BULIMULUS-NAESIOTUS. 121 



turatus REEVE, Conch. Icon., pi. xx, fig. 125, 1848. Bulimulus 

 (Omphalostyla) sculpturatus H. & A. ADS., Gen. Rec. Moll., ii, p. 

 161, 1855. Bulimulus (Nesiotes) sculpturatus MARTENS, in Albers, 

 Heliceen, Ed. ii, p. 220, 1860. Bulimulu* (Ncesiotus) sculpturatus 

 PFR., Norn. Hel. Viv., p. 254, 1881. REIBISCH, Isis, p. 22, 1892. 

 STEARNS, Proc. U. S. Nat. Mus., xvi, p. 427, 1893. DALL, Proc. 



A. N. S. Phila., 1896, p. 443. 



" The particular island to which this species, collected by Darwin, 

 belongs, is not known. I have not been able to obtain a specimen 

 for examination. Reeve's figure recalls a specimen of B. Simrothi 

 in which the lip has not yet been developed fully, but if his meas- 

 urement is correct, the shell should be a little larger as well as more 

 slender than in B. Simrothi." (Dall). 



B. RUGIFERUS (Sowerby). PI. 24, fig. 37. 



Shell perforate, turrited, long and slender, dull brown ; surface 

 lusterless. Whorls 7 2-9, the apex obtuse, earlier If whorls densely 

 and finely longitudinally costulate, following two whorls with low 

 wrinkles and fine spiral stride, the remaining whorls very coarsely 

 corrugated, most of the wrinkles interrupted, branching or anasto- 

 mosing, the whole covered with sharp, thread-like spiral stride. 



Aperture irregularly oval, brown inside; peristome thin, simple, 

 the columellar margin dilated ; columella weakly truncated obliquely 

 at base. 



Alt. 10'5, diam. 3'7, length of aperture 3 mill. 



Alt. 11, diam. 4, length of aperture 3'2 mill. 



Alt. 12'5, diam. 3'75, length of aperture 3'5 mill. 



James Island (Cuming). 



Bulimus rugiferus SBY., P. Z. S., 1833, p. 36 (James Id.) ; Conch. 

 111., fig. 40, 1833. Cochlicellus rugifer BECK, Index, p. 63, no. 11, 

 1838. Bulimus rugiferus DESK, in Lam. An. s. Vert., ed. ii, vol. 

 viii, p. 276, 1838. PFR., Mon. Hel. Viv., ii, p. 115, 1848. REEVE, 

 Conch. Icon., xx, fig, 118, 1848. Bulimulus (Omphalostyla) rugi- 

 ferus H. &. A. AD., Gen. Rec. Moll., ii. p. 161, 1855. Bulimulus 

 (Nesiotes) rugiferus MARTENS, in Albers, ed. ii, p. 220, 1860. 

 Bulimulus (Ncesiotus) rugiferus PFR., Nom. Hel. Viv, p. 254, 1881. 

 REIBISCH, Isis, 1892, p. 21. STEARNS, Proc. U. S. Nat. Mus., xvi, 

 p. 427, 1893. DALL, Proc. Acad. N. S. Phila., 1896, p. 443. 



This species is more slender than B. nesioticus, less so than B. 

 reibischi, and with coarser sculpture. 



