SPIRIALIS. 385 



The outer lip is simple, arcuated above, aud subrectiliuear 

 below ; the inner one is straightish, and by its reflection 

 conceals the umbilical chink. 



The Spirialis Fleiningii was met with by its discoverer 

 among shell sand collected in Noss Island, Zetland, after a 

 storm in the spring of 1809. He rightly observed that it 

 was not the fry of a large shell. In 1840 more specimens 

 were found by Mr. Hyndman among shell sand collected 

 by Mrs. Hancock at Bundoran on the coast of Donegal. 

 In 1848 Mr. M'Andrew dredged dead specimens in sixty 

 fathoms of water, fifteen miles from Mizen Head, south of 

 Ireland. It was afterwards taken off Arran in Ireland, in 

 Skye and Zetland, and at Guernsey, by Mr. Barlee. 



The Spirialis ventricosa of Eydoux and Souleyet is 

 nearly allied to our species. 



S. MacAndrei, Forbes and Hanley. 



Turreted-fusiform, the body whorl not equal in length to the 



spire. 



Plate LVII. fig. 6, 7. 



? ? Turho lunaris, Gmelin, Sj'st. Nat. p. 3587, from Chemn. Conch. Cab. vol. 

 ix. p. 128, pi. 113, f. 971 (broken?). 



This tiny shell is very minute, thin, and pellucid, and of 

 a horn colour. The surface of the whorls is quite smooth 

 and shining. The general shape is lanceolate and less than 

 one half of the length is occupied by the body-whorl, which 

 is not swollen out as in the last species, but gently tumid. 

 The spire is formed of five whorls that very gradually 

 decrease ; they are slightly tumid, and rather narrow. 

 The terminal whorl forms an obtuse apex. The mouth is 

 somewhat elliptical, and rather narrow ; it terminates below 

 in a short canal, which is slightly bent, but not mucro- 

 nated. 



VOL. ir. 3 D 



