70 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



short, wide, slightly recurved. Height of shell, 10,5 ; of last whorl, 

 6 ; diameter, 4 mm. Cat No. 211326, U.S.N.M. 



Range. — Station 2902, off Santa Rosa Island, California, in 53 

 fathoms sandy mud, temperature 45° F. U. S. Bureau of Fisheries. 



The specimens were all dead shells and the color when fresh is 

 therefore doubtful. 



MANGILIA HERMIONE, new species. 



Plate 19, fig. G. 



Shell small, white, decollate, but originally of five or more whorls 

 exclusive of the nucleus; first two remaining intact whorls (the 

 first is eroded) axial] y sculptured with about 20 close-set obliquely 

 protractive rounded ribs cut by sharp grooves which make of the 

 interspaces rounded nodules, the second row from the preceding 

 suture being more prominent and forming a shoulder to the whorl; 

 there are five of these rows on the spire, and the ribs they represent 

 extend from suture to suture; on the later whorls they are less 

 prominent, and on the last are obsolete except at the shoulder which 

 is feeble; other spiral sculpture on the last whorl is of fine equal 

 threads with narrower interspaces, extending from the shoulder to 

 the canal ; suture distinct, not appressed, whorls well rounded ; aper- 

 ture rather narrow, anal sulcus wide and deep, its deepest part at 

 the shoulder, with no subsutural callus ; outer lip thin, sharp, promi- 

 nently arcuately produced ; inner lip erased, pillar short, gyrate, axis 

 not pervious ; canal distinct, rather long and wide. Height of three 

 intact whorls, 8; of last whorl, 6.5; diameter at apex, 1.6; of last 

 whorl, 4 mm. Cat. No. 96488, U.S.N.M. 



Range. — Station 2807, near Galapagos Islands, in 812 fathoms, 

 ooze, bottom temperature 38.4° F. U. S. Bureau of Fisheries. 



MANGILIA LAODICE, new speciea. 



Plate 21, fig. 8. 



Shell small, thin, white, with six well-rounded whorls exclusive 

 of the (lost) nucleus, suture appressed, distinct, undulated by the 

 sculpture; spiral sculpture variable sometimes with well marked 

 threads (six on the last whorl) and a finer intercalary thread in the 

 rather wide interspaces, and sometimes with the spirals obsolete 

 or absent ; when present the suture may have a thickened edge with 

 one thread on the preceding whorl immediately behind it, or it 

 may be quite simple; axial sculpture of (on the penultimate whorl 

 about a dozen) short, subnodulous, slightly oblique ribs which do 

 not cross the anal fasciole and become obsolete on the base, sepa- 

 rated by narrower interspaces; anal fasciole slightly excavated, 

 smooth except for incremental arcuate lines close to the suture; 

 aperture narrow, anal sulcus wide and deep; outer lip thin, sharp, 



