1862.} DR. L., PFEIFFER ON NEW LAND SHELLS. 275 
datus ; apertura obliqua, ovalis ; perist. simplex, rectum, mar- 
gine columellari sursum triangulatim dilatato, reflexo, sub- 
appresso. 
Long. 144, diam. 8 mill. 
Hab. Lao Mountains, Camboja (Mouhot). 
26. Crausit1a MounotrI, Pfr. (Pl. XXXVI. fig. 5). J. subri- 
mata, fusiformis, solidula, plicis filaribus confertis et striis 
spiralibus arcte reticulata, sericina, pallide fulvida, maculis et 
strigis albis irregulariter picta; spira a medio regulariter 
attenuata, apice obtuso; sutura rufo obsolete marginata, fas- 
ciculis plicarum albarum subcrenata; anfr. 12, convexiusculi, 
summi unicolores pallidi, interdum truncati, ultimus angustior, 
rotundatus, breviter solutus, vix descendens; apertura fere 
verticalis, subangulato-piriformis ; lamelle triangulares, fere 
contigue ; lunella filaris, elongata, parum arcuata ; plica pala- 
éalis 1 supera, subcolumellaris juxta lamellam inferam emer- 
gens; perist. continuum, expansum et reflexiusculum, margine 
externo superne subsinuato. 
Long. (integr.) 42, diam. 9 mill. 
Hab. Lao Mountains, Camboja (Mouhot). 
27. CycLtotus Granutatus, Pfr. (14a). TT. umbilicata, conoi- 
deo-depressa, solida, undique dense et subruditer granulata, 
opaca, albida, epidermide ad peripheriam latissime castaneo- 
Sasciata vestita ; spira parum elevata, vertice subtili; anfr. 43, 
convexi, celeriter accrescentes, ultimus rotundatus, circa umbi- 
licum mediocrem non cristatus; apertura fere verticalis, sub- 
circularis ; perist. simplex, rectum, obtusum, continuum, an- 
Sractui contiguo breviter adnatum. Operc. planum, marginibus 
anfractuum haud prominulis. 
Diam. maj. 25, min. 20, alt. 14 mill. 
Hab. Ecuador. 
28. Auycawus mounott, Pfr. (Pl. XXXVI. figs. 1, 2.) 7. an- 
guste umbilicata, subpyramidalis, solidula, opaca, densissime 
capillaceo-striata, carneo-albida ; spiraturbinata, apice obtusulo, 
lutescens ; sutura profunda; anfr. 14, convexi, ultimus irregu- 
lariter inflatus, saceatus, 3 mill. pone aperturam subito con- 
strictus, a strictura canalem longum, in sutura retrocedentem 
emittens, tum sensim dilatatus et costulis nonnullis distantibus 
munitus ; apertura obliqua, subcircularis ; perist. duplicatum, 
internum continuum, breviter adnatum, externum fornicato- 
reflexum, latere sinistro subangulatim dilatatum. 
Diam. maj. 72, min. 63, alt. 54 mill. 
Hab. Lao Mountains, Camboja (Mouhot). 
29. Auycazus (sect. Dioryx, Bens.) pacca, Pfr. (4a). T. bree 
viter rimata, globoso-turbinata, sublevigata, parum nitida, 
cereo-albida; spira regulariter turbinata, apice acutiusculo, 
