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



their own length. The spiral lines are unequal in fineness, the 

 broader ones alternating with finer ones in which the dots are very 

 narrow; the intervals between the spiral lines are also variable in 

 breadth. None of the specimens appear to have a distinct epidermis. 



Length of shell to apex of one of the largest specimens, 35"'"' ; 

 breadth, 25"'"'; length of aperture, 37"""; greatest breadth of aper- 

 ture, 18"'"^. 



Off Martha's Vineyard, at stations 2052, in 1098 fathoms; 2074, in 

 1309 fathoms; 2076, in 906 fathoms; 2077, in 1255 fathoms; off 

 Delaware Ray, stations 2102, in 1209 fathoms; and 2103, in 1091 

 fathoms (No. 35,374). It was most common at station 2102, N. lat. 

 38° 44', W. long, 72° 38', in 1209 fathoms, where thirteen specimens 

 were taken, ten of them living (No. 35,641). 



This species bears some resemblance to S. piinctostriatics (Migh.) 

 H. and A. Ad., but is much thinner, with a far more delicate texture. 

 Its form is much shorter and more swollen in the middle, and the 

 spiral lines are less numerous, with wider intervals, and have the 

 punctations larger and not so close together, giving a much smoother 

 appearance to the surface, although the punctate character is quite 

 as evident. The aperture is also much broader, especially in its 

 anterior half, while the body-whorl projects into it much more 

 strongly. The inner lip is much thinner and shows only a slightly 

 thickened fold along the columella-margin. Posteriorly the shell is 

 not at all narrowed, but is evenly rounded instead of being pinched 

 up as in /iS. p^inctostriatvs. The posterior process of the outer lip is 

 more fiaring, and extends farther backward beyond the apex. The 

 apex of the shell is nearly plain and smooth, though sometimes 

 slightly indented, and does not have a thickened deposit of enamel 

 extending beyond the edge of the notch, as in the latter. 



Actaeon melampoides Ball. 



Bull. Mus. Comp. Zool., vol. ix, p. 95, 1881. 



Station 2115, off Cape Hatteras, in 843 fathoms, one speoinun (No. 

 35,565). 



The original specimens, described by Mr. Dall, were from the (iulf 

 of Mexico, in 310 fathoms, Blake Expedition. I have com])ared our 

 exam])le with Mr. Dall's specimens. 



