SUPPLEMENT. 187 



P. 386. — T. donacina. F. Fairlie near Glasgow (A. Bell) ; 

 Antwerp Crag (Nyst, as Donax striatella of Brocchi) ; Italy 

 (Scacchi, Manzoni, and others). Yar. Lantivyi. Shetland, 

 18-82 f. Yar. distorta. Ban try and Dublin bays (Walpole) ! 

 F. N.W. Germany (Philippi). A dwarf variety has been 

 found by Professor Stossich at Trieste ; it is quite different 

 from T. pusilla of the same size. 



P. 387, 1. 12 from bottom, after " Sic." add " i. p. 39." 



P. 388.— T. PTTSILLA. 



Body pale yellowish- white : mantle slightly protruded ; 

 edges minutely and closely ciliated : tubes cylindrical and ex- 

 tensile, faintly lineated lengthwise ; upper tube much longer 

 than the other ; orifices plain ; the lower or excretal tube has 

 no valve : foot tongue-shaped and flexible. 



N. of Hebr., 189 f., living, with bright pink rays (C. and 

 T.) ; St. Andrew (M'Intosh) ! F. Pisa (Manzoni) ; Monte 

 Mario (Rigacci) ! E. Atlantic coasts of France, Spain, and 

 Portugal (Cailliaud, Lafont, M' Andrew, and others)!; Dalniatia 

 (Brusina) ! 



P. 389, 1. 2 from bottom, for " calcarea " r. " calcaria ". 



P. 389. — T. calcaria. A fine, perfect, and fresh but dead 

 specimen was dredged by the late Dr. M oiler (author of the 

 1 Index Molluscorum Groenlandias ') off Fair Isle between the 

 Orkneys and Shetland ; and I last year got a valve in the 

 same condition on the west coast of Shetland. I must, how- 

 ever, retain my doubts as to its qow living in our seas. 



P. 392. — Psammobia tellixella. F. Uddevalla (J. G. J.). 

 E. Morbihan (Tasle) ! ; Gulf of Gascony (Des Moulins and 

 Lafont) ! 



P. 394. — P. costulata. Herm, at low water; living. F. 

 Monte Mario (Conti) ! ; Rhodes (Mus. J. d. PL) ! E. Atlantic 

 coasts of France and Spain, Med., and Adr. Capt. E. J. 

 Bedford dredged at Oban a specimen an inch in breadth. 



P. 396. — P. Ferroexsts. F. Macclesfield (Darbishire) ; 

 Killiney (Walpole) ! ; Norway (Sars and others). E. Arcachon 

 (Fischer). 



P. 398. — P. vespertixa. F. Killiney (Walpole) ! ; Yesuvius 

 (Guiscardi). 



