. ■ 99 



THE MARINE MOLLUSCA OF THE YORKSHIRE COAST 

 AND THE DOGGER BANK. 



By J. A. HARGREAVES. 



(Read before the Society, Novemtier lotVi, tgog). 



(Concluded from page 94). 



Eulima glabra (da Costa). — Rare at Scarborough (Bean). 



Eulima bilineata (Alder).— Dogger Bank (Brady, L. & M.) ; 

 Scarborough (Bean) ; several from shellsand, Scarborough. 



Stilifer stylifer (Turton). — Filey (Miss Backhouse,/^^ Leckenby); 

 on Ech. saxatili's, Scarborough (Bean). 



Caecum imperforatum (G. Adams). — Scarborough (Bean). 



Caecum glabrum (Montagu). —Scarborough (Bean). 



Turritella communis Lamarck. — Dogger Bank (Brady) ; off 

 Redcar (D.F., J.H.); Saltburn (M.L.T.) ; Scarborough (Bean); very 

 rarely dead shells on rocks at Scarborough. 



var. nivea Jeffreys. — Dogger Bank (L. & M.); occasionally at 

 Redcar (VV.C.H.). 



var. gracilis Jeffreys.— Dogger Bank (L. & M.). 



Trichotropis borealis Broderip & Sowerby. ^Dogger Bank (L. 

 and M., Jeff.); Scarborough (Bean); I have had a few from trawlers. 

 . Aporrhais pes-pelecani (Linne). — Dogger Bank (L. & M.); 

 one dead (Parke); Redcar, not common (W.C.H.) ; South Bay, 

 dead. Filey fishermen regard this as a great rarity. It is known to 

 them as the " Dogger Shell." 



Buccinum undatum Linnd — Dogger Bank (Brady, L. & M.); 

 rare, chiefly half-grown (Parke); Redcar, abundant (D.F., J.H.); 

 Saltburn and Staithes (J.H.); Scarborough ; Kilnsea (T.P.). At very 

 low tides numbers of this species may be seen on the flat reefs in the 

 South Bay ; the specimens are generally thick and short. The 

 species is used largely at Scarborough for bait in autumn and winter, 

 but the specimens are not obtained locally but from the Norfolk 

 coast, the fishermen stating that the shells are not so hard, and the 

 " fish " better for bait. 



var. littoralis King. — Dogger Bank (I>. & M.). 

 var. striata Pennant. — Dogger Bank (L. cSr M.); occasionally 

 from trawlers. 



var. pelagica King. — Dogger Bank (L. & M.); not uncommon 

 from trawlers, fine. 



I m. acuminatum Broderip. — Scarborough (Bean). Bean's own 

 collection contains many acuminate forms. 



m. sinistrorsum Jeff. — Bridlington (W.C.H.). 



