172 BUCCINUM. 



2. BUCCINUM UNDATUM, Linn. 

 B. vulgare, Da Costa. 



Vars. B. striatum, Pennant. B. zetlandicum, Forbes (a deep-water 



form). 



" B. Labradorense, Keeve. B. Belcheri, Reeve. 

 " B. fragile, Verkriizen. B. conoideum, G. O. Sars. 

 Monstr. B. carinatum, Turton. B. acuminatum, Brod. 

 " B. imperiale, Reeve. 



3. BUCCINUM GRCENLANDICUM, Chemn. 



B. cyaneum, Brug. B. undatum, Fab. (not L.). B. tenebrosum, Hanc. 

 Vars. B. Donovani, Gould (not Gray). B. ciliatum, Gld. (not Fabr.). 

 " B. boreale (Leach), Gray. B. undulatum, Moller and Dawson. 

 " B. Humphrey si anum, Moll, (not Bennett), B. sericatum, Hanc. 

 " Tritonium ovum, Midd (not Turt.). B. fusiforme, Kien. (not 



Brod.). 



" B. Perdix (Beck), Morch. B. Finmarkianum, Verk. (a deep- 

 water form). 



" B. pulchellum, G. O. Sars. B. parvulum, Verk. B. sulcatum, 

 Friele. 



This species is closely allied to B. undatum ; and both may be 

 one and the same species. Herr Friele has shown that the cus- 

 pidation of the odontophore is not a reliable character for 

 distinguishing the species of this genus. 



4. BUCCINUM HYDROPHANUM, Hanc. 

 Vars. B. tumidulum, G. O. Sars. B. Morchi, Friele. B. nivale, Friele. 



5. BUCCINUM HUMPHREYSIANUM, Benn. 



B. anglicanum, Fleming (not Lamarck). B. Puxleianum, Leach. 

 Vars. B. veiitricosum, Kiener. B. striatum, Philippi (not Pemi.). 

 " B. Kieneri, Monterosato. B. inflatum, Benoit (not Deshayes). 



Not B. Humphrey sianum, of Moller, Loven, Middendorff, M. 

 Sars, Danielssen, or Malm. 



6. BUCCINUM TOTTENI, Stimpson. 



B. Terrce-novce (Beck), Morch. B. undulatum, Hanc. (not Moll.). 

 Vars. B. plectrum, St. B. Packardi, St. Tr. simplex, Midd. 

 " B. Amalise, Verkr. B. elegans, Verkr. 



7. BUCCINUM TENUE, Gray. 

 B. scalariforme (Beck), Moll. Tr. Ochotense, Midd. B. tortuosum, Rve. 



8. BUCCINUM CILIATUM, Fabr. 



B. cyaneum, Hanc. (not Brug.). B. Molleri, Reeve. 

 Tr. tenebrosum (as of Hancock), var b orealis, Midd." 



