HELICINA §. 26. 
285 
318 H. biconica Mousson. t 
„Testa conoidea, angulata, subtiliter striatula, nitida, supra 
lutea, ad suturam rufo-fasciata, infra laete viridis, zona angu- 
lari lutea; anfr. 4^2? apice submammillato, subplani, ultimus 
supra et infra aequaliter convexus, callo umbilicari circum- 
scripto, lutescente, minutim ruguloso, immediate ad aperturam 
fuscorufescens; apertura parum obliqua, subtriangularis, intus 
fusca; peristoma expansum, album, margine supero stricto, 
solum prope insertionem paulum arcuato, infero arcuato, colu- 
mellari perpendiculari, brevi. — Operculum tenue, fuscum. — 
Diam. maj. 10, min. 7, alt. 6; apert. long. S 1 ^, lat. 5 mill." 
(y. M.) 
Helicina biconica Mousson collect.; Martens Ostas. Zool. II. p. 169. 
Habitat in insula Java; specimen prope Buitenzorg a 
Zollinger lectum. 
Obs. An hue Helicina viridis Gray in Zool. journ. I. p. 67. t. 6. f. 7, 
Sowerby Thes. t. 2. f. 67, Chemn. ed. nov. t. 9. f. 11? Nec Lamarck. Conf. 
Nr. 209. 
319. H. Dunkeri Zelebor. 
T. sublenticularis, carinata, solida, confertissime capillaceo- 
striata, sericea, carnea, saturatius variegata; spira breviter 
conoidea, vertice minuto; sutura levis, marginata; anfr. 4 1 / 2 
planiusculi, ultimus acute compresso-carinatus, basi convexius- 
culus, levius striatus, medio callo crasso, albido, subcircum- 
scripto munitus; apertura diagonalis, triangularis, ad carinam 
subcanaliculata; perist. simplex, margine dextro anguste ex- 
panso, basali reflexiusculo, cum columella brevissima, callosa 
angulum distinctum formante. — Operc. solidum, margarita- 
ceum. — Diam. maj. 10, min. 9, alt. 5 mill. (Mus. Vindob.) 
Helicina Dunkeri Zelebor mss., Pfr. et Zeleb. in Verh. zool. bot. Ges. 
Wien XVII. 1867. p. 808. 
Pachystoma Dunkeri Frauenf. ibid. XIX. 1869. p. 879. 
— — Morch in Journ. Conch. XX. 1872. p. 331. 
Habitat in insulis Nicobaris. (Zelebor). 
* 
320. Rosaliae Pfr. (Coll. 161.) III. 243. — Ins. Philippin. 
321. pallida Gould, f I. 396. II. 218. III. 244. — Patel Cat. p. 125. 
— Ins. Feejee. 
322. taeniata Quoy & Gaim. f I. 398. II. 218. III. 244. — Ins. 
Vanikoro. 
323. Barbadensis Pfr. (Coll. 162.) II. 218. III. 244. — Ins. Barbadoes. 
324. Stanleyi Forbes, f I. 401. II. 218. III. 244. — Archip. Louisiad. 
