NO. 1139. DEEP-lVATl-:n MOLLUSCA VERRILL JXD /, r>7/. 887 



to extend forward iu a point between the two sides of the cartilage. 

 There are no transverse cost;o or buttresses for strengthening the hiuge- 

 margin. 



Entire length, including epidermal lobes, 54 in in. ; entire height, oppo- 

 site the beaks, 22 mm.; height of the anterior third, 20 mm.; breadth, 

 in the middle, 12 mm. ; length of longest digitations, about 10 or 12 mm.; 

 length of the shell itself, 42 mm.; height at the middle, 15 inm.; length 

 from beak to anterior end, 30 mm.; to posterior end, 14 mm. Frag- 

 ments of specimens more than twice as large as the one measured have 

 been taken. In one of these the height of the shell without the epider- 

 mis is 25 mm. 



Two good specimens and some fragments, at four stations, between 

 N. lat. 39 58' 30", W. long. 70 30', and N. lat. 37 24', W. long. 74^ 17', 

 in 300 to 1,000 fathoms, 1S80-1884. 



