Book Notice. 390 



The following four species recorded from Canadian collections, 

 and at present in the British Museum, (Nat. History Department) 

 are of special interest to us, viz ; — 



TROCHOHBRATIDiE. 



1. Trochoceras boreale, Foord, from the Silurian Rocks of Wel- 



lington Channel, in British Arctic America, collected 

 by Capt. Ingle field, p. 23 



2. T Halli, Foord, (" Lituites undatus " of Hall, Chapman, 



Billings and others). 



From the " Black River " rocks of Lorette, near 

 Quebec, Canada, of which two views of a good specimen 

 with description of this new species are given, pp. 

 41-44. 



NAUTILIDiE. 



Trochulites planorbiformis, Conrad. 



This form is recorded from the Trenton limestone of 

 Montmorenci and Lorette, Que., which were present- 

 ed to the British Museum authorities by Dr. Bigsby. 

 Mr. Foord gives interesting notes on the early and 

 nepionic stages of growth of the Canadian example 

 of T. planorbiformis after which he appends a list of 

 references to the British fossils, which have been 

 referred by different authors to Trocholites planorbi- 

 formis, pp. 48-49. 



SUPPLEMENT. 



ACTINOCBRATID/E. 



Huronia, Portlocki Stokes : — From the Niagara Group of 

 Drummond Island, Lake Huron, where Stokes obtain- 

 ed the specimen from which he described and figured 

 the species in " Trans. Geol. Soc, London ; Ser. ii, vol. 

 V, pt. iii, p. 710, pi. IX, figs. 5, 1840. 



Henry M. Ami. 



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