SPIROSTEMMA. 291 



spire, 3% mm.; aperture, 3 mm. high, 2 1 / 4 mm. wide." 

 (Vend.) 



Jamaica: Upper Leighton, near Spring Garden Estate, in 

 the St. George District of Portland parish in the mountains 

 (Mr. Bancroft) ; Swift River, near Hope Bay, Portland 

 (Win. J. Fox). 



Cylindrella (Anoma) inusitata VENDRYES. Nautilus xv, 

 p. 1, pi. 1, f. 1, 2 (May, 1901). C. rubra C.B.Ad., JOHNSON, 

 Nautilus v, 1891, p. 34; PILS. & VAN., Proc. A. N. S. Phila. 

 1898, p. 275, pi. 18, f. 12 (axis). 



"This species is remarkable for its produced and detached 

 aperture, placing it in the same group to which princeps 

 belongs. ' ' 



Specimens from Swift River, Portland collected by W. J. 

 Fox and C. W. Johnson in 1891 agree fairly with Vendryes' 

 description. They vary from reddish-brown to pale corneous- 

 brown, and one is white. The upper third or half tapers 

 slowly, and the greatest diameter is at or sometimes below 

 the middle. The axis is only slightly sinuous, and no false 

 umbilicus is visible in the aperture from below. The aperture 

 is slightly angular below, and the peristome is white and free. 

 Specimens measure 17 to 18 x 3 to 3.1 mm., with 11 to ll 1 /^ 

 whorls. The apical whorls are delicately ribbed (Vol. XVI, 

 pi. 11, fig. 89). 



7. S. IPSWICHENSIS n. sp. PL 35, figs, 52, 53, 54. 



Shell slender, pillar-shaped, the upper third or fourth 

 slowly tapering, thin, red-brown or pinkish. Surface hardly 

 shining, finely and closely striate. Whorls 11 to 12, hardly 

 convex, the last one tapering, very strongly carinate be- 

 neath, concave above the keel; produced forward. Aperture 

 oblique, subcircular, but a trifle longer than wide, peristome 

 white or pale brownish, continuous and free, well reflexed and 

 somewhat thickened, evenly arcuate throughout. Internal 

 :is rather strongly sinuous throughout, reinforced by an ad- 

 vent basal lamella within the front and left side of the last 

 lorl. 



Length 15.7, diam. 2.7 mm. ; whorls 11%. 

 Length 15, diam. 2.3 mm.; whorls 



