Gulf of St. Lawrence, 219 



number more nearly as large, I have also a specimen from the 

 Island of Anticosti. 



Anomia ephippium. — Ste. Ann, adhering to the dorsal valves 

 of Pecten Islandicus ; also dredged at Marc^uin. 



Terehratula* psittacea. — Common in the stomachs of flound- 

 ers and haddock at Ste. Ann. At Ruisseau Vallee I procured 

 more than 130 fine specimens of this shell in a spot where there 

 had been a heap of fish offal, but all the soft matter having de- 

 cayed away, nothing remained but the bones of the fish and the 

 shells which their stomachs had contained. A considerable num- 

 ber of living specimens were dredged in GO fathoms off the 

 mouth of the Marconi n River. There were also many valves and 

 imperfect specimens in the material dredged ln.-re, showing that 

 this species is very plentiful on tin- Gaspe coast. 



Tunicaries of the genus Assidium were very common between 

 Cape Chatte and Ste. Ann. 



(Fresh Water.) 



JJnio radiatus. — Very abundant in the Ottawa and some of 

 its tributaries from Ottawa City downwards in the Lachine Canal 

 and the St. Lawrence in the vicinity of Montreal. Mr. Billings 

 has a number of specimens of this and the next species from 

 Lake Ni pissing. 



U. complanatus. — Lake Nipissing, Ottawa River, Lachine 

 Canal and tin' St. Lawrence as far down as Berthier below the 

 Inland of Orleans, where the last living s. e amen was obtainedi 

 but valves both of this and the preceding species were very fre- 

 quently found on the beach all tie' w ty down to Gaspe. Abun- 

 dant in Lake St. John, and sail to inhabit the Little River St. 

 Margarite on the north shore opposite S e. Ann, <ia^j>e. 



U. gibbosus. — Very abundant in the Ottawa at L'Orignal, and 

 on St. Helen's Islan I, Montreal. 



XT. ventricosus. — Bonechere and Ottawa U;\ r . Lachine Canal 

 and St. Lawrence mar Montreal. 



U. eWipsw.— Culbute, (the channel between Calumet Island and 

 the north shore of the Ottawa) and St. Helen's [sland. 



U. rectus. — Culbute, Ottawa near L'Original, Lachine Canal 

 and St. Helen's Island. 



U. alatus. — Common in Ot awa a L'Orginal, where I once 

 caught a lai ti with a baited fish-1 ook in ab n 



of wa' 



* (Hypolhyris.) 



