92 TOURNAI. OF CONCHOLOGY, VOL. I3, NO. 3, JULY, I9IO. 



Cingula semistriata (Montagu). — Redcar and Saltburn (J.H.); 

 this handsome little shell is sometimes abundant at Scarborough, 

 Filey and Bridlington. 



Cingula trifasciata J. Adams. — Redcar, scarce (W.C.H.) ; rare 

 in shellsand, Scarborough; Filey (T.P.). 



Barleeia rubra (Montagu). — Redcar (J. H.) ; Scarborough (Bean). 

 var. unifasciata Montagu. — Scarborough (Bean). 



Paludestrina stagnalis (Basterot). — Tees mouth (D.F.); in 

 swarms (W.C.H.) ; Redcar (Sc. Mus.); one in shellsand, Sandsend 

 (M.V.L.) ; Scarborough (Bean) ; abundant, Saltend and Spurn (T.P.). 



Skenea planorbis (Fabricius). — Not common, in shellsand, 

 Sandsend (M.V.L.) ; common in shellsand, Scarborough and Filey. 



Homalogyra atomus (Philippi). — Scarborough (Jeff.). 



Homalogyra rota (Forbes & Hanley). — Scarborough (Jeff.). 



Truncatellatruncata (Montagu). — Scarborough (Bean); Jeffreys 

 thinks this is a mistake. 



Capulus hungaricus (Linne). — Redcar (W.C.H.); near Salt- 

 burn (Mawson) ; very young, in shellsand, Sandsend (M.V.L.); I 

 have had several young in shellsand, and it is occasionally brought in 

 by trawlers. 



Crepidula fornicata (Linne). — Rev. W. C. Hey records this in 

 a Yorkshire list as occurring in the Humber. It is abundant in 

 North Lincolnshire. 



Trivia europaea (Montagu).— Dogger Bank, drifted (L. & M.) ; 

 Redcar, alive (D.F., J.H.); Saltburn, common (M.L.T.); alive at 

 White Nab, Scarborough (Harman) ; common, dead, at Scarborough, 

 Filey and Bridlington. 



Natica pallida Broderip & Sowerby. — Dogger Bank (Brady. 

 Parke) ; not uncommon thirty miles from Scarborough (Marshall) ; 

 not uncommon with Scala trevelyana (L. & M.) ; Scarborough (Bean); 

 off Flamborough in deep water (Parke). 



Natica sordida Philippi. — Dogger Bank, rare, dead (Parke). 



Natica catena (daCosta). — Dogger Bank, exceedingly large 

 (L. & M.) ; common, dead (Parke) ; often alive at Redcar and Tees 

 mouth (W.C.H.); Saltburn (M.L.T.) ; occasionally alive on sands 

 near Filey. The egg ribbons are common on the shore near Speeton. 

 Throughout the offshore area (M.B.A.). 



var. leckenbyi Marshall. — Dogger Bank in lo fathoms (Marshall). 



Natica alderi Forbes. — Dogger Bank (L. & M., Parke); common 

 but small (Brady); Redcar (J.H.); at times fairly common at Scar- 

 borough, and abundant in trawl ropes ; throughout the offshore area 

 (M.B.A.). 



var. lactea Jeff. — Dogger Bank (L. & M.). 



var. subovalis Jeff. — Off Bridlington in deep water (Rich). 



