6 PROCEEDINGS OF THE NATIONAL MUSEUM. ^ol. 56. 



Range. — Off Monterey Bay, California ; in 871 fathoms, sand, bot- 

 tom temperature about 38° F. U. S. Bureau of Fisheries steamer 

 A Ihatross. 



LEUCOSYRINX KINCAIDI, new species. 



Plate 3, fig. 8. 



Sliell of moderate size, fusiform, with an acute spire and elongated 

 canal, waxen white, nucleus of two smooth bulbous whorls with five 

 subsequent whorls; axial sculpture only of faint incremental lines; 

 spiral sculpture including a very prominent thin sharp peripheral 

 keel and fine spiral striae with wider interspaces, over most of the 

 surface; the interspaces become more rounded and coarser on the 

 base; tlie entire space between the keel and the preceding suture may 

 be said to form the anal fasciole, the wide arcuate sulcus being 

 situated a little way in front of the suture ; the base is neatly rounded 

 and contracted at the beginning of the canal ; outer lip thin, sharp, 

 much produced in front, inner lip slightly erased; pillar obliquely 

 attenuated in front, gyrate, and with a minutely pervious axis; canal 

 narrow, slender; operculum yellowish, ovate, with an apical nucleus. 

 Height of shell, 29; of last whorl, 21.5; diameter, 13 mm. Cat. 

 No. 151581, U.S.N.M. 



Range. — Shelikoff Strait, north of Kodiak Island, Alaska ; Prof. 

 Trevor Kincaid. 



This very distinct species is extremely thin and fragile, indicating 

 a"deep water habit. 



CYMATOSYRINX HESPERA, new species. 



Plate 20, fig. 2. 



Shell small, white, polished, acute, with a small, smooth, glassy, 

 inflated nucleus of one and a half whorls, with seven and a half subse- 

 quent whorls ; suture appressed, obscure ; anal fasciole immediately in 

 front of it, constricted; spiral sculpture none; axial sculpture of (on 

 the penultimate whorl 11) more or less sigmoid strong rounded ribs 

 crossing the whole whorl, feebler on the base and fasciole, nearly con- 

 tinuous up the spire and with subequal interspaces; incremental lines 

 rather regularly spaced and evident; aperture narrow with a vari- 

 cosity behind the thin produced outer lip, anal sulcus conspicuous, 

 rounded, with a marked subsutural callus; inner lip and pillar with 

 a thin callus with a raised edge; canal distinct, constricted, deep, 

 short, recurved, forming a keeled siphonal fasciole. Height of shell, 

 9 ; of last whorl, 4.5 ; diameter, 3.5 mm. Cat. No. 122799 U.S.N.M. 



Range. — Station 2805, in Panama Bay. in 51 fathoms muddy bot- 

 tom ; U. S. Bureau of Fisheries. 



CYMATOSYRINX ELISSA. new species?. 



Plate 20. fig. 1. 

 A possible variety of the above, smaller, with a larger pinkish 

 nucleus, eight or nine straighter ribs, not continuous up the spire, and 



