434 PROCEEDINGS OF THE ACADEMY OF [1896^ 



a smoother, smaller and more compact shell than rugulosus, and 

 shows a somewhat attenuated and dark colored apex, resembling that 

 of galapaganus Pfr. It is, perhaps, most closel}' related to B. ustu- 

 latus or B. calvus Sby., and a sufficient series might very likely con- 

 nect them. No living specimens of this species were collected,, 

 though there are some fresh shells. 



Bulimulus (Nsesiotus) eschariferus Sowerby. 



Btdinus eschariferus Sby., Conch. 111., figs. 85 (a, b), 1833. 



Bulimus eschariferus Pfr., Symb., II, p. 45 ; Mon. Hel. Viv., II, p. 115, 

 1848; Smith, P. Z. S.. 1877, p. 72. 



Bulimulus [Ncrsiotus) eschariferus Pfr., Nom. Hel. Viv., p.. 254, 1881 ; Kei- 

 bisch, Isis, 1892, p. 2. 



Bulimus rugulosus Reeve (not Sby.), Conch. Icon., pi. xx, fig. 123, 1848 

 (citation, diagnosis and figure refer to eschariferus). 



Bulimulus { Omphalostyla) eschariferus H. & A. Ad., Gen. Rec. Moll. II, p. 

 161, 1855. 



Bulirnulus eschariferus Ancey, Bull. Soc. Mai. France, IV, p. 295, 1887. 



B. eschariferus var. bizofialis Ancey, op. cit., p. 295, 1887. 



B. eschariferus var. subconoidalis Ancey, op. cit., p. 295, 1887. 



Bulimulus [Nasiotus) eschariferus Stearns, Proc. U. S. Nat. Mus., xvi, pp. 

 381,426,1898. 



Chatham Island, Darwin, Kellett, U. S. Fish Commission and 

 Dr. Baur, under stones near the shore at Wreck Bay and elsewhere ; 

 Charles Island, H. M. S. Peterel. 



Though this species, as usually received, is apparently smooth and 

 polished, it has minute more or less granular spirals, which it is 

 probable in the young state bear hairs. Among the living speci- 

 mens obtained at Chatham Island by the U. S. Fish Commission 

 were some rather smaller than the average and covered with a dense 

 brown epidermis, which bears numerous spiral lines more or less 

 minutely granulose, a small hair or process of the epidermis pro- 

 jecting from each granule, giving the shell a pilose appearance. 

 These specimens measure about 12 mm. in length and 5 mm. in 

 diameter, the color of the shell is browner than in the type, and, 

 when denuded of theperiostracum, the shell is seen to be marked by 

 numerous fine sharp, almost microscopic spirals. It may, perhaps, 

 form a variety pileatm, of the typical eschariferus. 



Bulimulus (Naesiotus) eschariferus var. ventrosus Reibisch. Plate XVII, figure 3. 



Bulimulus [A^LCsiotus) ventrosus Reibisch, Isis, 1892, p. 7, t. i, fig. 12 a-b. 



Barrington Island, common ; Wolf, fide Reibisch, also Dr. G. 

 Baur, who found it under stones near the shore. 



A specimen of this form was sent to Mr. Smith at the British 

 Museum, aud by him compared with the type of jB. eschariferics with 



