436 PROCEEDINGS OF THE ACADEMY OF [1896. 



This species is in the British Museum, and appears in the litera- 

 ture, without a known habitat, but Herr Reibisch has courteously 

 forwarded two specimens for inspection, with the information that 

 they are from Chatham Island, Wolf, collector. 



The species resembles B. eschariferus in form, but it is of a deep, 

 reddish, instead of an olivaceous brown, and is more rudely striated. 

 One specimen shows traces of a narrow, pale band on the last whorl, 

 the other does not. The lip is dark colored. One of the specimens 

 has the base of the pillar very prominent, almost channelled, the 

 other is quite normal. The shell is midway between the typical 

 eschariferus and the var. ventrosus in size. The first reference of it 

 to B. rugalosus by Herr Reibisch was undoubtedly an error, which 

 that gentleman detected upon examining the specimens in the Brit- 

 ish Museum. 



Bulimulus (Naesiotus) jacobi Sowerby. 



Bidimns jacobi Sby., P. Z. S., 1833, p. 74 (James Id.) Conch. 111., p. 7, figs. 

 45, 45 (2 vars.) 1833. 



Bulimus jacobi Desh. in Lam. An. S. Vert., ed. ii, vol. viii, p. 281, 1838; 

 Pfr., Mon. Hel. viv., II, p. 98, 1848 (not of Keeve, Conch. Icon., pi. XXI, 

 fig. 135, 1848 = B. olla). 



Bidimintis jacobi Beck, Ind. Moll., p. 70, 1838. 



Bulimulus {Omphalostyla) jacobi H. & A. Ads., Gen. Eec Moll., ii. p. 161, 

 1855. 



Bulimus [N(Esioius) jacobi Albers, Helic, p. 162, 1850; Pfr., Vers., p. 160. 



Bulimulus [Nesiotes) jacobi Martens, in Albers, ed. ii, p. 221, 1860. 



Bulimulus {Altesiolus) jacobi Pfr., Nom. Hel. viv., p. 254, 1881. Reibisch. 

 Isis, 1892, p. 6. Not B. jacobi Stearns, Proc. U. S. Nat. Mus., XVI, p. 381, 

 1893. 



Bulimulus {NcBsiotus) pallidus Eeibisch. Isis, 1892, p. 6, t. i, fig. 9. 



Bulimulus [Ncesiotus) acutus Reib., op. cit., p. 8, t. i, fig. 13, 1892. 



James Island, Cuming ; Charles Island, Cuming; typical, in U. 

 S. Nat. Mus., from original specimens received by Dr. Lea; 1,600 

 ft. near Wreck Bay, Chatham Island, on the under side of leaves of 

 plants (var. pallidus'), and on East Albemarle Island, Dr. Baur ; 

 Albemarle Island, 200-800 ft. on bushes and stones. Wolf, fide 

 Reibisch (var. pallidus) ; Chatham Island, 900-2,000 ft., in damp 

 places and on the trunks of trees (var. acutus) Wolf 



The variety pallidus differs from the typical form in being slightly 

 smaller and more slender without the wrinkles, and it is probable 

 that a large series would show no dividing line between the variety 

 and the type. 



The variety acutus differs from pallidus in the almost entire ab- 

 sence of the spiral granulated sculpture, leaving much of the surface 

 polished and smooth, except for incremental lines. Reibisch's figure 



