93 
rate castanea; spira breviter conoidea, obtusula; sutura vix 
impressa ; anfr. 43 planiusculis, sensim accrescentibus, ultimo 
acute carinato, antice subito perdeflexo, circa umbilicum medio- 
crem subinflato, antice profunde et late scrobiculato ; apertura 
subhorizontali, piriformi-elliptica, lamella parietali longa, pa- 
rum flecuosa, sublibera, angustata; perist. continuo, albo, un- 
dique soluto, margine supero subexpanso, basali medio dente 
conico munito, tum descendente et dentibus 2 divergentibus, basi 
lato junctis instructo. 
Diam. maj. 24, min. 22, alt. 24 mill. 
B. Minor, fusco-cornea, umbilico paulo angustiore. 
Hab. Banks of the river Solimoes, Brazils (Mr. Yates). 
Plate XXXI, fig. 13, 14. 
11. BuLtimus HOLOLEUCUs, Pfr. B. festa imperforata, conico- 
ovata, tenuiuscula, striatula, nitida, subdiaphana, alba ; spira 
convexiusculo-conica, apice obtusa ; sutura anguste marginata ; 
anfr. 5 convexiusculis, ultimo subrotundato ; columella striata, 
vie obliqua, callosa; apertura fere diagonali, truncato-ovali, 
intus concolore; perist. breviter expanso, margine columellari 
dilatato, adnato, cum basali angulum distinctum Jormante. 
Long. 32, diam. 23 mill. 
Hab. Philippine Islands. 
12. Buximus yatest, Pfr. B. testa imperforata, fusiformi-ob- 
longa, solida, levigata, sub epidermide non nitente fusco-olivacea, 
fasciis nigris, maculis sagitteformibus luteis interruptis, picta; 
spira elongato-conica, obtusa ; sutura leviter marginata; anfr. 
8 convextusculis, ultimo 2 longitudinis vix superante, basi atte- 
nuato ; columella callosa, superne valde plicata ; apertura sub- 
vertical, elliptico-oblonga, basi subangulata, intus ceruleo-al- 
bida; perist. incrassato, breviter expanso, marginibus callo 
sordide carneo junctis. 
Long. 82, diam. 32 mill. 
Hab. Meobamba, Eastern Peru (Mr. Yates). Pl. XXXI. fig. 5. 
13. Butimus capILuacevs, Pfr. B. testa imperforata, ovata, 
tenut, capillaceo-striata, fulva ; spira ovato-conica, obtusissima; 
sutura albido-marginata, crenulata ; anfr. 5 convewiusculis, ul- 
timo inflato, 3 longitudinis equante, subplicato, inter plicas 
dense striato et striis distantibus spiralibus obsolete decussato; 
columella rosea, recedente, vix plicata ; apertura parum obliqua, 
oblongo-ovali, intus fulva, antice albida; perist. roseo, incras- 
sato, reflexiusculo-expanso, margine columellari dilatato, JSorn- 
cato, adnato. 
Long. 64, diam. 37 mill. 
Hab. Banks of the river Solimoes (Mr. Yates). 
14. Butimus Bocorensis, Pfr. B. testa anguste umbilicata, 
subfusiformi-oblonga, tenuiuscula, sublevigata, nitidula, albida, 
fasctis subinterruptis vel strigis subangulosis nigricantibus 
