286 
HELICINA §. 26—28. 
325. Nicobarica Phil. (Coll. 163.) I. 402. II. 218. III. 244. — Tryon 
in Araer. journ. conch. V. p. Ill: ins. Andaman. — Pachystoma 
Morch in Journ. Conch. XX. 1872. p. 318. — Ins. Nicobar. 
326. Andamanica Bens, f III. 244. — Haul. 8f Theob. Conch. Ind. I. 
t. 6. f. 10. — Ins. Andaman. 
327. suturalis Martens, f III. 244. — Mart, in Monatsber. Berl. Ak. 
1864. p. 120; Ostas. Zool. II. p. 168. t. 4. f. 18. — Amboina, Ceram. 
328. H. discoidea Pease, f 
„T. depressa, tenuiscula, vix nitidula, oblique tenuiter et 
irregulariter rugoso-striata; spira breviter conoidea; anfr. 5, 
plano-convexis, ultimo depresso, ad peripheriam costato-cari- 
nato; apertura triangulari-lunaris ; perist. simplici acuto, vix 
reflexo, ad basim acute angulato, subemarginato, super basim 
callo continuato; columella callum copiosum, subgranulosum, 
circumscriptum; callo sulco arcuato marginato. Subrufa, in- 
terdum straminea vel cornea. — Diam. maj. 5 1 / 2 , min. 5, alt. 
3 mill. 44 (P.) 
Helicina discoidea Harper Pease in Amer. journ. conch. III. 1867. p. 226. 
Habitat in insula Tahaa Polynesiae. 
§. 27. 
329. rhodostoma Gray. I. 398. II. 218. III. 244. — Color variabilis: 
saepe fere alba; peristoma album, roseum vel saturate castaneum; 
spina columellaris longitudine varians, interdum obsoleta; operculum 
magnum, tenue, corneum. — Guppy in Ann. and Mag. n. h. 4th. 
ser. I. 1868. p. 435: ins. Dominica. — Patel Cat. p. 126. — Gua- 
deloupe. 
330. bicolor Pfr. I. 398. II. 218. III. 244. — Taheiti? (Negat Pease 
in Proc. Zool. Soc. 1871. p. 466.) 
331. spinifera Pfr. II. 218. III. 244. — Ins. Salomonis. 
332. livida Hombr. & Jacq. f II. 219. III. 245. — Ins. Salomonis. 
333. angulata Sow. (Coll. 164.) I. 399. II. 219. III. p. 245. — Patel 
Cat. p. 125. — Pachystoma angulata Frfd. in Verh. zool. hot. Ges. 
Wien XIX. 1869. p. 879. — Brasilia. 
§• 28. 
334. Besckei Pfr. (Coll. 165.) I. 402. II. 219. III. 245. — Patel Cat. 
p. 125. — Brasilia. 
335. variabilis Wagn. (Coll. 166.) I. 402. II. 219. III. 245. — Patel 
Cat. p. 126. — Helicina fas data et flava Spix, zonata Sow., zephy- 
rina Pot. Mich., rosea Miihlf. — Brasilia. 
336. biangulata Pfr. (Coll. 167.) I. 403. II. 219. III. 245. — Habitat? 
337. Tilei Pfr. (Coll. 168.) I. 403. II. 219. III. 245. — Patel Cat. p. 
126. — Brasilia. 
338. trochlea Gould, f II. 220. III. 245. — Ins. Aurora. 
