TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 447 



27299. Obolus mickwitzi Walcott. Cotypes. 



Middle Cambrian. Hudson, Wisconsin. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 386. 



27327. Obolus (Lingulella) mosia osceola Walcott. Cotypes. 



Upper Cambrian. Osceola Mills, Wisconsin. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 409. 



27304. Obolus namouna Walcott. Cotypes. 



Middle Cambrian. Eau Claire, Wisconsin. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 390. 



27328. Obolus (Lingulella) nanno Walcott. Cotypes. 



Middle Cambrian. Bluntsville Valley, Alabama. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 409. 



27329. Obolus (Lingulella) oweni Walcott. Cotypes. 



27330. Upper Cambrian. Gibraltar Bluff, near Lodi, Prairie du 



Sac, and Osceola Mills, Wisconsin. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 410. 



27301. Obolus pandemia Walcott. Cotypes. 



Middle Cambrian. Shooks Gap, Bays Mountain, ten miles 

 east of Knoxville, Tennessee. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 388. 



24592. Obolus pectenoides Whitfield. Cotypes. 



Upper Cambrian. Castle Creek, Black Hills, South Dakota. 



Whitfield, Ludlow's Rept. Reconn. Black Hills Dakota, 1875, 

 p. 103, figs. 1-3; Rept. Geol. and Resources Black Hills 

 Dakota, 1880, p. 338, pi. 2, figs. 18, 19. 



27331. Obolus (Lingulella) phaon Walcott. Cotypes. 



Middle Cambrian. Eau Claire, Wisconsin. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 410. 



27332. Obolus (Lingulella) pogonipensis Walcott. Cotypes. 



Base of Pogonip (Ord. ) . East of Hamburg Ridge, Eureka 

 District, Nevada. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 411. 



27333. Obolus (Lingulella) prindlei Walcott. Cotypes. 



27334. Lower Cambrian. One mile southwest of Wynantskill and 



five miles east of Albany, Rensselaer County, New 

 York. 

 Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 412. 



27335. Obolus ( Lingulella) punctatus Walcott. Cotypes. 



Middle Cambrian. Eureka District, Nevada. 



Walcott, Proc. U. S. Nat. Mus., XXI, 1898, p. 412. 



