210 HELIX-CAMJENA. 



periphery bordered above and below by narrower chestnut-brown 

 bands, the upper one of which is visible above the suture on the 

 spire- whorls ; and with a broad white zone surrounding the brown 

 umbilicus. Surface delicately striate obliquely. Spire low, apex 

 obtuse, suture slightly impressed. Whorls 4J, slightly convex, rap- 

 idly widening, the last deflexed in front. Aperture very oblique, 

 elliptical-truncate, brownish and showing the band within; peri- 

 stome thin, narrowly reflexed all around, dark brown except at the 

 terminations of the white bands, which continue to the edge of the 

 reflexed lip ; columellar termination reflexed over the narrow but 

 profound umbilicus. 



Alt. 19, greater diam. 27!, lesser 24 mill. 



Busuanga, island of Busuanga, Philippines. 



H. palumba Souv., Journal de Conchyl. 1858, p. 369 ; 1862, t. 

 10, f. 5. HIDALGO, Journ. de Conchyl. 1889, p. 297, t. 14, f. 1, 

 (1890). 



I agree with Hidalgo in separating this shell from If. saulice Pfr. 

 It is a very thin, light species, smoother than any of the forms of 

 palawaniea, and it always has white spots on the lip at the termina- 

 tions of the white bands. The locality given above is that of the 

 following color-variety, described by Hidalgo. 



VAR. ft. Shell larger, more solid, transverse strise almost lack- 

 ing ; chestnut, with peripheral and basal white zones (pi. 41, fig. 15). 



H. EGREGIA Deshayes. PI. 37, figs. 43, 44. 



Shell globose, a little depressed, white, transversely 2-banded with 

 brown ; spire conic-depressed, apex obtuse ; whorls 4, a little con- 

 vex, slowly increasing, the last depressed, convex, base imperforate, 

 at the periphery very obtusely angulated ; aperture lunate-circular ; 

 peristome reflexed, thickened, margined outside with brown ; colu- 

 mella dilated, depressed, calloused ; left margin thickened, short. 

 (DA.) Alt. 28, diam. 38 mill. 



Habitat unknown. 



H. egregia DH. in Fer. Hist., i, p. 302, t. 102, f. 17, 18. 

 A species not noticed by recent authors, evidently grouping with 

 H. monochroa. 



H. AVUS Pfeiffer. PI. 27, figs. 15, 16, 17. 



Shell umbilicated, depressed, solid, obliquely striatulate, some- 

 what shining, pale fulvous ; spire short, convex ; whorls 4, scarcely 

 convex, sensibly increasing, the last carinated, convex above and 



