NO. 2288. 2fEW M0LLUSK8 OF THE FAMILY TURRIT I DAE— BALL. 71 



prominently arcuately produced; inner lip erased, pillar short, at- 

 tenuated in front, gyrate ; axis pervious ; canal narrow, short, slightly 

 recurved. Height of shell, 7.7 ; of last whorl, 6 ; diameter, 3.5 mm. 

 Cat. No. 207587, U.S.N.M. 



i?an^e.— Station 2792, off Manta, Ecuador, in 401 fathoms, mud, 

 bottom temperature 42.9° ; U. S. Bureau of Fisheries. 



MANGILIA HAMATA Carpenter. 



Mangelia hamata Carpentee, Ann. Mag. Nat. Hist., ser. 3, vol. 15, p. 399, 

 May, 1865. 



Carpenter's type specimen is apparently a fossil and resembles the 

 fossils from the Santa Barbara Pleistocene, where Col. E. Jewett 

 also collected. The rather deep anal sulcus and thickened lip remind 

 one of Cytharella. 



Range.— '^ Panama," Colonel Jewett. Cat. No. 15951, U.S.N.M. 



MANGIUA CESTA, new species. 



Plate 21, fig. 7. 



Shell small, whitish, polished, with (on the last whorl six or seven) 

 widely spaced narrow brown spiral lines; whorls six without the 

 (lost) nucleus; suture distinct, axial sculpture of ten rounded ribs 

 extending across the whorl with subequal or wider interspaces; the 

 ribs are not shouldered and start from the suture which they un- 

 dulate; spiral sculpture of incised lines in the interspaces between 

 the ribs, the brown color is situated in these grooves of which there 

 are six or more on the last whorl, rather widely spaced; aperture 

 simple, anal sulcus inconspicuous, canal very short and wide. Height 

 of shell, 7; of last whorl, 4; diameter, 3 mm. Cat. No. 209040, 

 U.S.N.M. 



Range. — San Pedro, California, Mrs. Blood. 



This shell resembles Cytharella^ but lacks the peculiar spiral sculp- 

 ture and shouldered whorls. 



MANGILIA NEWCOMBEI, new species. 



Plate 21, fig. 4. 



Shell small, brownish, with a tendency to banding, paler at the 

 shoulder and on the base, with six whorls, including a small, smooth 

 nuclear whorl ; suture distinct, slightly appressed, with no fasciolar 

 constriction; spiral sculpture of fine flattish threads separated by 

 narrow striae very minutely reticulated by the incremental lines and 

 most conspicuous in the intervals between the ribs, practically cover- 

 ing the whole surface of the shell; axial sculpture, beside almost 

 microscopic lines of growth, of (on the last whorl 14) short rounded 

 ribs, slightly angulated at the shoulder and extending from the 

 suture to the canal with subequal interspaces; anal sulcus shallow, 

 aperture narrow, simple, inner lip erased, canal short, straight. 



