50 NORMAN: ON THE MOLLUSCA OF BERGEN FIORDS. 



Helonyx suhfusiformis, Monterosato. Nuova Revista 

 delle Conchyglie Mediterranee, 1875, p. 20. 



In the upper part of Kors Fiord, directly south of the 

 entrance to Bukken, in 100 — 200 fathoms. This shell was 

 dredged by Jeffreys and myself in Shetland, but the more 

 abundant form in Shetland, and that which is described and 

 figured under this name, Cadulus suhfusiformis, in " British 

 Conchology," has since been regarded as a distinct species, 

 and has been named by Marquess Monterosato Heloriyx 

 Jeffreysii. He places these allied forms in the genus Helonyx^ 

 Stimpson, and thus distinguishes them. 



" Helonyx Jeffreysii. Apertura anteriore obliquamente 

 troncata ; base o apertura posteriore compressa, leggermente 

 intaccata a chiascum lato." 



" Helonyx suhfiisiformis. Piu piccolo e meno gibboso 

 del precedente ; apertura anteriore troncata ; apertura pos- 

 teriore non compressa circolare e non intaccata." 



116. Cadulus propinquus, G. O. Sars. 



Cadulus propinqiius, G. O. Sars. Moll. Reg. Arct. Norw., 

 1878, p, 106, pi. XX., fig. i5a-b. 



Larger and more tumid than the last ; occurring in several 

 stations, Oster Fiord, Bergen and Kors Fiord, in 100 — 400 f. 

 Just described by Sars. 



118. Chiton alveolus, M. Sars. 



Chiton alveolus, M. Sars, MS. Love'n, Index Moll. Scand. 

 (in Kong. Vet. Akad. Forhand., 1846), p. 159. 

 Frequent in depths down to 100 fathoms. 



130. Lepeta caeca, (MuUer). 



Oster Fiord, north of Bukken, and Kors Fiord, in 10 — 

 180 fathoms. 



137. Cyclostrema basistriatum, Jeffreys. 



Cyclostrema basistriata, Jeffreys, MS. Friele, Oversigt 



J.C, ii., Feb., 1879 



