184 SUPPLEMENT. 



Corunna (M' Andrew and H. Woodward) ! Unquestionably 

 Venus Oyrilli of Scacchi, from comparison with the types. 



P. 327. — Yextjsexoleta. F. Antwerp Crag (Nyst) ; Nor- 

 way (Sars) ; Pisa (Manzoni). 



P. 330. — Y. lincta. F. Norway (Sars and others) ; Pisa 

 (Manzoni). 



P. 332.— V. Chione. F. Macclesfield, 500-1200 ft. (Dar- 

 bishire) ! ; Selsea (A. Bell) ! ; Antwerp Crag (Nyst). 



P. 334— Y. fasciata. N. of Hebr., 189 f. (C. and T.). 

 F. Norway (Sars). E. Jokohama, Japan (Allcock) ! 



P. 337.— Y. Casina. 



Body fleshy, pale lemoncolour, mottled with pink and 

 closely speckled with white: mantle protruding beyond the 

 shell ; edges beautifully friuged with short cirri : tubes coni- 

 cal, extended sometimes to a length equal to J the breadth 

 of the shell ; they are united, except at their orifices, which 

 are sometimes brown, and each is encircled with about 20 

 cirri : foot large, thick, and tongue-shaped or securiform. 

 The animal moves from place to place by attaching the point 

 of its foot, and, after expanding and extending it, withdrawing 

 its hold and expelling forcibly the water it had taken in • by 

 repeating this operation it soon traverses a considerable dis- 

 tance. 



N. of Hebr., 530 f. (C. and T.). F. Moel Tryfaen (Drury 

 Lowe) ! ; Pisa (Manzoni). 



p. 339.— Y. verrucosa. F. Strethill, Salop (Maw)!; Port- 

 rush (Portlock) ; Killiney (Walpole) ! ; not Coralline Crag ; 

 Italy (Scacchi and others). E. Africa, America, and Indian 

 Ocean (Romer). Cultivated in the west of France and at 

 Monaco as an article of food. M. Lallemant believes that it 

 arrives at maturity in eight months. 



P. 342.— Y. ovata. N. of Hebr., 189-550 f.; brightly and 

 deeply coloured specimens (C. and T.). F. Scandinavia and 

 Itaty. E. Attached to Mediterranean telegraph-cable between 

 Cagliari and Bona, at a depth of 2000 metres (Milne-Edwards, 

 fide WeinkairfF). 



P. 344. — Y. gallina. F. Portrush (Portlock); Killiney 

 (Walpole) ! ; Scandinavia (Sars and others) ; Pisa (Manzoni). 

 Yar. laminosa. E. Japan (Allcock) ! Mr. M'Andrew, in his 



