334 WALCOTT 



illustrations.^ In the same brochure Mr. Matthew has included 

 the following species of the Lower Cambrian ' Etcheminian ' 

 fauna, supposing them to occur in strata which he refers to the 

 superjacent Cambrian : Hyolithes hathewayi, Afic?'odtscus belli- 

 marginatus, Agrauloi (Strenuella) stremms var., A. (S.) 

 attleboroiighcisis var., Mianacca -walcottiy M. angimargo, Ava- 

 lonia ^lana^ Proiol nus howleyi, Metadoxides 7nagnificus ? 



On some pieces of pinkish-colored limestone taken from the 

 upper surface of the conglomerate at Manuel s Brook last sum- 

 mer I found the following association of fossils : 



Helenia bella {U. gramilata Matthew) 



Hyolithes princeps 



H. quadricostatus 



H. similis 



H. terranovicus 



Coleoloides typicalis 



Olenellus (^Holmei) broggeri 



This fauna is typical of the Smith Sound section, with the 

 exception of O. {H.^ broggeri, which occurs, however, at 

 Smith Point in the upper 6 inches of the limestone series, some 

 six feet above the typical (Etcheminian) fauna as outlined by 

 Matthew in his paper on ' A Paleozoic Terrane Beneath the 

 Cambrian." 



As soon as I can secure the necessary time, I shall under- 

 take a review of all work done on the Lower Cambrian fauna 

 since 1890, in connection with the study of a large amount of 

 new material collected from various localities in North America. 



OLENELLUS FAUNA. 



Considering the ' Etcheminian ' to be pre-Cambrian, and the 

 Protolenus fauna to extend down close to the St. John quartz- 

 ite, Mr. Matthew frequently refers to the probable position of 

 the Olenellus fauna. In 1889 he considered it a pre-Para- 



' The Etcheminian Fauna of Smith Sound, Newfoundland : Trans. Roy. Soc. 

 Can., Vol. V, Sec. IV, 1899, pp. 97-123. 



^Fragments of Cambrian Faunas of Newfoundland : loc. cit., pp. 67-95. 

 3 Ann. N. Y. Acad. Sci., Vol. XII, pp. 52-54. 



