NORWEGIAN OPISTHOBRANCHIATE MOLLUSCA 3 



Farn. Scapha^ndridae. 



Scaphander lignarius Linné, Reinø, Lofoten, 1 sp., 1. 

 20 5, — Landegodefjord, Bodø, 100—160 m, mud (Bjerkan ^Vs 

 1906), 3 small sps., max. 1. 9 (shell) — Foldenfjord, Namdalen (R, 

 Collett 1875), 2 sps., max 1. 16— Beian, Trondhjemsfjord, 3 

 sps., max. 1. 23— Kristiansund, (M. Sårs) many sps,, max. 1. 

 28— Molde 4 sps,, max. 1, 23.5— Manger, 2 sps,, max. I. 22.5— 

 Bergen, 1 sp., 1, 23— Tornaes (E. Arnesen), 5 sps., max, 1.21. 



Scaphander punctostriatus Mighels. Vadsø, many young 

 sps., max, 1, 16 (det. as „S, librarius var. alba") — Øxfjord, 2 sps., 

 max. 1. 17— Korsfjord, 130 fms, 1. 7— Bergen, 1 sp., 1, 23— 

 Tinnaes, Ullensvang, Hardanger 1 sp., 1, 8 — Brevigsfjord, 50 — 60 

 fms (S. H, 8/^2 1898), many sps., max. 1. 29— Torungerne, 4 sps,, 

 max, 1, 13,5— Tjømø (E, Arnesen 1908), 3 sps., max. 1, 18— 

 Hvitsten, 100 fms, 2 sps., max. 1. 16.5 — Kristianiafjorden, 

 many localities (Kiaer). 



Atys utriculus Brocchi. Lodshavn, 1 sp,, 1. 7. 



Cylichna cylmdracea Pennant. Manger or Florø (M. Sårs), 

 1 sp. 1, 10. 



Cylichna alba Brown. Vikten, 7 sps., max, 1. 6.5— Man- 

 ger, l*sp., 1. 7 — Skjaergehavn (Appelløf aug. 1898), 3 sps., 

 max. 1. 8— Bergensfjord, 60 m (Wollebaek), 1 sp., 1. 8— NW. 

 of Feiesten light, 105 fms, 1 sp., i. 7. 



Cylichna scalpta Reeve. Kjosen, 10 — 14 fms, numerous 

 sps., max. 1. 8 — Ramsfjord, Tromsø, 4 sps., max. 1. 7.5 (det. 

 as „C. propinqua S.") — Tromsø (Sparre Schneider), 1 sp., 1. 6. 



Fam. Diaphanidae. 



Thi.s family was proposed by me in 1914^ and estabhshed to 

 comprise the genera Diaphana, Newnesia and Ptisanula. The 

 characters of the family, which has been adopted also by Vayssière 



^ Ptisanula limnaeoides, a new arctic opisltiobranchiate mollusc, its ana- 

 tomy and affinities. Arkiv f. zoologi, K. Sv. Vet. Akad., Bd. 8. no. 25. 



