian: Shale on the Jewell farm, Franklin County, Vt. 



395 (references follow species). (For stratigraphic position and association, see p. 143.) Upper Cambrian : Oholus 

 sandstone at Joa, near Jegelecht, 12 miles (19.3 km.) east of Reval, Government of Esthonia, Russia. 



Obolus apollinis [Mickwitz, 1896, p. 137]. 



Obolus apollinis ingricus [Mickwitz, 1896, p. 139]. 



*Obolus apollinis maximus [Mickwitz, 1896, p. 144, and 

 IT. S. National Museum]. 



*Obolus apollinis quenstedti [Mickwitz, 1896, p. 145]. 



*Obolus eichwaldi [Mickwitz, 1896, p. 155]. 



*Obolus elegans [Mickwitz, 1896, p. 158]. 



*Obolus panderi [Mickwitz, 1896, p. 151]. 



*Obolus schmidti [Mickwitz, 1896, p. 153]. 



*Obolu8 volborthi [Mickwitz, 1896, p. 157]. 



*Obolus (Schmidtia) acuminatus [Mickwitz, 1896, p. 183, 

 and U. S. National Museum]. 



*Obolus (Schmidtia) acuminatus alatus [Mickwitz, 1896, 

 p. 184]. 



*Obolus (Schmidtia) acuminatus humeratus [Mickwitz> 

 1896, p. 186]. 



Obolus (Schmidtia) acuminatus subtriangularis [Mick- 

 witz, 1896, p. 187]. 



Obolus (Schmidtia) celatus (U. S. National Museum). 



Obolus (Schmidtia) celatus prsecisus [Mickwitz, 1896, p. 



166]. 

 *Obolus (Schmidtia) crassus [Mickwitz, 1896, p. 192, and 



U. S. National Museum]. 

 Obolus (Schmidtia) crassus angulatus pviickwitz, 1896, t). 



194]. 

 *Obolus (Schmidtia) obtusus [Mickwitz, 1896, p. 171, and 



U. S. National Museum]. 

 Obolus (Schmidtia) obtusus acutus [Mickwitz, 1896, p. 178]. 

 Obolus (Schmidtia) obtusus ellipticus [Mickwitz, 1896, p. 



178]. 

 Obolus (Schmidtia) obtusus extenuatus [Mickwitz, 1896, 



p. 177]. 

 Obolus (Schmidtia) obtusus latus [Mickwitz, 1896, p. 175]. 

 Obolus (Schmidtia) obtusus longus [Mickwitz, 1896, p. 172], 

 Obolus (Schmidtia) obtusus minutus [Mickwitz, 1896, p. 



176]. 

 Lingulella (Leptembolon) lingulseformis (U. S. National 



Museum). 

 Keyserlingia buchi (U. S. National Museum). 



395a (references follow species). (For stratigraphic position and association, see p. 143.) Upper Cambrian : Obolus 

 sandstone at Tihala, near Jegelecht, about 12 miles (19.3 km.) east of Reval, Government of Esthonia, 

 Russia. 



Obolus (Schmidtia) acuminatus humeratus [Mickwitz, 



1896, p. 186]. 

 Obolus (Schmidtia) celatus preecisus [Mickwitz, 1896, p. 



Obolus apollinis ingricus [Mickwitz, 1896, p. 139]. 

 Obolus apollinis quenstedti [Mickwitz, 1896, p. 144]. 

 Obolus (Schmidtia) acuminatus [Mickwitz, 1896, p. 183] 

 Obolus (Schmidtia) acuminatus alatus [Mickwitz, 1896, p 

 184]. 



Obolus (Schmidtia) crassus [Mickwitz, 1896, p. 192]. 



395b (references follow species). (For stratigraphic position and association, see p. 143.) Upper Cambrian: Obolus 

 sandstone at Ilgast, Government of Esthonia, Russia. 



Obolus apollinis (U. S. National Museum), 



Obolus elegans (U. S. National Museum). 



Obolus (Schmidtia) acuminatus [Mickwitz, 1896, p. 183]. 



Obolus (Schmidtia) acuminatus alatus [Mickwitz, 1896, p. 

 184]. 



Obolus (Schmidtia) acuminatus humeratus [Mickwitz, 

 1896, p. 186]. 



Obolus (Schmidtia) acuminatus subtriangularis [Mick- 

 witz, 1896, p. 187]. 



Obolus (Schmidtia) celatus prsecisus [Mickwitz, 1896, p. 



166]. 

 Obolus (Schmidtia) crassus [Mickwitz, 1896, p. 192]. 

 Obolus (Schmidtia) crassus angulatus [Mickwitz, 1896, p. 



194]. 

 Obolus (Schmidtia) obtusus [Mickwitz, 1896, p. 171]. 

 Obolus (Schmidtia) obtusus ellipticus [Mickwitz, 1896, p. 



178]. 

 Keyserlingia buchi (U. S. National Museum). 



395c (references follow species). (For stratigraphic position and association, see p. 143.) Upper Cambrian : Obolus 

 sandstone at Asserien, 75 miles (121 km.) east of Reval, Government of Esthonia, Russia. 

 Obolus (Schmidtia) acuminatus [Mickwitz, 1896, p. 183]. | Obolus (Schmidtia) celatus prsecisus [Mickwitz, 1896, p. 

 Obolus (Schmidtia) acuminatus alatus [Mickwitz, 1896, p. 166]. 



184]. Obolus (Schmidtia) crassus [Mickwitz, 1896, p. 192]. 



*Obolus (Schmidtia) celatus [Volborth, 1869, p. 212]. | 



395d (references follow species). (Forstratigraphic position and association, see p. 143.) Upper Cambrian: Obolus 

 sandstone at Ontika, about 95 miles (153 km.) east of Reval and 30 miles (48 km.) west of Narwa, Govern- 

 ment of Esthonia, Russia. 



Obolus (Schmidtia) acuminatus [Mickwitz, 1896, p. 183], 

 Obolus (Schmidtia) acuminatus alatus [Mickwitz, 1896, p. 

 184]. 



Obolus (Schmidtia) celatus prsecisus [Mickwitz, 1896, p. 



166]. 

 Obolus (Schmidtia) crassus [Mickwitz, 1896, p. 192]. 



