ALYCAEUS §. 1. 2. 
35 
6. A. eongtrietug Benson. 
T. perforata, ovato-conica, tenuis, costis filaribus obliquis 
subdistantibus munita, diaphana, albida vel rufula; spira elon- 
gato-conica, apice obtusa; sutura profunda ; anfr. 4 1 / 2 convexi, 
ultimus antice confertissime costulato-striatus , pone aperturam 
constrictus et callo suturali retroverso munitus ; apertura fere 
verticalis , circularis, 3 / 8 longitudinis aequans; perist. subcon- 
tinuum, undique breviter reflexum. — Operc. normale. — 
Diam. 2, alt. 3y 2 mill. (Mus. Benson.) 
Cyclostoma conslrictum Bens, in Ann. and Mag. N. H. 2d ser. VIII. 
p. 188. X. p. 272. 
— — Chemn . ed. nov. p. 379. t. 49. f. 26 — 28. 
Alycaeus constrictus Pfr. Mon. Pneum. p. 120. n. 3. 
— — Gray Cat. Phan. p. 85. 
— H. et A. Adams Gen. rec. Moll. II. p. 278. 
Habitat Darjiling Himalayae Sikkimensis. 
7. A. gculptilig Heaigosi* *f* 
„T. late umbilicata, turbinata , subtrochiformi , acute 
eostulata; spira conica, sutura profunda, apice attenuato, acu- 
tiusculo; anfr. 5 convexis, ultimo ad latus inflate et costulis 
confertissimis munito, turn constricto, antice laeviori, tumido, 
tubulo suturali mediocri, ab apertura remoto, incumbente, 
circa umbilicum obtuse angulato , intus concaviusculo ; aper- 
tura obliqua, circulari; perist. duplici, interiori subporrecto, 
mcrassato, margine superne profunde inciso , interiori dextrali 
interne crenulato vel denticulato, externo incrassato , expanso, 
reflexiusculo, superne incrassato prominente, ab anfractu pen- 
ultimo sinu profundo separate. — Operc.? — Diam. 3V 0 
axis 2i/ 4 mill.* (B.) /2 ’ 
Alycaeus sculptilis Bens, in Ann. and Mag. N. H. 2d ser. XVII. p. 226. 
Habitat raro ad Thyet-Mio prope fluvium Irawadi, non pro- 
cul a finibus provinciae Burmanicae Britannicae (W. Theobald). 
s. 2. 
8. A. gpiracelliivti A* Adams et Beeve. 
T. late umbilicata, conoideo-discoidea, solidula, confertim 
costulato-striata, corneo-albida ; spira vix elevata ; anfr. 4 con- 
vexi, ^ ultimus prope aperturam constrictus , turn crista varici- 
formi munitus et pone peristoma iterum coarctatus ; spiraculum 
pone constrictionem oriens, retrorsum incumbens; apertura 
diagonals, c i r cularis; perist. duplicatum: internum continuum, 
3 * 
