SMITH : LAND-SHELLS FROM SOUTH CELEBES. 95 



A. Species Collected by Mr. Everett. 



1. Helicarion Wallacei. PL YII, Figs. 7-9. 



Testa tenuissima, pallide virescens, vitrea, polita, globosa, supra 

 depressa, infra minutissime perforata ; spira ad apicem vix elata ; 

 anfractus 3, supra convexiusculi, infra suturam concave marginuti, 

 at lineis incrementi liic illic subplicatis striati, ultimus intlatus ; 

 apertura inverse late auriformis ; peristoma marginibus conniventibus, 

 callo tenuissimo junctis, columcllari ad inscrtiouem anguste reflexo. 

 Diam. maj. 9, min. 7-5, alt. 6 mm. 

 ; ^aJ.— South Celebes, at 2,000 feet. 



An excessively thin, fragile species, with an obtuse spire and large 

 apical whorls. 



2. Helicarion Celebensis, Pfeiffer. 



iZ«^.— South Celebes, at 2,000 feet (Everett). 



A single specimen only, younger and smaller than the type, 

 agreeing precisely in form, but without the pale Hue at the suture 

 and not whitish at the base. Notwithstanding these differences, due 

 possibly to disparity in age, I have no doubt respecting the iden- 

 tification of the specimen in question. 



3. Macrochlamys indifferens. pi. VII, Eigs. 10-12. 



Testa orbicularis, angustissime perforata, fusco-cornea, polita, striis 

 incrementi levibus sculpti ; spira depresse conica ; anfractus 5, 

 lente accrescentes, leviter convexiusculi, anguste marginati ; apei'tura 

 oblique lunata ; peristoma tenue, margine columellari ad insertionem 

 pallido, incrassato, sed vix reflexo. Diam. maj. 8, min. 7, alt. 4 mm. 



^rt^.— South Celebes, at 2,000 feet. 



This species presents no special distinguishing features. The 

 generic position of this and other similar forms is difficult to 

 deteiTuine on the shell characters only. 



4. Microcystina consimilis. pi. VII, Eigs. 13-15. 



Testa depresse globosa, perforata, tenuis, pellucida, cornea, nitida, 

 lineis incrementi prope suturam subplicatis striata; anfractus 4-5, 

 celeriter crescentes, convexiusculi, iSiiperne concave marginati, ultimus 

 circa umbilicum interdum pallidus ; apertura oblique limata ; peri- 

 stoma tenue, margine columcllari albo, incrassato, supra umbilicum 

 sinuatira reflexo. Diam. maj. 11, min. 9, alt. 8 mm. 



Ilah. — i^outh Celebes, at 2,000 feet. 



Very like Helicarion Celehensis, Pfr., but differing in the character 

 of the columellar lip, etc. The margination of the whorls beneath 

 the suture is palish in some specimens. 



5. MiCROCl'STINA CONSOKS. PI. VII, Eigs. 16-18. 



Testa depresse globosa, tenuis, pellucida, fusco-cornea, losvigata, 

 lineis incrementi substriata, anguste umbilicata; anfractus 4i, sableute 



