MARSHALL : ADUITIONS TO BRITISH CONCHOLOGY. I93 



University Museum, should be seen by all conchologists. It will 

 either fill them with despair or urge them to greater emulation. 



Unfortunately, Mr. Barlee had no literary side to his conchological 

 character, or we should probably have had some interesting account 

 of his researches. He only made a list of the dredging spots and of 

 the rarer species he found at each, which he afterwards gave to Mr. 

 Damon of Weymouth. I had the use of this list in my early days 

 when I commenced dredging, and found it of much value. 



C. concatenata Conti. — Scilly Islands (Burkill and J.T.M.); 

 Channel Islands, Land's End, Battery Rocks at Penzance, living in 

 rock-pools at low water ; Eddystone, Torbay, Killala Bay, and Barra 

 in the outer Hebrides, i2f , two specimens. The latter locality is a 

 remarkable one. Fossil in the Red Crag (S. Wood) as C. tubercularis 

 var. nana. 



var. lactea Marsh., yi^/^/v/. of Conch., i8gi, vol. vi., p. 346. — 

 Scilly Islands (Burkill and J.T.M.). Gwyn Jeffreys gives (name only) 

 a var. alba from Guernsey in the Annals for 1859. I have similar 

 specimens thence, but regard them as bleached or water-worn. Of 

 the Scilly examples there is no doubt. 



A variety occurs at Guernsey, Scilly, and the west of Ireland, whicli 

 has only four whorls besides tlie embryonic ones; these four whorls 

 are of uniform width, and the length of the whole shell is one-tenth 

 of an inch. Gwyn Jeffreys' description does not mention the em- 

 bryonic whorls ; they seem to be shed at a very early stage, for they 

 are rarely present even in the young. However, the embryo consists 

 of four smooth whorls, and scarcely differs in form from that of C. 

 tubercularis. His figure is a good one of the type-form, which is a 

 short cylinder ; but many specimens are more regularly conical, like 

 Sowerby's. And his dimensions are not only extreme, but dispro- 

 portionate, being too broad for the length ; the largest are o'i5 in. by 

 0*05. His original figures in tlie Annals are conical, like Sowerby's, 

 and have eight whorls, six sculptured and two smooth embryonic 

 ones, though here also he does not describe the latter, while he gives 

 the number of whorls as seven. I have a specimen from Scilly ex- 

 ceeding two lines in length, but that is quite exceptional. 



C. metaxae Del. Ch. — Scilly Islands (Smart and others) ; St. 

 Martin's Point and Fermain Bay, Guernsey, i2-22f. ; Eddystone, 3of. 

 var. angUStissima Forb., Joum. of Conch., 1893, vol. vii., p. 

 259- — Scilly Islands and Plymouth Sound. 



var. alba Marsh., loc. cit., p. 260. — Channel and Scilly Islands. 



The more specimens there are examined of this very rare species, 

 the greater will the extent of its variation be apparent. Gwyn 

 Jeffreys' dimensions, which are right, indicate an obelisk rather than 



