172 BUCCINUM. 



2. BUCCINUM UNDATUM, Linn. 

 B. vulgar c, Da Costa. 



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

 form). 

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

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

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

 " B. imperiale, Reeve. 



3. Btjccinum Grcenlandicitm, Chemn. 

 B. cyancum, Brug. B. tindatum, Fab. (not L.). B. tcnchrosuin, Hanc. 

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

 " B. boreale (T/each), Gray. B. undulatum, ]VI()ller and Dawson. 

 " B. Humphreysianum, IMoll. (not Bennett), B. sericatum, Hanc. 

 " Tritonivim ovum, ]\Iidd (not Turt.). B. fusiforme, Kien. (not 



Brod.). 

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

 water form). 

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

 Friele, 



This si)ecies is closely allied to 7?. uvdotiim ; and botli may l)e 

 one and the same species. Herr Fi-iele has sliown that the ciis- 

 pidation of the odontophore is not a reliable character for 

 distinguishing the species of this genus. 



4. BucciNUM Htdrophanum, Hanc. 

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

 5. BucciNUM Humphreysianum, Benn. 

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

 Vars. B. ventricosum, Kiener. B. striatum, Philippi (not Penn.). 

 " B. Kieueri, Monterosato. B. intlatum, Benoit (not Deshayes). 



Not B. Humphreysianum^ of Moller, Loven, Middendorff, M. 

 Sars, Danielssen, or Malm. 



6. BucciNUM TOTTENI, Stimjison. 

 B. TerrcB-novce (Beck), Morch. B. 'iindulatum, Hanc. (not M()ll.). 

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

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



7. BucciNUM TENUE, Gray. 

 B. acalariforme (Beck), Moll. Tr. Oelwtense, Midd. B. iortuosam, Rve. 



8. BucciNUM CILIATUM, Fabr. 

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

 Tr. tenebrosum (as of»Hancock), var borcalis, Midd." 



