182 A. E. Verrill — MoUusca of the New England Coast. 



entirely destitute of the transverse ribs. The present species also 

 resembles C. abyssicola of northern Europe, as figured by G. O. 

 Sars, but tlie latter has a stronger sculpture, with fewer revolving 

 lines, and the outer lip has a distinct varix. C. Jeffreysi diifers in 

 nearly the same manner. 



Cingula leptalea Vemii, sp. nov. 



Plate XXXII, figure 10. 



Shell of moderate size, thin, slender, composed of four very con- 

 vex whorls sepai'ated by a deep suture, and with small spiral cinguli 

 and microscopic, wavy, revolving lines. The apical whorl is rather 

 large, smooth, regularly coiled, forming a small rounded apex. The 

 lower whorls are covered with small, rounded cinguli, of which there 

 are from eight to ten above the suture, on the penultimate whorl, 

 those just below the suture becoming indistinct ; on the body-whorl 

 there are about twenty ; they are separated by concave interspaces 

 of somewhat greater width, the spaces becoming greater on the 

 upper part of the whorl. Both the interspaces and cinguli are cov- 

 ered by very delicate, microscopic, raised lines, which are bent into 

 minute, close waves, giving the whole surface a microscopically ver- 

 miculated appearance ; of these wavy lines there are mostly from 

 four to six in the interspaces and four or five on the cinguli. The 

 whorls are crossed by raised lines of growth, which in some places 

 are pretty regular and nearly as prominent as the cinguli, which they 

 cross so as to produce a finely reticulated sculpture ; this is seen 

 most frequently near the shoulder, but is not constant, often fading- 

 out both near the suture and anteriorly. There are also more or less 

 distinct microscopic lines of growth which cross the minute revolv- 

 ing lines, but are less distinct than the latter. The aperture is rather 

 large, regularly ovate; the outer lip is a little thickened, but without 

 a varix; it is regularly arched exteriorly and a little etfuse in front; 

 the inner lip is well developed and continuous, though closely 

 adherent to the body-whorl. There is no umbilicus, but a small 

 chink is formed by the eversion of the columella-lip. Color, in alco- 

 hol, pale yellowish white willi a tinge of greenish, and translucent ; 

 when dry, white and opa<|ue. 



Length, 3'"'"; breadth, 1-8'"'"; length of aperture, J""". 



Station 2072, N. lat. 41° 53', W. long. 65° 35', in 858 fathoms (No. 

 38,060). One living specimen. 



