99 
versus oblique ventricosd, ampliter umbilicatd, anfractibus sep- 
tem ad octo, subrotundatis, levibus, sub lente striis obliquis 
elevatiusculis et spiralibus incisis minute decussatis, aperturd 
suborbiculari, columella labroque laté reflexis ; roseo-albicante, 
intus purpureo-rosed. 
Hab. Banks of the Aparimao, Alto Peru; W. Lobb. 
Distinguished by its very delicate purple-rose interior, the colour 
of which is seen through the substance of the shell. 
11. Butimus pecussatus. Bul. testd acuminato-oblongd, basi 
rotundatd, subcylindraced, compresse umbilicatd, anfractibus 
octo, leviter convexis, longitudinaliter corrugato-striatis, ad 
suturas subcrenulatis, columelld late reflexd, labro tenui, sim- 
plicit; pallide stramined, strigis brevibus rufo-fuscis longitudi- 
nalibus et obliquis fasciatim decussatis peculiariter notatd. 
Hab. Andes of Caxamarea, Peru; W. Lobb. 
Singularly characterized by the bands of short brown streaks, 
ranging obliquely in the direction opposed to the lines of growth. 
12. Buxtimus myristicus. Bul. testd acuminato-oblongd, basi 
suboblique rotundatd, compressé umbilicatd, anfractibus octo ad 
novem, planulato-conveuis, longitudinaliter striatis, infra suturas 
subcrenulatis, columellé late reflecd, labro simplici; albidd, 
vittis irregularibus castaneis et fuscescentibus confertim longi- 
tudinaliter pictd. 
Hab. Andes of Caxamarca, Peru; W. Lobb. 
This differs but little from the preceding species in form and detail 
of sculpture ; yet there is a marked distinction in the style of paint- 
ing. 
13. Butimus aLtTo-pERuviaNus. Bul. testd acuminato-ovatd, 
tenuiculd, ampliter compresse umbilicatd, aperturam versus ob- 
liqué ventricosd, inflatd, anfractibus septem, convexis, apicem 
versus creberrimé elevato-striatis, striis spiralibus incisis sub 
lente minuté decussatis, columelld late verticaliter reflexd, aper- 
turd oblique suborbiculari, labro effuso, non reflexo ; fulvescente 
lacted, apicem versus cerulescente, lineis castaneis subdistanti- 
bus irregulariter longitudinaliter notatd, maculis brevibus con- 
trarie obliquis bifasciatim pictd, macularum serie unicd infra 
suturas. 
Hab. Chachapoyas, Alto Peru; W. Lobb. 
The painting of this delicate and boldly convoluted shell is singu- 
larly characterized by two bands of short oblong chestnut spots or 
dashes, ranging obliquely in a direction contrary to that of the 
painted lines. 
14. Butimus atutaceus. Bul. testd oblongo-ovatd, umbilicaté, 
anfractibus septem, convewis, creberrime corrugato-striatis, aper- 
turd ovali, columelld reflexd, labro vix reflexo ; intense ustulato- 
castaned, zonuld unicd albd medio cingulatd, labro albo. 
Hab. Cuzco, Bolivia; W. Lobb. 
