ALYCAEUS §. 1. 2. 35 



6. A. constrictiis Ben«on. 



T. perforata, ovato-conica, tenuis, costis filaribus obliquis 

 subdistantibus munita, diaphana, albida vel rufula ; spira elon- 

 gato-conica, apice obtusa; sutura profunda ; anfr. 41/2 convexi, 

 ultimus antice confertissime costulato-striatus , pone aperturam 

 constrictus et callo suturali retroverso munitus; apertura fere 

 verticalis, circularis, ^/g longitudinis aequans; perist. subcon- 

 tinuum, undique breviter reflexum. — Operc. normale. — 

 Diam. 2, alt. Sy^ niill. (Mus. Benson.) 



Cyclostoma cons/rictum 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. 

 Ahjcaeus constrictus Pfr, Mon. Pneum. p. 120. n. 3. 



— — Gray Cat. Phan. p. 85. 



— — //. et A. Adams Gen. rec. Moll. II. p. 278. 

 Habitat Darjiling Himalayae Sikkimensis. 



7. A. sculptllis Benson* f 



„T. iate umbilicata, turbinata, subtrochiformi , acute 

 costulata; spira conica, sutura profunda, apice attenuato, acu- 

 tiusculo; anfr. 5 convexis, uUimo ad latus inflato et costulis 

 confertissimis munito, tum constricto, antice laeviori, tumido, 

 tubulo suturah mediocri, ab apertura remoto, incumbente, 

 circa umbihcum obtuse angulato , intus concaviusculo ; aper- 

 tura obhqua, circulari; perist. duphci, interiori subporrecto, 

 incrassato, margine superne profunde inciso , interiori dextrah 

 interne crenulato vel denticulato, externo incrassato, expanso, 

 reflexiusculo, superne incrassato prominente, ab anfractu pen- 

 uhimo sinu profundo separato. — Operc. ? — Diam. 3^2» 

 axis 21/4 mih." (B.) 



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. spiracellum A. Adains et RecYe* 



T. late umbihcata, conoideo-discoidea, sohdula, confertim 

 costulato-striata, corneo-albida ; spira vix elevata ; anfr. 4 con- 

 vexi, uhimus prope aperturam constrictus, tum crista varici- 

 formi munitus et pone peristoma iterum coarctatus ; spiraculum 

 pone constrictionem oriens, retrorsum incumbens; apertura 

 dlagonahs, circularis; peri.st. diiphcatuin: internuni contininim, 



3* 



