230 NATURAL HISTORY SOCIETY. 



The sponges, corallines, and other undetermined and, for the 

 most part, minute objects have been temporarily grouped together 

 in one case by themselves. The following is a rough estimate of 

 this collection : 



No. of Species. 



Marine Shells, (from the lower St. Lawrence) 72 



Land and Fresh Water Shells ... ... . . ... . . . . .. ..81 



Bryozoa, (Sea mats, etc.) ■.'....' undetermined. 



Echinodermata, (Sea urchins, star fishes etc). 10 



Crustacea .4 



Cirripedes, (barnacles, etc.) 4 



Annelida, (marine worms, inhabiting, in this case, shelly 



tubes.) 6 



Sponges, (mostly species new to science.) .undetermined. 



It should be stated that the tablets upon which these specimens 

 are affixed were presented by the Geological Survey. 



Among the marine shells are three species : Crenella nigra, Gray ; 

 Trochus occidentalis, Mighels ; and Margarita obscura, Gould ; 

 which had previously been omitted in the lists of shells inhabiting 

 the Gulf of St. Lawrence as published in the "Canadian Naturalist." 



Di". Dawson has presented to the Society several species of 

 marine shells, echinodermata etc., from Gasp6, Labrador, Nova 

 Scotia, and the United States. Among them is the common 

 edible periwinkle of Europe (Littorina littorea) discovered by 

 Dr. Dawson at Pictou, Nova Scotia, where it is believed to have 

 been for the first time detected on the North American continent. 



Mr. E. J. Fowler has presented a series of specimens of eighteen 

 species of those Lower Canadian land and fresh-water shells which 

 were wanting to complete the Society's local collection. Some of 

 these are rare species, for the first time described as inhabiting 

 Lower Canada, in the April Number of the " Canadian Naturalist " 

 for 1863. The specimens of the above mentioned series have 

 been carefully arranged and named, with the donor's name at- 

 tached to each species. 



Mr. James Ferrier, Jun., has presented to the Society a most ex- 

 tensive and valuable series of foreign shells, including several 

 rare and interesting genera. The number of species is as 

 follows : 



From the Bay of Mazatlan, Mexico : 



Bivalves, 30 species. Univalves, 57. 



Exclusive of these 



Bivalves, 87 species. Univalves, 228. 



