1877. ] SOUTH-AMERICAN HELICIDZ. 363 
siderably more so than in D’Orbigny’s species, which was obtained 
in Bolivia more than a thousand miles south of where the present 
form was collected. 
The transverse brown spotting appears rather like interrupted 
bands than series of spots. These are connected by opaque white 
lines; and the uppermost series is the narrowest. 
The lines of growth are rather coarse towards the labrum, which 
shows the yellow colour of the interior on the outside. 
Bu.imus (Drymavs) QuaTorRiANnus. (Plate XXXIX. fig. 7.) 
Testa umbilicata, ovato-acuminata, tenuis, minutissime spiraliter 
striata, incrementique lineis sculpta, lutescenti-albida, strigis 
nigro-fuscis latiusculis subfulguratis longitudinaliter strigata ; 
spira conica, apice acutiuscula ; anfr. 6 parum convexiusculi, 
ultimus magnus, aliquanto inflatus, breviter ascendens; aper- 
tura ovalis, intus pallide lutescens, strigis pellucentibus, longitu- 
dinis totius 3 paulo superans ; peristoma tenue, late expansum, 
extrinsecus et intus rosaceum, margine columellari late reflexo. 
Long. 263 mill., diam. 11; apertura extrinsecus 143 longa, 94 lata. 
Hab. Ecuador. 
The species here described has been confounded with B. fucutus 
of Reeve, and was so labelled in the Cumingian collection. The 
type of that species, with the majority of all the others described in 
the late Mr. Lombe Taylor’s collection having been most liberally 
presented to the British Museum by Mrs. L. Taylor, has enabled me 
to compare the two forms; and certain differences are observable 
which appear sufficiently constant to distinguish them. 
In the first place, Reeve’s species is from New Granada, and the 
present one from Ecuador. It is also larger than the former, has 
the body-whorl more inflated, the aperture is longer than half the 
entire length of the shell, whereas it is less in fucatus ; the peristome 
is more inflated, and the coloration is different. 
Buuimus (DryM#us) ALBOLABIATUS. (Plate XXXIX. fig. 4.) 
Testa ovato-fusiformis, anguste (fere obtecte) perforata, tenuis, 
transversim obsolete striata, incrementique lineis obliquis sculpta, 
Susco-albida, strigis latis obliquis nigrescentibus vel purpureo- 
nigris fulguratis et fasciis interruptis egusdem coloris (in anfr. 
superioribus 2, in ultimo 3) ornata; spira elongata, conica, 
lateribus leviter convexis ; anfract. 63, convexiusculi, infra sutu- 
ram leviter constricti, ultimus circa basim extraque labrum linea 
rufescente ornatus ; apertura inverse auriformis, subverticalis, 
intus lilacea, strigis fasciisque pellucentibus, longit. totius 4 
paulo minor ; peristoma tenue, extrinsecus et intus album, sub- 
late expansum, margine columellari reflexo, intus tortuoso. 
Hab. Malacatos, South Ecuador. 
The nearest ally of this handsome species appears to be B. fusoides 
of D’Orbigny, which, however, is a much more elongated species, 
without transverse interrupted bands, at all events in the typical 
form, and with a rosy lip to the aperture. 
