182 



CAMBKIAN BRACHIOPODA. 



Acrothele abavia. 

 Acrothyra proavia (p. 57). 

 *Acrothyra proavia prima. 



131' (=131; see 344i). (For stratigraphic position and association, see p. 133.) Middle Cambrian: In the shaly 

 sandstones of Division E3a of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, Indian River, eastern 

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



Obolus (Palteobolus) bretonensis. I Acrothele avia. 



Lingulella atava. | Acrothele proles. 



Matthew [1903] cites the following from this locality: 

 Obolus lens (pp. 58, 80). 

 Obolus (Palasobolus) bretoneusis (p. 26). 

 Lingula sp. 

 Leptobolus sp. 



Bassler cites the following from this locality: 

 Bradoria acuta (Matthew). 

 Bradoria curta Bassler. 



13m. (For stratigraphic position and association, see p. 133.) Middle Cambrian: Sandstones of Division E3f of 

 Matthew's [1903, p. 76] Etcheminian, on Gillis Brook, Indian River, eastern Cape Breton, Nova Scotia 

 (S. W. Loper, 1903). 



Obolus (Palseobolus) bretonensis lens. I Acrothele avia. 



Lingulella coUicia. I *Acrothele proles. 



Matthew [1903] cites the following: 

 Leptobolus collicia=Lingulella collicia. 

 Leptobolus collicia collis= Lingulella collicia. 

 Acrothele avia puteis. 

 Acrothele proles. 



Bassler cites the following from locality No. 13m": 

 Bradoria acuta (Matthew). 

 Bradoria vigilans Matthew. 

 Beyrichona rutellum (Matthew). 



13n (see 344d). (For stratigraphic position and association, see p. 133.) Middle Cambrian: Sandstones of Divi- 

 sion E3f of Matthew's [1903, p. 21] Etcheminian, on Dugald Brook, Indian River, eastern Cape Breton, 

 Nova Scotia (S. W. Loper, 1903). 



Lingulella atava. 



Acrothele avia. 



Acrothele proles. 



Matthew [1903, p. 37] cites the following: 

 'Leptobolus atavus=Lingulella atava. 

 Leptobolus collicia=Lingulella collicia. 

 Leptobolus collicia collis= Lingulella collicia. 

 Acrothele proles. 

 Acrothyra crassa?=Acrothyra proavia. 



Bassler cites the following: 

 Bradoria scrutator (Matthew). 

 Indiana lippa (Matthew). 

 Walcottella fusiformis (Matthew). 



Acrothyra proavia crassa=Acrothyra proavia. 

 Acrothyra proavia prima=Acrothyra proavia. 

 Leperditia?? rugosa. 

 Bradoria scrutator. 



Acrothyra proavia prima?=Acrothyra 

 Bradorona perspicator major. 

 Bradorona scrutator. 

 Solenopleura (?) bretonensis (part). 



13n'. (For stratigraphic position and association, see p. 133.) Middle Cambrian: Sandstones of Division E3e of 

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

 (S. W. Loper, 1903). 



*Obolus (Palseobolus) bretonensis lens. 

 *Lingulella atava. 

 *Lingulella collicia. 



Matthew [1903, p. 27] cites the following: 

 Obolus lens. 

 Obolus lens longus. 

 Lingulella tumida. 

 Lingulella sp. 

 Lep'tobolus atavus. 

 Ijeptobolus collicia. 

 Acrothele abavia. 

 Acrothele avia. 

 Acrothyra proavia. 



*Lingulella tumida. 

 *Acrothele avia. 

 Acrothyra proavia. 



Acrothyra proavia crassa. 

 Indiana ovalis. 

 Bradorona observator ligata. 

 Bradorona scrutator. 

 Bradoria rugulosa. 

 Bradoria vigilans. 

 Schmidtella? acuta. 

 Schmidtella? pervetus. 



