NORMAN: ON THE MOLLUSCA OF BERGEN FIORDS. 49 



their very slight curvation, have a greater proportional dia- 

 meter than I and 2, Sars' type specimens, which were from 

 the greater depth of 200 — 300 fathoms, while that from Sogne 

 Fiord at the great depth of 670 fathoms is of about the same 

 proportions as these latter. The specimens of each form 

 measured by me are not in any other way selected — they are 

 simply the largest I possess. 



113. Siphonodentalium Lofotense, M. Sars. 



Siphonode7italiHm Lofotense, M. Sars. Malacozoologiske 

 Jagttagelser (in Chr. Videns-Selsk. Forhand., 1864), p. 17, 

 (separate copy), pi. vi., fig. 29 — 33. 



Siphonodentalium Lofotefise, Jeffreys. Brit. ConchoL, v., 

 p. 195, pi. ci., fig. 2. 



Oster Fiord, Bergen Fiord, and upper part of Kors Fiord, 

 opposite entrance to Bukken, in 100 — 400 fathoms. 



114. Siphonodentalium tetragonum, (Brocchi). 



Entalina tetragonum, Brocchi. Notiz. foss. M. pell, e 

 Ficar., p. 27 (fide Monterosato). 



Dentalium quinquangulare, Forbes. Brit. Assoc. Rep., 

 1843 (1844), p. 188. 



Dentalium abyssorum, junior, Sars. Foss. Dyrelevninger 

 fra Quartaerperioden, 1864, p. 43, fig. 107 — 109. 



Sipho7iodentalium pentagonum, M. Sars. Malacozoolo- 

 giske Jagttagelser (in Videns-Selsk. Forhand, 1864), p. 27, pi. 

 vii., fig. 45—55 (figurse bonae). 



Dentalium quinquangulatum, Reeve. Conchol. Iconica, 

 " Dentalium," 1872, pi. v., fig. 35 (figura mala). 



Common in fine mud, 50 — 400 fathoms. 



115. Cadulus subfusiformis, (M. Sars). 



Siphonodentaliitm subfusiforme, M. Sars. Malacozoolo- 

 giske Jagttagelser (in Chr. Videns-Selsk. Forhand., 1864,) 

 p. 21, pi. vi., fig. 36 — -40 ; pi. viii., fig. 41 — 44 (but not Cadulus 

 subfusiformis, Jeffreys' British Conchology.) 



J.C. ii., Feb., 1879. B 3 



