186 TRUNCATELLA. 
223 5. Tr. marginata Nüster. 
T. subrimata, cylindracea, sursum sensim attenuata, 
tenuiuscula, nitida, succinea vel lutescens; sutura marginata, 
plicis papillaeformibus instructa; anfr. superst. 4— 4!/, con- 
vexiuseuli, ultimus basi plicatulus, brevissime vel obsolete 
cristatus; apertura verticalis, angulato- ovalis, basi subeffusa; 
perist. continuum, tenue, expansiusculum. — Long. 6!/,, diam. 
21/, mill. Ap. vix ultra 2 mill. longa. (Coll. Nr. 5.) 
Truncatella marginata. Küst. Mon. p. 12. n. S. t. 2. f, 24—20. *) 
B. Minor. 
Habitat Labuan, Borneo (Gruner) et in Malacca ( Mus. 
Cuming); var. 8 prope Pondichery. 
Obs. Specimina juniora turrita, apice acuta, anfractibus 8 tumidis, 
superis costatis, ultimo obtuse angulato, 
224 6. Tr. Ceylaniea Pfr. 
T. subrimata, attenuato-cylindracea, striatula, pellucida, 
nitida, corneo-rufa vel flavescens; anfr. superst. 4, supremi 2 
rotundati, reliqui planiores, omnes ad suturam plicato-crenati, 
ultimus basi non compressus; apertura verticalis, ampla, 
angulato-subovalis; perist. continuum, margine dextro tenui, 
expansiusculo, columellari leviter arcuato, appresso. — Long. 
6, diam. 2 mill. Ap. 2 mill. longa. (Coll. Nr. 6.) 
Truncatella Ceylanica Pfr. in Proc. Zool. Soc. 1856. 
Habitat in insula Ceylon. 
hz 
nC 
[2 
7. "Wr. subeylindrica Gray. 
T. vix rimata, cylindrica, costulis confertis regularibus, 
vel ad suturam modo conspicuis, vel evanescentibus munita, 
nitida, pellucida, corneo-flava vel hyalina; anfr. superst. 4 
convexiusculi, medio planulati, regulariter accrescentes, ultimus 
basi non cristatus; apertura verticalis, ampla, angulato-ovalis, 
basi subeffusa; perist. leviter inerassatum, margine externo 

albida; operculo convexo, calcareo, corneo-marginato. — Div. 22"; spirae 
long. post decoll. 0,2 poll.; long. tot. 0,31 poll.: lat. 0,12 poll. (C. B. Adams 
1e) 
*) Testa rimata, adulta truncata, subcylindrica, sursum sensim attenuata, 
tenuiuscula, nitida, succinea; anfractibus 4—4!/; convexis, ultimo basi bre- 
vissime carinato-cristato, sutura marginata, margine pliculis papilliformibus 
posita; apertura ovata, basi subeffusa; peristomate continuo, recto. — Alt. 
21/,"*.. Lat. fere 1'"^. (Küst. L3 
