448 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. f 1685. 



ovate area, near the middle of which the large cloacal-opening is sit- 

 uated. This opening is bilabiate, each lip bordered with one or two 

 rows of elongated, rough ijapillae, like those of the lateral carinse. The 

 oral opening is very large, in expansion nearly round, the proximal side 

 sometimes bending inward, leaving a sinus on either side of it; the 

 margin is thickened and revolute, bordered by a row of small, tapering 

 papillae. The whole surface of the test is covered by minute, granule- 

 like or conical elevations, which are rather close over the dorsal parts, 

 less numerous beneath. Color, dull yellowish gray, the stem dark 

 brown. 



Length of the stem of one specimen, 155™"" ; its diameter near the 

 base, 2™™ ; length of body, TO™'" ; greatest diameter, 40™"* ; diameter 

 of mouth, 8°"™. 



Station 2041, in 1,608 fathoms, 1883. 



