SUPPLEMENT. 215 



forms of the older tertiaries. Var. gracilis. E. Naples (Tiberi) ! ; 

 Dalmatia (Brusina) ! 



P. 207.— E. stenostoma. E. Loffoden L, 300 f. (Sara). 



P. 208. — E. subflata. F. Pisa (Manzoni) ; Monte Mario 

 (Rigacci) ! ; not Vienna basin ! Dr. Tiberi found at Naples a 

 dwarf form, which has the nsual slender shape and coloured 

 markings ; it shows that size is not the only character which 

 distinguishes this species from E. bilineata. 



P. 210.— E. bilineata. N. of Hebr., 170 and 189 f. (C. 

 and T.). F. Norway (Crosskey and Robertson) ! E. Loffo- 

 den I., 300 f. (Sars) ; G. Gascony (De Folin) !; G. Naples (Ac- 

 ton)!; Adriatic (Brusina) ! 



P. 214.— Natica Islandica. N. of Hebr., 189 f. (C. and T.) ; 

 St. Andrews (M'Intosh) ! 



P. 216, 1. 6 from top, for "Edwards" r. "Edward". 



P. 216.— N. Grcenlandica. N. of Hebr., 189 and 650 f. 

 (C. andT.); Skye (M« Andrew)! F. Belfast (A. Bell) ! ; La- 

 brador (Packard) ; New England (De Laski). 



P. 217, 1. 12 from bottom, for "south-west" r. "north- 

 west." 



P. 218. — N. sordida. Probably N. fusca, De Blainville 

 (Diet. Sc. Nat. t. 32, p. 252 ; name only). 



P. 220.— N. catena. Off Balta Sound, 40-50 f. (J. G. J.) : 

 off Fair Isle, 45 f. (Thomas) ! F. N.W. Germany and Rhodes. 



E. G. Naples (Acton and others) ! ; Sicily (Aradas and 

 others)!; Taranto (Costa). Nerita helicina, Brocchi. 



P. 224. — N. Alderi. F. Gottenburg (Malm). N.Poliana, 

 D. Ch. Var. ventricosa. Birterbuy Bay (Walpole). 



P. 227.— N. MoNTAcrrTi. N. of Hebr., 189 f. (C. and T.). 



F. Bohuslan (Thuden) ; Sicily (Tiberi and Seguenza) ! ; 

 Rhodes (Mus. J. d. PL) ! E. Loffoden L, 250 f. (Sars). Mr. 

 Waller found two young specimens of a scalariform monstrosity 

 in dredged sand from St. Magnus Bay. 



P. 229.— N. afflnis. N. of Hebr., 189 f. (C. and T.) ; 

 figured. E. Loffoden I., 300 f. (Sars). N. occlusa of S. 

 Wood, from the Bridlington deposit, is apparently a large form 

 of this species. Recognizable by the thick pad, which com- 



