A. E. Verrill — Mollusca of the Nexo England Coast. 183 



This species- is easily distinguished by the jjeciiliar, elegant, spiral 

 microscopic lines, combined with the numerous spiral cinguli, visible 

 under a lens. There are no regular transverse ribs. 



Cingula apicina Verriii, sp. nov. 



Plate XXXII, figure 8. 



Shell conical, rapidly tapering to a very acute, sub-stiliform tip. 

 Nuclear whorls about four, smooth, dark brown ; the first is minute 

 and obliquely incurved ; the others very gradually increase, so as to 

 form a slender, somewhat stiliform nucleus, below which the normal 

 whorls increase much more rapidly. The normal whorls, of which 

 there are five, are very convex, evenly rounded, with a strongly 

 impressed suture, and everywhere crossed by fine, distinct, obliquely 

 raised, slightly flexuous lines of growth, some of which often appear 

 as distinct riblets, but without any distinct spiral lines. Aperture 

 nearly round, faintly angulated, a little in advance of the middle, by 

 a very slight and rather indistinct ridge, which surrounds the base 

 near the periphery. ' Columella-margin thin and somewhat reiiexed 

 over the umbilical depression ; inner lip short, formed by a thin 

 layer of enamel closely adherent to the body-whorl. Umbilicus 

 small and deep, partially concealed in a front view by the reflexed 

 edge of the lip, but distinctly visible in an end view. Epidermis 

 thin, closely adiierent, light horn-color, Avithout much luster, and 

 having a distinctly fibroiis appearance, under a lens. Shell grayish 

 white. Operculum nearly round, very thin, pale horn-color, with 

 very indistinct subspiral lines of growth. 



Length, 7'6™'"; breadth, 5'"™; length of body-whorl and canal, 

 5"'"'; length of aperture, 2-5'^"' ; its breadth, 2""". 



Station 2041, N. lat. 39° 22' 50", W. long. 68° 25', in 1608 fathoms. 

 Steamer. Albatross, 18.83 (No. 38,070). 



A single living specimen of this species was obtained. The 

 animal, in alcohol, has rather i-hort, stout, tapering tentacles, and is 

 apparently without eyes. Its generic affinities are doubtful. It has 

 some resemblance in sculpture and appearance to Lacuna glacialis, 

 but the latter is a stouter shell, with a less distinct umbilicus, and 

 without the j)eculiar stiliform nucleus seen in the present species. 

 In the last character it approaches Litiopa., but it has not the notch, 

 or rudiraentarv canal, characteristic of that sceiius. 



