272 BEV. K. B. WATSON ON THE 



p. 344) gives Aclis (Pherusa) Gulsonce, Clerk, as Madeiran on 

 my authority. I am not aware that I ever thought so ; if I 

 did I was mistaken. A. vitrea sent by me was probably the 

 species which led to the mistake on Dr. Grwyn Jeffrey s's part. 



8. Acmcea virginea, 1776, Miiller (as Patella), Zool. Dan. Prod. 



I. pi. xii. 4, 5 : Gwyu Jeffreys, Brit. Conch, in. 248 ; & Y. 200, 

 Iviii. 4. Hah. Doubtfully Arctic or Mediterranean. It 

 extends from Iceland (Torell) to Mogador {McAndrew). 

 (L., Jn.,W.) From Punchal along the whole south-east coast 

 and also to Porto Santo. Very common. 



9. Actceon piisilliis, 1843, Porbes (as Tornatella^, B. Assoc. Eept. 



^Egeau Inverteb. p. 191 ; Watson, Chall. Rep. p. 627 ; Dall, 

 ' Blake ' Eep., Harv. Coll. Bull, xtiii. 39. Rah. North 

 Atlantic from Cuba to Mediterranean, 40 to 1456 fms. 

 (W.) Magdalena, 100 fms., in an old jar entangled in a 

 fishing-line ; Punta de Sao Lourengo, 50 fms. 3 specimens. 



10. ActcBon tornatilis, 1767, Linne (as Voluta), Syst. Nat. p. 1187: 



Gvvyn Jeffreys, Brit. Conch, iv. 433, viii, 4 ; & V. 224, xcv. 2. 

 Sah. Prom the Lofotens to the Mediterranean and Moga- 

 dor. (W.) Punchal. — I have three specimens given me as 

 from Punchal ; other specimens, too, I have seen said to be 

 from the same locality. I never found it, but (hesitatingly) 

 accept it as Madeiran on the strength of these specimens 

 and the fact that both McAndrew and Lowe got it at 

 Mogador. 



11. Adeorlis subcarinatus, 1803, Montagu (as Helix), Test. Brit. 



II. 438, vii. 9 : Grwyn Jeffreys, Brifc. Conch, iy. 231, iii. 5 ; 

 & Y. 216, Ixxix. 1. Hah. Prom the English Channel to 

 the Adriatic and the ^gean. (W.) Prom deep water. 

 One specimen. 



Alvania, see Bissoa. 



12. Amphidesma castanea, 1803, Montagu (as Donax), Test. Brit, 

 p. 573 : Gwyn Jeffreys, Brit. Conch, ii. 413, viii. 1 : & y. 188, 

 xliii. 1. Prom the English Channel to the Canaries. (M., 

 L., N., Jn., W.) Everywhere; very common. 



13. Amphisphyra flava, 1897, Watson, antea, p. 234. 



14. Anomia ejpMppium, 1767, Linne, Syst. Nat. p. 1150: Grwyn 



Jeffreys, Brit. Conch, ii. 30, i. 4; & y. 165, xx. 1. Hah. Prom 

 Iceland to Madeira, and from N. America to the Black Sea. 

 (M., L., N"., Jn., W.) Punchal. Not common. 



15. Aplysia punctata, 1803, Cuvier, Ann. Mus. ii. 295, i. 2-5 : 



