446 PROCEEDINGS OP THE ACADEMY OF [1896. 



Bulimulus (Naesiotus) Habeli Stearns, 



Bidimulus {Pleuropyrgus) Habeli (Stearns MS.) Dall, Nautilus, Jan., 1892, 

 p. 99; Stearns, Nautilus, Dec, 1892, p. 86; Stearns, Proc. U. S. Nat. Mus., 

 xvi, pp. 382, 428, 1893. 



Bulimulus {Pleuropyrgus) /frf^raReibisch, Isis, (Oct.) 1892, p. 14, t. ii, fig. 

 3. 



Chatham Island, Habel, U. S. Fish Commission Steamer Alba- 

 tross and Dr. G. Baur, under stones near the shore, at the southwest 

 end of the island (typical form) ; Chatham Island, under stones and 

 on mossy rocks in the moist region, 900-2,000 feet above the sea, 

 "Wolf fide Reibisch {B. terehra). 



The specimen of B. terehra submitted by Herr Reibisch is slightly 

 larger, more dull colored and has a more evident umbilicus than the 

 typical specimens of Habeli which were obtained in a more unfavor- 

 able station, but the differences do not appear to be sufficient to be 

 worthy of a specific name, at least judging from the material I have 

 been able to study. No specimens of B. Habeli contaiuing the soft 

 parts have been received by me. The nepionic whorls are usually 

 decorticated and smooth, but when perfect show extremely fine 

 transverse ribbing. In the single specimen I have seen of the 

 variety terehra Reibisch the nepionic ribbing is coarser and more 

 evident. 



Pupa (Leucooheila !) Wolfii -Miller. Plate XVII, fig. 14. 



Pupa {Leucochila') Wolfii Miller, Reibisch, Isis, 1892, pt. 3, p. 15, t. ii, fig. 

 11. 



Ptipa {Leucochila') munita Reibisch, Isis, 1892, pt. 3, p. 15, t. ii, fig 9. 



? Pupa Eyriesii Drouet, Essai Moll. Terr. Guyane Franfaise, p. 71, pi. ii, fig. 

 16-17, 1859. 



Guayaquil, Ecuador, Wolf, fide Reibisch, op. cit. ; Albemarle 

 Island, on bushes near the shore. Wolf; on bones of dead tortoises, 

 Albemarle Island, Baur ; on the trunks of trees, Ilet-la-Mer, French 

 Guiana, Drouet. 



Several specimens of a minute Pwpa were obtained by Dr. Baur 

 adhering to dry bones picked up on Albemarle Island, According 

 to their age these show the following denticles in the aperture : 1. 

 On the body is a deeply grooved prominent tooth which in some 

 specimens is so far bifid as to appear like two slender teeth close to 

 each other, this is present on all the specimens ; 2. On the pillar, 

 well up near the body a small but very distinct horizontal lamella, 

 present in all specimens, but less developed in the younger ones ; 3. 

 Well within the lip is a series of small short denticles side by side, 

 longer in the direction of the whorls ; the first almost vertically be- 



