206 SUPPLEMENT. 



Suffolk. A dwarf and depauperated variety of L. rudis oc- 

 curred with it. 



P. 358, 1. 13 from bottom, for " Broome" r. " Brome". 



P. 361. — L. litoralis. F. Wexford (James) ! ; Christiania 

 (Crosskey and Kobertson) ! 



P. 361. — L. nekitoides. F. Belfast and Portrush (A. Bell). 



P. 364. — L. rudis. X. of Hebr., 189 f., probably trans- 

 ported by a tidal current (C. and T.). F. Norway. E. Med. 

 and Adr. ! ; Azores, very young specimens (M' Andrew) ! ; 

 Mexico (Brit. Mus.) ! Var. tenebrosa. N. Japan (Schrenck). 

 L. subtenebrosa, Midd., from the sea of Okhotsk, appears to be 

 another variety of this polymorphous species. 



P. 368. — L. litorea. E. Toulon Harbour (De Blainville); 

 Lusin I., Adriatic (Grube) ; Nova Scotia (Stimpson) ; Mexico 

 (Brit. Mus.) ! Perhaps L. squalida of Broderip and Sowerby 

 (from the Arctic seas) and L. grandis of Middendorff (from the 

 sea of Okhotsk) may be varieties. In old Cornish-English 

 '- guihan," Borlase. 



P. 377. — Same remark as to the preceding volumes. 



Vol. IY. p. 5. — Rissoa striatula. F. Lochgilp glacial 

 bed, Clyde district, with R. cancellata (Crosskey and Kobert- 

 son)!; Selsea (A. Bell)! Probably Turbo lucullanus, Scacchi. 



P. 7. — R. LACTEA. 



Body milk-white, with minute chalky specks ; upper part 

 of the head of a pink hue : mantle thick and large ; the usual 

 filiform process at the right-hand corner of the mouth of the 

 shell indistinctly appears in the shape of a small tubercle : 

 head prominent ; Hps deeply cloven : tentacles rather long, 

 cylindrical but compressed, sparingly covered with very fine 

 cirri, which are more conspicuous at the top : this part is 

 rounded: eyes black, very distinct: foot lanceolate, broad, 

 squarish in front, with slight auricles or corners, ending in a 

 short pointed tail: opercular appendage single, not extend- 

 ing beyond the tail. Timid, although active. 



This description was taken from a couple of specimens 

 which I found at Zara under a stone near low-water mark. 



P. 8, 1. 17 from top, dele parenthesis, and for "of" r. 

 " and ". 



