344 pno('EEDix<is of the national museum. 



The speciiiicn {k'scrilxKl and liuurod ])olono-s to the Psetel collection, 

 and conies from Japan. It has eiuht post-nuclear whorls, and measures: 

 long. 8.3 nmi.: diam. 1. mm. 



TURBONILLA (CINGULINA) CINGULATA Dunker. 



Plate XXI, li^'. 1. 



Tiirbonilla ringulnta Dunker, Mai. Bhitt., VI, 1<S60, p. 239; also Moll. Jap., p. !<>, 

 1861, pi. vni, fifj. 13; not Motioj>ti/i/jita or OkcHIk ciugnkiUt A. Adams. 



Siiell elongate-conic, slender, milk-white. Nuclear whorls three, 

 large, helicoid, rather elevated, smooth, having their axis at a right 

 angle to the axis of the later whorls, and about one-fourth immersed 

 in the first of them. Post-nuclear whorls ornamented between the 

 sutures by three strong, moderately rounded, raised spiral keels, which 

 ai-e separated by channels of about the same width; the first keel is at 

 the summit of the whorl; these raised keels are marked axially b}' 

 ii-reguiar lines of growth while the depressed channels are crossed by 

 iuun(u-ous more or less equally developed and equally spaced slender 

 axial bands. A trace of the first keel anterior to the periphery may 

 ])e seen aV)ove the suture in several of the last whorls. The peripher}'' 

 of the last whorl is marked by the anterior i^&gQ of the third channel, 

 the next keel anterior to this is like those between the sutures, the 

 remainder of the short base is marked by five less strougly developed 

 keels and channels, the space about the umbilical region having faint, 

 wavy spiral striations. Aperture moderately large, suboval, posterior 

 angle obtuse, slightly efiuse at the junction of the outer lip and col- 

 umella; outer lip arcuate, columella short, slender, curved, with a 

 small and very ()l)lique fold near its insertion which scarcely shows in 

 the aperture; parietal wall covered l)y a thin callus. 



The above description was made from Dunker's type specimen, the 

 nucleus was described from a specimen belonging to the t3'pe lot which 

 comes from Nagasaki, Japan. The type has twelve post-miclear 

 whorls (is minus the nucleus), and measures: long. 7.4 mm. ; diam. 2. 1 mm. 



The type lot contains four specimens. Another lot from Hilg(Mi- 

 dorf comes from Enosima, Japan, and oiu^ belonging to tiie Pa'tel col- 

 lection is labeled simply ,Iapan. 



Duidver states that the last whorl has eight lirations. He appears 

 to have overlooked the ))asal one. which is not sharply defined in the 

 sotnewhat worn type. 



TURBONILLA (CINGULINA) CINGULATA LATICINGULA, new sub- 

 species. 



riate XXI, iijr. 3. 



Shell similar to T. {C.) ctngxlaUi, n little more slender, wnth the 

 nuclear whorls about one-third buried; the small axial bars are a little 

 more pronountcd and only four basal keels are present, the first one 



