134 Reviews — J. F. Whiteaves — Fossils of Manitoba. 



Bythocypris cylindrical Hall, sp. 

 Leperditia subcylindrica, n. sp. 

 Aparchites minutissimus, Hall, sp. 

 Aparchites unicornis, Ulrich, n.var. 

 Priniitia lativia, n.sp. 

 Brimilia? (? Beyrichid) parallela, n.sp. 



All the new species are figured, except the three distinguished by 

 an asterisk ; these probably were too thin or fragile to admit of the 

 process of grinding into thin sections. 



Under the description of Diplotrypa Westoni, Mr. Ulrich proposes 

 a new family — Diplotrypidce — to include (provisionally) the two 

 genera Diplotrypa and Monotrypa, the author suggesting that it may 

 be found necessary to break up each of these into two, but that 

 further study and detailed comparisons are required before a final 

 arrangement with regard to them can be effected. This he promises 

 to bring about in a forthcoming work on Illinois Polyzoa. 



The Ostracoda described in this report are, with one exception — 

 Eurychilina reticulata — all from Stony Mountain, and consist of the 

 following species : — 



Eurychilina reticulata, n.gen. and sp., 

 (from the Trenton shales of 

 Minnesota.) 



Eurychilina Manitobensis, n.sp. 



Strepula quadrilirata, Hall and Whit- 

 field, sp., var. simplex, n.var. 



Strepula lunatifera, n.sp. 



The author expresses his great obligations to Prof. T. Rupert 

 Jones, F.R.S., for critical notes on these species. 



The report concludes with a table prepared to show the strati- 

 graphical range of those Manitoba species of Polyzoa and Ostracoda 

 which have been found also in the United States, and from this we 

 learn that out of 29 species from Stony Mountain, 20 are known to 

 occur in the upper beds of the Hudson River or Cincinnati Group at 

 localities in the United States. 



The Canadian Survey is to be congratulated on having secured 

 the services of so careful and experienced a worker as Mr. Ulrich 

 for the difficult groups forming the subject of this report. 



A. H. F. 



III. — Descriptions of Eight New Species of Fossils from the 

 Cambro-Silurian Rocks of Manitoba. By J. F. Whiteaves. 

 From Trans. Royal Soc. Canada, Section iv. Nov. 1889, p. 75. 

 Six Plates. (Montreal, Dawson Brothers.) 



FOSSILS from such a distant region as Manitoba are valuable, not 

 only as an index to the age and distribution of the rocks on the 

 great continent of which that province forms a part, but also as 

 attesting the interest taken in Geology by a people whose pursuits 

 must leave them but little leisure for purely scientific studies. 

 Nevertheless we find from Mr. Whiteaves' paper that some of the 

 most notable of the fossils described by him were collected hj 

 members of the " Manitoba Historical and Scientific Society," and 

 by that Society presented to the Museum of the Canadian Survey 

 (Ottawa). 



The species described, though numbering only eight, represent 

 six genera, the first of which is a Gasteropod, and the rest Cephalo- 

 pods, as follows : 



