830 DR. L. PFEIFFER ON FORMOSAN LAND-SHELLS. [Dec. 12, 
supero anguste expanso, basali subreflexo, columellari breviter 
ascendente, superne subdilatato. 
Diam. maj. 22, min. 20, alt. 9 mill. 
8. BuLimus swinuokt, Pfr. (Pl. XLVI. fig. 2, 2a). TT. umbili- 
cata, ovato-conica, tenuiuscula, oblique striatula, striis spirali- 
bus confertissimis decussata, fulvida, strigis brunneis vel nigri- 
cantibus irregulariter ornata; spira convexo-conica, sursum pal- 
lida, vertice acuto; anfr. 63, parum convevi, ultimus spira bre- 
vior, basi rotundatus ; apertura parum obliqua, truncato-ovalis, 
intus cerulescenti-margaritacea ; perist. simplex, tenue, mar- 
gine dextro anguste expanso, columellari late fornicatim reflexo. 
Long. 35, diam. 20 mill. 
9. Butimus spHzroconvs, Pfr. (Pl. XLVI. fig. 3). TJ. sub- 
clause perforata, globoso-conica, tenuiuscula, oblique striata, 
carneo-albida, epidermide nitida fulvida vestita ; spira conica, 
vertice acutiusculo; anfr. 6, convexiusculi, ultimus spira bre- 
vior, ventrosus, medio linea rufa cinctus ; columella verticalis ; 
apertura obliqua, subquadrangularis; perist. tenue, breviter 
expansum, marginibus remotis, dextro subflexuoso, columellari 
sursum dilatato, reflexo. 
Long. 22, diam. 17 mill. 
10. Buximus 1ncertus, Pfr. (Pl. XLVI. fig. 1). 7. subperfo- 
rata, oblongo-turrita, tenuis, minute et oblique ruguloso-striata, 
nitidula, fulva ; spira convezro-turrita, vertice obtusulo; anfr. 
- 10 converiusculi, ultimus + longitudinis vix formans, rotunda- 
tus; apertura perobliqua, lunari-rotundata ; perist. simplex, 
rectum, margine columellari ad insertionem vix reflexo. 
Long. 10, diam. 44 mill. 
11. Cravsinia swinuoet, Pfr. (Pl. XLVI. fig. 11). 7’. leviter 
arcuato-rimata, fusiformi-turrita, solida, oblique striata, seri- 
cea, castanea; spira sensim attenuata, apice obtusa; anfr. 
10-11, convexiusculi, ultimus basi turgidus; apertura verticalis, 
ovalis, angulo supero rotundato ; lamelle fortes, supera mar- 
ginalis, altera obliqua ; lunella imperfecta, e pliculis 6 formata ; 
plica palatalis 1 elongata, subcolumellaris fere ad marginem 
emersa; perist. continuum, album, callosum, superne appressum, 
caterum reflexum. 
Long. 31-34, diam. 8 mill. 
12. CLAUSILIA SHERIDANI, Pfr. TJ. subrimata, fusiformi-tur- 
rita, solidula, striata, nitida, saturate castanea ; spira a medio 
subregulariter attenuata, apice acutiuscula; sutura simplez, 
profunda; anfr. 9-10, convexi, ultimus angustior, costulato- 
striatus, solutus, dorso angulatus, basi rotundatus ; apertura 
subobliqua, angulato-piriformis; lamelle parvule, approxi- 
mate ; lunella exigua, remota; plica palatalis | elongata, sub- 
