OMPHALOTROPIS §. 2. 
177 
Hydrocena fasclolata Crosse ^ Ftsch. in Journ. Conch. VI. p. 371. 
Habitat Bangkok (Siam), Cochinchina. 
10. O. fulvida Pfr. 1071. 
T. perforata, ovato-conica, tenuiuscula, sublaevigata, ful- 
vida, saturatius nebulosa vel maculata ; spira conica, apice 
acuto ; sutura levis, sublate marginata; anfr. 8 vix convexius- 
culi , ultimus spiram subaequans , basi globosua , circa per- 
forationem carina brevi munitus; apertura vix obliqua, angu- 
lato-ovalis ; perist. simplex, rectum, margine columellari arcuato, 
reflexiusculo* Long, diam. 8^/4 mill. Apert. 8^5 indk 
longa, 2^4 lata. (Coll. Bernardi.) 
Hydrocena fulvida (Omphalotropis) Pfr. in Journ. Conch, X. 1862. 
p. 44. t. 6. f. 4. 
Habitat Siam. 
11. erosa Quoy. f (Ins. Guam.) Pneum. II. p. 163. 1072. 
12. clubia Pfr. (Coll. 524. — Opara.) .... - - - 163. 1073. 
13. Huaheinensis Pfr. (Coll. 525. — Ins. Hua- 1074. 
heine.) - - -- 163. 
14. radiata Pfr. (Coll. 526. — Borneo.) .... - - - 163. 1075. 
15. globosa Bens. (Coll. 527. — Ins. Maurit.) . - - - 164. 1076. 
16. mall eat a Pfr. (Coll. 528. — ■ Australia.) . . - - - 164. 1077. 
17. glabrata Pfr. (Coll. 529. — Borneo.) ... - - - 164. 1078. 
18. O. maritima lIoaitrousEler* 1079. 
T. perforata, ovato-conica, tenuis, laevigata, nitida, pellu- 
cida, lutescens vel rubello-fulva ; spira turbinata, versus apicem 
acutiusculum valde attenuata ; sutura profunda; anfr. 5 convexi, 
ultimus spira brevior, infra medium subangulatus , circa per- 
forationem carina elevata pallida munitus ; apertura fere verti- 
calis, subangulato-ovalis, basi rotundata; perist, rectum, mar- 
ginibus callo tenui junctis, columellari reflexiusculo. Long. 
5V2j diam. 8^/4 mill. Apert. 2V2 mib- longa. (Coll. Nr. 530 .) 
Hydrocena (Omphalotropis) maritirna Montrouz. in Journ. Conch. XI. 
1863. p. 74. 165. t. 5. f. 4. 
Habitat in Nova Caledonia. 
19. granum Pfr. (Coll. 531. — Ins. oceani austr.) Pneum. II. p. 165. 1080. 
20. cere a Pfr. (Ins. Norfolk.) - - - 165. 1081. 
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