NORMAN : ON THE MOLLUSCA OF BERGEN FIORDS, 41 



41. Yoldia frigida, Torell. 



Yoldia frigida, Torell. Spetsbergen MoUusker, p. 28, 

 pi. i., fig. 3. 



Yoldia na7ia, M. Sars. Fossile Dyrelevninger fra Quartaer- 

 perioden, 1865, p. 99, pi. iv., fig. 118 — 120, Bidrag til Kunds. 

 Christianiafjordens Fauna, pt. ii., 1870, p. 98. 



Yoldia frigida, Reeve. Conch ol. Iconica. ' ' Yoldia," 1 8 7 1 , 

 pi. iv., fig. 16 (bad copy fi-om Torell). 



Found in several of the deepest dredgings, but numeric- 

 ally very scarce. Jeffreys has recorded it from Japan. 



42. Yoldia Messanensis, (Sequenza, MS.) 



Zeda acuminata, Jeffreys. Ann. Nat. Hist, July 1S70, 

 p. 5 (not Leda acuminata, Von Buch). 



Leda Afessanensis, Sequenza, MS., Jeffrey's 'Valorous' 

 Report, Proc. Royal Soc, 1876, p. 190. 



Described in 1870 from the Mediterranean. This well- 

 marked species has since been found in the bed of the 

 Atlantic by the 'Porcupine,' 'Valorous,' and 'Challenger' 

 Expeditions, and is now added to the Norwegian Fauna in 

 200 — 400 fathoms. The three stations in which it was 

 procured and where it was very rare are all in Oster Fiord 

 and close together. I believe Herr Friele had previously 

 found it in this locality. 

 43 Malletia obtusa, (M. Sars). 



Yoldia abyssicola, M. Sars. Chr. Videns-Selsk. Forhand., 

 1858, p. 86 (not Yoldia abyssicola, Torell). 



Yoldia obtusa, M. Sars. Chr. Videns-Selsk. Forhand., 

 1868, p. 256. 



Yoldia obtusa, G. O. Sars. " Some remarkable forms ot 

 Animal Life from the great Deeps off the Norwegian Coast," 

 pt. i., 1872, p. 23, pi. iii, fig. 16—20. 



Malletia obtusa, Morch', Skand, Naturforskermode, 

 1873, P- 375- 



