446 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



27317. Obolus (Lingulella) fragilis Walcott. Cotypes. 



Middle Cambrian. Manuels Brook, Conception Bay, New- 

 foundland. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 404. 



27318. Obolusf Lingulella) franklinensis Walcott. Cotypes. 



Middle (?) Cambrian. Near Georgia, Vermont. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 404. 



27319. Obolus (Lingulella ) hayesi Walcott. Cotypes. 



Middle Cambrian. Coosa Valley, Cherokee County, Ala- 

 bama. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 405. 



27320. Obolus (Lingulella) helena Walcott. Cotypes. 



Middle Cambrian. Near Helena, Montana. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 406. 



27321. Obolus (Lingulella) ino Walcott. Cotypes. 



Middle Cambrian. Two and one-half miles south of 

 Rome, Georgia. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 406. 



27322. Obolus (Lingulella; lamborni minimus Walcott. 



Cotypes. 

 Upper Cambrian. Three and one-half miles south-south- 

 west of Rogersville, Tennessee. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1S98, p. 407. 



27307. Obolus (Lingulella) lens Matthew. Plesiotypes. 



27308. Upper Cambrian. Little and Great Belle Islands, Concep- 



tion Bay, Newfoundland. 



Walcott, Proc. U. S. Nat. Mus., XXIII, 1901, p. 6S5 (as O. (L.) 

 bellus); ibid., XXV, 1902, p. 606. 



27323. Obolus < Lingulella ) leos Walcott. Cotypes. 



Upper Cambrian. One and one-half miles south of Rome, 

 Georgia. 



Walcott, Proc. V. S. Nat. Mus., XXI, 189S, p. 407. 



27324 Obolus ( Lingulella ) lineolatus Walcott. Cotypes. 



to Middle Cambrian. Head of Chuar, Kwagunt, and Nunko- 



27326. weap canyons, Grand Canyon, Arizona. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 408. 



35257. Obolus Lingulella | linnarssoni Walcott. Holotype. 



Middle Cambrian. Lovened, Westrogothia, Sweden. 

 Walcott, Proc. U. S. Nat. Mus., XXIII, 1901, p. 688. 



27303. Obolus loperi Walcott. Cotypes. 



Transition Cambrian to Ordovician. Cement Creek, three 

 miles north of Hot Springs, Colorado. 



Walcott, Proc. U, S. Nat. Mus., XXI, 1898, p. 389. 



