OMPHALOTROPIS $. 2. 311 
Hydrocena? dubia Pfr. in Zeitschr. f. Mal. 1847. p. 112. 
Realia dubia Gray Catal. Cycloph. p. 63. N. 6. 
Omphalotropis dubia Pfr. in Proc. Zool. Soc. 1851; Consp. N. 460. 
Habitat in insula Opara (H. Cuming.) 
11. O. muultilirata Pfr. 513 
T. perforata, ovato-conica, solidula, liris elevatis acutius- 
culis subconfertis, mediana et basali validioribus sculpta, opaca, 
rubello-carnea; spira conica, acutiuscula; anfr. 5'/,, superi 
subplani, ultimus convexior; apertura parum obliqua, angulato- 
ovalis; perist. simplex, rectum, marginibus approximatis, colu- 
mellari superne emarginato, deorsum dilatato, .reflexiusculo. — 
Operc.? — Long. 8'/, diam. 5 mill Ap. 4 mill. longa, 8 
lata. (Mus. Cuming.) 
Cyclostoma multiliratum (Omphalotropis) Pfr. in Proc. Zool. Soc. 1851. 
Omphalotropis multilirata Pfr. Consp. N. 461. p. 70. 
Habitat in insula Mauritii (Sir David Barclay). 
12. O0. globosa Benson. 514 
T. umbilicata, eloboso-coniea, tenuis, subtilissime striatula, 
diaphana, non nitens, cinnamomea, maculis opacis albidis sub- 
fasciatim dispositis ornata; spira conica, apice peracuta; anfr. 
6, superi vix convexi, ultimus globosus, carina basal subtil, 
filari; apertura parum obliqua, ovalis; perist. simplex, margi- 
nibus fere contiguis, dextro perarcuato, columellari medio 
dilatato, patente. — Opere. tenuissimum, corneo -lutescens, 
extus eoncaviusculum. — Long. 8, diam. 5 mill. Ap. 4 mill. 
longa, 3'/, lata. (Coll. Nr. 284.) 
Cyclostoma globosum Bens. mss. teste Barclay. 
c — Chemn. ed. II. N. 295. t. 39. f. 14— 16. 
Omphalotropis globosa Pfr. in Proc. Z. S. 1851; Consp. N. 462. p. 71. 
Habitat in arboribus sylvarum insulae Mauritii (Sir D. Barclay). 
13. €». plicosa Pfr. 515 
'T. perforata, ovato-coniea, tenuis, longitudinaliter confer- 
tim plicata, sericea, rubello-cornea; spira conica, acuta; anfr. 
5 convexiusculi, ad suturam crenulati, ultimus spiram subae- 
quans, rotundatus, circa perforationem angustam compresse 
subearimatus; apertura vix obliqua, ovalis; perist. simplex, 
rectum, marginibus approximatis, columellari relexiusculo, — 
