BUCCINUM. 171 



Northern marine shells, is entitled to the careful consideration 

 of those specially interested in the correct elimination of specific 

 forms. I have not thought it advisable to change the synonomy 

 in accordance with Dr. Jeffre} T s' views, because my conclusions, 

 carefully worked out from the (inadequate) material accessible 

 to me, ought therefore to have a certain value, but I deem it ad- 

 visable to insert here Dr. Jeffreys' paper in full for the purpose 

 of comparison with my own results results which would doubt- 

 less have been much modified if this paper had been published 

 before I commenced my study of the genus. It will be seen that 

 a good number of species included in my monograph are omitted 

 from Dr. Jeffrey's paper. 



On the Northern Species of Buccinum. By J. Gwyn Jeffreys.* 



" The late Prof. Stimpson published, in the ' Canadian Natural- 

 ist ' for October, 1865, a ' Review of the Northern Buccinums.' 

 and gave sixteen species with fifteen synonyms. Having had the 

 privilege of examining his types, as well as those of Linne, 

 Fabricius, Turton, Bennett, Broderip, Forbes, Moller, Hancock, 

 Morch, Reeve, G. 0. Sars, Friele, Yerkriizen, and others, I 

 thought a revised list of the species might be useful, and I now 

 submit it. I recognize eight species only, with forty-six 

 synonyms ; and I believe even that number of species may be 

 reduced when more intermediate forms are observed. Their 

 fecundity and extensive distribution in the northern hemisphere, 

 added to the difference in the conditions of habitat and tempera- 

 ture, would account for the great variability of the species. 

 Buccinopxis connects Buccinum with Fusus. The generic name 

 Tritonium is undoubtedly subsequent to Buccinum, and included 

 Fusus, and what I consider its subgenera, viz., Sipho, Neptunea, 

 Chrysodomus, Volutopsis, and Boreofusus. 



1. BUCCINUM GLACIALE. Linn. 

 B. carinatum, Phipps. B.polaris, Gray. 



Vars. B. angulosnm, Gray. B. Donovani, Gray. 

 " B. Greenland! cum, Hancock (not Chemnitz). 

 " B. tubulosum, Rve. B. undatum, Dawson (not L.). 

 " B. EJancocki, Morch. B. turritum, Verkriizen. 



* Annals and Mag. Nat. Hist., 5th Ser., VI, 423, Dec. 1880. 



