SUPPLEMENT. 213 



P. 149. 0. INDISTINCTA. F. Vienna basin, and Italy ! 

 E. Arcachon (Lafont) ! ; Algeria ( WeinkaufF) ! ; Venice (G. v. 

 Martens)!; Dalmatia (Brusina)!; Madeira (Watson)! I have 

 a specimen from the Mediterranean, which is furnished with a 

 slight tooth-like fold on the pillar. 



P. 151. 0. INTERSOTCTA. N. of Hebr., 189 f. (C. and T.). 

 E. Med. and Adr. ! Var. terebellum. F. Vienna basin and 

 Italy! E. Med. and Adr. Strombus obliquatus, v. Miihlf., 

 Auricula striata, G. v. Martens, and Truncatella exilis, Menke. 

 Var. suturalis. F. Selsea (A. Bell) ! 



P. 154. 0. SPIRALIS. F. Portrush (Portlock and A. Bell) ; 

 Monte Mario (Kigacci) ! E. G. Gascony (De Folin) !; Adri- 

 atic (Stossich) ! 



P. 155. 0. EXTMIA. N. of Hebr., 170 and 189 f. (C. and 

 T.) ; St. Magnus Bay and Unst, 45-100 f. (J. G. J.). Apex 

 sometimes truncated. 



P. 156 0. FENESTRATA. F. Italy and Ehodes! E. G. 



Gascony (De Folin) ! ; G. Naples (Stefanis) ! Chemnitzia 

 Rigacd, Conti. 



P. 158. O.EXCAVATA. F. Largs, Ayrshire (Landsborough); 

 Monte Mario (Eigacci, as Rissoa trinodosa of Eayneval)!; 

 Ehodes (Mus. J. d. PL) ! E. G. Gascony (De Folin) ! 



P. 160. 0. SCALARIS. ITnst. F. Italy. E. Madeira (Wat- 

 son) ! Var. rufescens. N. of Hebr., 189 f. (C. and T.). 



P. 162. 0. RUFA. F. Italy ! Parihenia fasciata, Forb., 

 is probably the young. 



P. 164. 0. LACTEA. F. Belfast and Selsea (A. Bell)!; 

 Vienna basin (Homes) !; Ehodes (Mus. J. d. PL) ! 



P. 167. 0. PUSILLA. Birterbuy Bay (Walpole)! F. Vi- 

 enna basin, Italy, the Morea, and Ehodes! E. Dalmatia 

 (Brusina) ! 



P. 169. 0. SCILLJS. N. of Hebr., 170 f. (C. and T.). F. 

 Norway, Vienna basin, and Italy ! E. G. Naples (Stefanis) ! 

 Var. compactilis. St. Magnus Bay, 



p. 170. 0. ACICULA. F. Norway and Italy ! E. Loffo- 

 den I., 300 f. (Sars). I have a specimen from the Gulf of 

 Naples, which exhibits a conspicuous tooth. Var. ventricosa : 



