164 A. K VerrW—Molhisca of the New EmfhunJ Coast. 



2038, N. latitude 38° 30' 30", W. longitude 69° 08' 25", in 2033 

 fathoms (No. 34,827); at station 2041, X. latitude 39° 22' 50", W. 

 longitude 68° 25', in 1608 fathoms, (No. 34,828) ; and station 2096, 

 N. latitude 39° 22' 20", W. longitude 70" 52' 20", in 1451 fathoms, 

 (No. 37,790.) Albatross, 1883. 



Named in commemoration of the steamer Albatross, {Diomedea). 



Pleurotomella Emertoni Verrill and Smith, sp. nov. 

 Plate XXXI, figuhe 6. 



Shell moderately large, stout, ovate, with the body-whorl very 

 large in proportion to the rest of the shell, and with some of the upper 

 whorls ribbed and nodulous, while the two lower whorls have only 

 spiral lines and lines of growth. Whorls about eight, three of which 

 form a chestnut-colored nucleus; about three whorls below the nucleus 

 are covered with prominent, longitudinal ribs, which form a well 

 marked shoulder and are crossed by several conspicuous, revolving 

 cinguli and grooves, which render them decidedly nodulous. The 

 subsutural band is broad, strongly concave, occupying nearly or quite 

 half the breadth of the upper whorls, and crossed by strongly reced- 

 ing, raised lines, parallel with the lines of grow^th of the sinus, but 

 without spiral lines. Body-whorl large and swollen, covered through- 

 out with very evident lines of growth, which are crossed, except on 

 the subsutui'al band, by conspicuous, revolving cinguli, which are 

 separated by spaces considerably exceeding their own breadth. Aper- 

 ture oblong-ovate, scarcely narrowed at the broad, short, open canal, 

 and with a very wide and rather deep posterior sinus. The outer lip 

 is thin and projects well forward beyond the sinus in a broadly 

 rounded curve. The columella is straight, with a sinuous inner mar- 

 gin ; the inner lip is marked by a narrow and thin enamel, which 

 extends but little forward in a sinuous outline. The color is yellow- 

 ish white under a thin, smooth, glossy, yellowish green epidermis. 



Length, 22™""; greatest breadth, 11"""; length of aperture, 14"""; 

 its breadth, 5™"". 



Station 2097, N. latitude 37° 56' 20", W. longitude 70° 57' 30", in 

 1917 fathoms (No. 35,232). Albatross, 1883. 



This species very closely resembles the following, in size and form. 

 It differs in having a wider canal, which is less differentiated from the 

 aperture, and in having the upper whorls strongly ribbed and nodu- 

 lous. They may possibly prove to be varieties of one species. 



