96 rEOCEEDLNGS OF THE MALACOLOGICAL SOCIETY. 



accrescentes, convexiusculi, anguste marginati ; apertura oblique 

 lunata ; peristoma tenue, margine colnmellari ad insertionem sinuatiin 

 retloxo. Diam. maj. 7, min. 6, alt. 5 mm. 



iZ«^».— South Celebes, at 2,000 feet. 



Smaller than M. consimilis, of a somewhat browner tint, with a 

 slightly more elevated spire, and smaller body-whorl. 



6. Xesta teochus (Miiller). 



i7-,,i._South Celebes, at 2,000 feet. 



The specimens from this locality belong to the form named by 

 Reeve Jlelix stdjjJuirea. The shell he figured is peculiar in having 

 no brown zone upon the base of the body-whorl, a feature occurring 

 in all the specimens in the present collection. On the other hand, 

 in the latter, the sutural band is only faintly continued upon the last 

 whorl, and in some it is entirely wanting. The largest specimen has 

 a diameter of 3 1 mm. 



7. Xesta dimidiata. PI. YII, Fig. 19. 



Testa orbicularis, perforata, solida, supra virens, hand nitens, infra 

 lacteo-alba, zona obscura nigrescente cincta, circa umbilicum nigro- 

 fusco tincta, hie illie irregulariter nigro-punctata ; anfractus 5-6, 

 convexiusculi, sutura alba nigro-marginata sejuncti, apicales Iseves, 

 nigrescentes, ultimus et penult, striis spiralibus confertis micro- 

 scopicis sculpti, lineis incrementi obliquis tcnuibus striati, ultimus 

 ad peripheriam rotundatus, infra concentrice plus minus minute 

 striatus, baud descendens ; apertura obliqua, late lunata, alba, zona 

 lata nigro-fusca infra medium baud ad marginem attingente picta ; 

 peristoma tenue, simplex, margine columellari prope insertionem, 

 leviter incrassato, reflexo, et subcontorto. Diam. maj. 33, min. 27, 

 alt. 20 mm. ; apertura 11 mm. alta, 16 lata. 



mb. —^oxith Celebes, 2,000-5,000 feet. 



Four specimens of this beautiful species were collected by Mr. 

 Everett. Three are coloured as described above ; but the fourth 

 has all the upper part of the spire black, excepting a white line at the 

 suture, the body- whorl, however, becoming normally greenish. 



8. Xesta Wallacei (Pfeiffer). 



^^J.— South Celebes, at 2,000 feet. 



Three varieties of this species were collected by Mr. Everett in 

 South Celebes, at an elevation of 2,000 feet, namely — (1) the typical 

 form as figured in the Conchylien-Cabinet {Helix), pi. clxiv, 

 figs. 13-15; (2) like the type, but darker above, livid purplish 

 towards the apex, and chestnut brown near the aperture, pale 

 beneath, with a brown stain around the umbilicus ; last whorl dotted 

 with black (dots very few on the under- surface) and encircled with 

 a dark-brown zone, sometimes bisected by a pale line ; (3) like 

 Pfeiti^er's var. ft, but having a white instead of a brown peripheral 

 band. Var. hicingulaia, Yon Martens, was not collected by Mr. 

 Everett. 



