LOCALITIES. 161 



C1-C75 (pp. 286-291) were assigned to the faunules collected by the expedition to China of the 

 Carnegie Institution of Washington. Numbers 300-396z (pp. 229-286) have been arbitrarily 

 assigned to localities mentioned in the literature or unnumbered localities in the United States 

 National Museum collections, and the included species may not occur together as do those of 

 the former localities. For each of the species listed in localities 300-396z it is simply true that 

 the description of the locality under which it is placed gives all available information as to its 

 stratigraphic and geographic position and the authority for so listing it. 

 Localities 1-227, U. S. National Museum. 



1 (about 50 feet above la). (For stratigraphic position and association, see p. 140.) Middle Cambrian: Shales of 

 zone A of No. 7 of the Manuels Brook section [Walcott, 1891b, p. 261], Manuels Brook, a small stream which 

 flows into Conception Bay from the east, near Topsail Head, Newfoundland (C. D. Walcott, 1888). 



*Obolus fragiiis. 

 Lingulella ferruginea. 

 Lingulella ferruginea?. 

 Acrothele matthewi. 

 Acrotreta misera. 



Conocoryphe matthewi (Hartt). 

 Paradoxides hicksi Salter. 

 Paradoxides sp. 

 Anopolenus venustus Billings. 

 Erinnvs venulosa Salter. 



Walcoft [1891b, p. 261] cites the following additional species: 



Hyolithes sp. a. 



Agnostus 3 sp. 



Microdiscus punctatue Salter. 



Conocoryphe elegans (Hartt). 

 Agraulos socialis Billings. 

 Liostracus tener (Hartt). 



la (^6n and 6 1, about 50 feet below 1). (For stratigraphic position and association, see p. 140.) Middle Cambrian: 

 Shalesnear the top of No. 6 of the Manuels Brook section [Walcott, 1891b, p. 261], Manuels Brook, Concep- 

 tion Bay, Newfoundland (C. D. Walcott, 1888). 



Obolus fragiiis. 

 Lingulella ferruginea. 

 Acrothele matthewi. 

 Agraulos socialis (Billings). 



Liostracus tener (Hartt). 

 Conocoryphe elegans (Hartt). 

 Paradoxides davidis Salter. 

 Paradoxides sp. 



11 (same horizon as Iv). (For stratigraphic position and association, see p. 138.) Lower Cambrian: Shales of 

 No. 3 of the Silver Peak group, Barrel Spring section [Walcott, 1908f, p. 189°], 2.5 miles (4 km.) south of 

 Barrel Spring and 0.5 mile (0,8 km.) east of road, in the extreme southeastern corner of the Silver Peak 

 quadrangle (U. S. G. S.), Esmeralda County, Nev. (F. B. Weeks, 1899). 



Acrothele spurri?. I Ptychoparia sp. 



Acrotreta claytoni. | Olenellus gilberti Meek. 



Im (^Ip). (For stratigraphic position and association, see p. 1'68.) Lower Cambrian: Limestones of No. 2 of the 

 Silver Peak group, Barrel Spring section [Walcott, 1908f, p. 189], about 2.5 miles (4 km.) south of Barrel 

 Spring and 0.5 mile (0.8 km.) east of the road, in the extreme southeastern comer of the Silver Peak quad- 

 rangle (U. S. G. S.), Esmeralda County, Nev. (F. B. Weeks, 1899). 



Micromitra (Paterina) prospectensis. I Olenellus gilberti Meek. 



Nisusia (Jamesella) argenta. | 



Ip (=lm, which see). (For stratigraphic position and association, see p. 138.) (F. B. Weeks, 1899.) 

 Micromitra (Paterina) prospectensis. I Olenellus fremonti Walcott. 



* Nisusia (Jamesella) argenta. | Olenellus gilberti Meek. 



Iv (same horizon as 11). (For stratigraphic position and association, seep. 138.) Lower Cambrian: Shales of 

 No. 3 of the Silver Peak group. Barrel Spring section [Walcott, 1908f, p. 189a], 3 miles (4.8 km.) north of 

 Valcalda Spring and 4 miles (6.4 km.) west-northwest of the Drinkwater mine, Silver Peak quadrangle 

 (U. S. G. S.), Esmeralda County, Nev. (F. B. Weeks, 1899). 



Swan tenia sp. 



Stenotheca cf. elongata Walcott. 



Stenotheca cf. rugosa (Hall). 



Ptychoparia sp. 



Wanneria gracile Walcott. 



Olenellus argentus Walcott. 



Archseocyathus. 



*Micromitra (Paterina) labradorica var. 



Kutorgina cingulata. 



*Kutorgina perugata. 



*Siphonotreta? dubia. 



*Swantonia weeksi. 



2. (For stratigraphic position and association, see p. 140.) Middle Cambrian: Shales of zone B of No. 7 of the 

 Manuels Brook section [Walcott, 1891b, p. 261], Manuels Brook, Conception Bay, Newfoundland (C. D. 

 Walcott, 1888). 



Obolus fragiiis. I Acrothele matthewi. 



Lingulella ferruginea. | 



a The species mentioned by Walcott [1908f, p. 189] occur at slightly difEerent localities (11 and Iv), none of the species being common to 

 both localities. 



62667°— VOL 51, pt 1—12 11 



