242 Scientific Intelligence. 



adensis), 4 Rhynchonella eminens, 5 Eatonia peculiar is, 6 E. cf. 

 whitjieldi, 7 Spirifer arenosus, 8 S. gaspensis, 9 S. montrealensis 



n. sp. (look almost like genuine 5. granulosus), 10 & cunihcr- 

 landicB, 11 S. pennatus helenoz, 12 Metaplasia pyxidata, and 13 

 Cyrtina rostrata. To these must be added 14 Chonostrophia 

 montrealensis described by Scliuchert but not seen by Williams. 

 In the light of our American Devonian assemblages we see here 

 a very much mixed fauna. Numbers 1 and 4 are Helderbergian 

 forms, while 9 and 11 are decided early Hamilton reminders. 

 The remainder of the fauna suggests later Oriskanian. In the 

 Oriskany of Cumberland, Md., the reviewer has also collected 

 shells of the type of S. montrealensis, but these are by no means 

 so near the Hamilton $. granulosus as seemingly are the St. 

 Helen's specimens. Further, the reviewer, while collecting on 

 the island in 1900, noted that the two species 9 and 11 occurred 

 together, but he then saw no other forms in the " flat block of 

 limestone " in the agglomerate. For this reason he held their 

 age to be Onondaga. It was Mr. Ardley who directed him to 

 these fossils and associations and Williams' S. arenosus fauna of 

 25 species has since been quarried out of this same block. The 

 majority of the fauna is imdoubtedly Oriskanian and yet the 

 aspect is more recent than any fauna of this series in the Appa- 

 lachian-New York area. 



Williams clearly recognizes that the St. Helen's Spirifer are- 

 nosus fauna is unique and believes it to be somewhat younger 

 than any Oriskanian fauna of New York but older than the 

 Onondaga. Faunas of the same age as that of St. Helen's but of 

 another basin, linking more direct^ with the European Coblen- 

 zian, he holds are those of Nictaux, Nova Scotia, York river, 

 Gaspe, and Moose river, Maine, in which " are seen traces of the 

 . . . Hamiltonian magnafauna." He further holds that the 

 Onondaga fauna came in along the western side of the Cincin- 

 nati axis, finally spreading to the St. Lawrence valley and there 

 met and mixed with the northern Atlantic fauna " on the Ameri- 

 can border at the time of the departure of the Oriskanian ele- 

 ment rather than at the opening of the Hamilton epoch. This 

 interpretation is in harmony with the mingling of these same two 

 magnafaunas [lower Devonian and Hamilton] in the lower 

 Devonian (Coblenzian) of Europe." 



The reviewer agrees with Williams that the Oriskanian faunas 

 of the maritime province of eastern Canada are considerably 

 Coblenzian in faunal aspect and that the Hamilton aspect appears 

 earlier in this European assemblage, but he still believes that the 

 York river fauna near the base of the Gaspe sandstone as 

 described by Clarke (1908) is considerably younger than the 

 Spirifer arenosus fauna, for the reason that the latter assemblage 

 at Gaspe occurs at a very much lower horizon, in fact, at the 

 base of the Grande Greve limestone. c. schuchert. 



14. Palceontologia Universalis, ser. Ill, fasc. II, 46 sheets, 

 July 26, 1910. — In this new part of the Palseontologia Univer- 



