44 The Ottawa Naturalist. 



NOTE ON CARDINIA SUBANGULATA DAWSON, AND ARCA 

 PUNCTIFER DAWSON. 



By Henry M. Ami. 



Some time ago the writer had occasion to call Sir William 

 Dawson's attention to the above species of fossils from the 

 carboniferous limestone of Windsor, Nova Scotia, stating that 

 the names which they bore were pre-occupied. In reply Sir 

 William has requested me to publish the following names or desig- 

 nations for the two species described by him in his " Acadian 

 Geology," page 304, London, 1868. 



For Cardinia siibangulata, Dawson, Acadian Geology, 

 p. 304, fig. 108, London, 1868, Cardinia angulifera is proposed. 



For Area punctifer, Dawson, Acadian Geology, p. 304, 

 London, 1868, not figured, Area puncticostata is proposed. 



NATURAL HISTORY NOTES FOR APRIL, 1896. 



The following notes of the dates of arrival of birds in April 

 of this year are not intended for those which may have been 

 observed in any specially sheltered spot, as individual arrivals, 

 but are of those which appear generally around Ottawa. 



Robins appeared in gardens on the 9th, and were numerous 

 on the loth instant. 



The Song Sparrow (the " rossignol" of Ouebecj was first 

 heard on the morning of the loth instant, its arrival this year 

 being remaikably late. Last year it arrived the 3rd of April, 

 and in 1894 it and Blue-birds were seen on the nth March. 

 Its ordinary arrival is the 27th March. This year a cold 

 and continuous north and north-west wind set in on the 

 26th March, continuing with little intermission to the 9th of 

 April, when a warm south-west wind blew, and apparently 

 brought with it our early birds. 



The Blue-bird was seen on the nth of April. 



The Purple Grackle abundant on the 13th. 



The Pewee was heard uttering its plaintive note on the 19th. 



