88 THE CANADIAN NATURALIST. [April 



Menestho albula, Moll. 



* Turritella erosa, Couth. 

 Natica clausa, Sow. 



N. Grcenlandica, Mull. 



* N. catenoides? Wood. 



Bela harpularia, Gould, (Woodiana, Moll.). 



* B. violacea, Migh. 



* B. decussata, Couth. 



* B. turricula, Mont. 



B. rufa, Gould, (pyramidalis). 



Buccinum undatum, Linn., and var. Labradorense, Reeve. 



* B. glaciale, Linn. 



* B. scalariforme, Moll. 



* B. cretaceum, Reeve. 



Fusus tornatus, Gould, and var. despectus, Linn. 



* Trophon clathraturn, Linn. 

 T. scalariforme, Gould. 

 Trichotropis borealis, B. and S. 



Note. — I regard jB. Labradorense as merely a variety of B. undatum, 

 peculiar, like the oval or aknond-shaped variety of Mytilus edulis, to 

 the mouths of rivers. The species which I have named B. cretaceum is 

 certainly distinct, but I am by no means sure that it is really B. creta- 

 ceum of Reeve. B. glaciale is common at Montreal and at St. Nicholas ; 

 but the specimens from Riviere-du-Loup enabled me for the first time to 

 recognize it. 



ANNULATA. 



* Spirorbis nautiloides, Lam. 

 S. vitrea, Stimp. 



* S. sinistrorsa, Mont. 



* S. quadrangularis, Stimpson. 



CRUSTACEA. 



Balanus Hameri, Asc, var. Uddevallensis. 

 B. porcatus, Da Costa. 

 B. crenatus, Brug. 

 Cytheridea Mulleri, Mun. 



* Hyas coarctata, Leach. 



Of the above species, Panopeea Norvegica, Fusus tornatus, Leda 

 truncata, L. tenuisulcata, Astarte compressa, Mytilus edulis, Mya 

 arenaria and Littorina pallieita, had been collected at Riviere- 

 du-Loup, by the officers of the Survey, previous to my visit. 

 Mesodesma Jauresii had also been collected from littoral gravels 

 east of Cacouna, but was not met with by me. 



