116 BULIMULUS-NAESIOTUS. 



Aperture oblique, pentagonal, three-toothed ; the terminations of 

 the thick lip connected by a strong white callus ; outer lip sinuous* 

 forming an angle with the columellar lip ; columellar tooth at the 

 end of the fold ; parietal tooth deeper within, the third tooth at the 

 end of the peripheral furrow on the outer lip. Alt. 13, diam. 8, 

 length of aperture 6 mill. (Reibisch). 



Indefatigable Island (Wolf, fide Reibisch). 



Bulimulus (Ncesiotus) Wolfi REIBISCH, Isis, 1892, p. 22, t. 2, figs. 1 

 a-b. STEARNS, op. cit., pp. 414,427, 1893. DALL,Proc. A. N.S., 

 Phila., 1896, p. 439. 



"A specimen of this species kindly forwarded for examination by 

 Herr Reibisch is clearly distinct from anything I have seen. It re- 

 sembles B. Simrothi Reib., but is more robust, the surface of the 

 upper whorls smoother and more regular in sculpture, the pillar- 

 tooth is more prominent and stronger, the parietal tooth, apparently 

 normal, is not found in any Simrothi I have seen, the umbilicus is 

 larger than in the latter species. It resembles Reeve's figure of B. 

 Darwini somewhat, but the latter is 17 mill, long, while B. Wolfi 

 only reaches a length of 13'5 mill. (Z)a/f). 



B. UNIFASCIATUS (Sowerby). PI. 23, fig. 27; pi. 18, figs. 45, 46, 



47. 



Shell ovate-subpyramidal, thin, pellucid ; brown with one whitish 

 band. Whorls 5-6, veutricose, longitudinally striated, shining. 

 Aperture elliptical, acuminate above ; lip thin. Umbilicus small. 

 Alt. 0-8, diam. 0'45 inch (Sowl). 



James Island, under lava (Cumirig in Lea Collection) ; Chatham 

 Island, near the southwest end, at a height of about 1,600 feet (Dr. 

 Baur) ; Chatham Island (Kellett) ; Charles Island (Cuming and tL 

 M. S. Peterel). 



Bulinus unifasciatus SBY., P. Z. S., 1833, p. 37 (Charles Id.) ; 

 Conch. 111., fig. 55, 1833. Bulimus unifasciatus DESK, in Lam. An. 

 s.Vert., Ed. ii, vol. viii, p. 277, 1838. REEVE, Conch. Icon., xxiii, 

 fig. 149 (bad) 1848. PFR., Mon. Hel. Viv, II, p. 195, 1848. SMITH, 

 P. Z. S., 1877, p. 72. Bulimulus unifasciatus BECK, Index, p. 67, 

 1838. Bulimulus (Omphalostyla) unifasciatus H. & A. ADS., Gen. 

 Rec. Moll., II, p. 161, 1855. Bulimulus (Nesiotes) unifasciatus 

 MARTENS, in Albers, ed. ii, p. 220, 1860. Bulimulus (Ncesiotus) 

 unifasciatus PFR., Nom. Hel. Viv, p. 254, 1881 ; STEARNS, Proc.U. 

 S. Nat. Mus., XVI, p. 427, 1893 DALL, Proc. A. N. S. Phila., 



