No. 5.] NATURAL HISTORY SOCIETY. 295 



ated, of which one is fossil, and of another the specific name is 

 not given. 



The Hydrozoa have been submitted to further microscopical 

 examination. Eleven species have been added to our fauna, of 

 which two are new to America. Some of the deep sea species 

 are different from any of those described by English writers. 



No special novelties occurred among the Alcyonaria and 

 Zoantharia collected last summer, but the whole series has been 

 carefully studied and all the species made out and labelled. 

 The Echinodermata have given better results, eight species new 

 to the St. Lawrence, of which three are new to America, have 

 been collected and determined. Three of these are brittle stars 

 and three sea cucumbers. 



A further portion of the Marine Polyzoa has been carefully 

 studied. The latest catalogue of these beautiful corallines, 

 published as a report to the department of Marine and Fisheries 

 last year, gave H9 species. Fifteen additional forms have been 

 recognized, all of which are new to the Gulf of St. Lawrence. 

 Most of them are very rare and striking kinds, and several of 

 them are new to the American side of the Atlantic. Not one 

 half of the material collected, however, has been examined, even 

 in a somewhat cursory way. 



The whole of the Tunicates of the St. Lawrence in the So- 

 ciety's collection, with the exception of a purple Botryllus, whose 

 specific relations are still obscure, have been determined and 

 labelled. There are some 17 species, and the Society is indebted 

 to Prof. Verrill, who has made the study of these molluscoids a 

 specialty, for the identification of several critical species, origin- 

 ally described by him. 



The Shells proper, collected last summer, have all been exam- 

 ined and determined. In 1869 the catalosrue of shells from the 

 Northern part of the Gulf, which was complete up to date, gave 

 115 species. Including the discoveries of Mr, Willis on the 

 Nova Scotian coast and additional species dredged by Principal 

 Dawson, as well as novelties obtained in the government expedi- 

 tions of 1871, 1872, and 1873, 21-4 species are now known from 

 that region. 



Of these 91 are bivalves 

 " " 107 " gasteropods. 

 " '' 3 " pteropods. 

 " 3 " cephalopods. 



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