LOCALITIES. 181 



13c. (For stratigraphic position and association, see p. 147.) Middle Cambrian : Sandstones of the Rome formation, 

 west side of the sandstone ridge about 2.5 miles (4 km.) southwest of Rome [see Hayes, 1902, historical 

 geology sheet], Floyd County, Ga. (C. D. Walcott, 1891). 



Lingulella ino. 



13d (=13d'). (For stratigraphic position and association, see p. 134.) Middle Cambrian: Sandstones opposite the 

 third waterfall in Dugald Brook, between Divisions E2a and E2b of Matthew's [1903, p. 21] Btcheminian, 

 Dugald Brook, Indian River, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903). 



Lingulella (Lingulepis) longinervis. 



Acrothele avia. 



Bradoria robusta (Matthew). 



13d' (=13d). (For stratigraphic position and association, see p. 134.) (S. W. Loper, 1903.) 



Obolus (Palseobolus) bretonensis. 

 Lingulella atava. 

 Lingulella collicia. 



Acrothele avia. 

 Acrothyra sera. 

 Acrothyra signata. 



13d" (see 13p, 13g, 13f, and 13p'). (For stratigraphic position and association, see p. 134.) Middle Cambrian: 

 Sandstones 10 feet (3 m.) below Division E2a of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, 

 Indian River, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903). 



Lingulella (Lingulepis) longinervis. I Acrothele prima. 



Acrothele avia. ' | Acrothyra signata orta. 



Bassler cites the following from this locality: 

 Bradoria benepuncta (Matthew). I Bradoria robusta (Matthew). 



Bradoria perspicator (Matthew) (ss). | Bradoria rugulosa Matthew (emend.). 



13e (see 3441). (For stratigraphic position and association, see p. 134.) Middle Cambrian: Sandstones o" Divi- 

 sion E2c of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, Indian River, eastern Cape Breton, Nova 

 Scotia (S. W. Loper, 1903). 



Obolus (Palseobolus) bretonensis lens. 



Acrothyra proavia. 



Acrothyra sera. 



Matthew [1903, p. 25] gives the following fauna occurring in 2c: 

 AcrothjTa signata orta. 

 Bradorona observator Isevis Matthew. 



13f (see 13p, 13g, 13d", and 13p'). (For stratigraphic position and association, see p. 134.) Middle Cambrian: 

 Sandstones 20 feet (6 m.) above Division E2a of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, 

 Indian River, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903). 



Lingulella (Lingulepis) longinervis. 



Acrothyra sera. 



13g (see 13p, 13f, 13d", and ISp'). (For stratigraphic position and association, see p. 134.) Middle Cambrian: 

 Sandstones 10 feet (3 m.) above Division E2a of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, Indian 

 River, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903'). 

 Lingulella (Lingulepis) longinervis. 



Bassler cites the following species from this locality: 

 Hymenocaris? matthewi n. sp. 



131i. (For stratigraphic position and association, see p. 131.) Upper Cambrian: Shale on east bank of Barachois 

 River, 1.5 miles (2.4 km.) north of Boisdale, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903). 

 Obolus (Broggeria) salteri. I Schizambon priscus. 



Lingulella concinna. J Acrotreta bisecta. 



13i (little different horizon than 13r). (For stratigraphic position and association, see p. 132.) Middle Cambrian: 

 Sandstone of the " Johannian" Division of Matthew's section, on Gillis Brook, East Bay, east of Bras d'Or 

 Lake, eastern Cape Breton, Nova Scotia (S. W. Loper, 1903). 

 Lingulella tumida. 



13k (see 344f). (For stratigraphic position and association, see p. 135.) Middle Cambrian: Shales of Matthew's 

 [1903, p. 15] Coldbrook, above the great falls in Dugald Brook, Indian River, eastern Cape Breton, Nova 

 Scotia (S. W. Loper, 1903). 



Acrothyra sera. 

 *Acrothyra signata prima. 



Micromitra (Iphidella) pannula?. 



*Obolus? torrentis. 



Lingulella (Lingulepis?) pumila?. 



131 (==131'). (For stratigraphic position and association, see p. 133.) (S. W. Loper, 1903.) 

 Obolus (Palseobolus) bretonensis lens. I Acrothele avia. 



Lingulella (Lingulepi§) longinervis. I Acrothyra proavia. 



