392 
HELICINA §. 10. II. 
lum descendens, subangulatus, basi fere planus ; apertura perob- 
liqua, triangularis; columella brevissima, simplex, retrorsum 
in callum basalem nitidum , concolorem dilatata ; perist. sub- 
incrassatum, expansiusculum. — Operc. tenue, rubellum. — 
Diam. maj. 4 Va> mm* 3‘ 2 / 3 , alt. 2 2 / s mill. (Coll. Nr. 66.) 
Helirina m'muta Sorv. in Proc. Zool. Soc. 1842. p. 7. 
— — Sow. Thes. N. 70. p. 13. t. 1. f. 40. 41. 
— — Chemn. ed. II. N. 71. p. 54. t. 4. f. 24-27. 
discolor Muhlf mss. in Ant. Verz. p. 53. n. 1938/?. 
jS. Spira paulo magis elevata: 
Ilelicina flammeata Miihlf mss. in Ant. Verz. p. 53. n. 1938. 
Habitat in insulis Opara et Oheatora. 
§. 11 . 
683 120 . H. unifasciata Gray, f 
T. subdepresso - ovata , obscure acute carinata, albida, 
fusco unifasciata, spiraliter subcostata, striata; spira convexa, 
conica, subtus convexa; perist. inerassatum, reflexum; aper- 
turae angulus columellaris obtuse emarginatus. — Axis */*„; 
diam. 6 / 10 poll. (Gray.) 
Hclicina unifasciala Gray in Zool Journ. I. p. 69. t. 6. f. 12. 
— — Desk, in Lam. hist. VIII. p. 163. N. 16. 
— - — Sow. Thes. t. 1. f. 21. (Ex Gray.) 
— — Chemn . ed. II. N. 91. p. 67. t. 9. f. 37. (Ex Gray.) 
Habitat . . .? 
684 121. II* Ifloreletiana Pfr. 
T. depresse conoidea, tenuiuscula, lineis elevatis spira- 
libus minute sculpta, opaca, rubello-flavida ; spira brevis, co- 
noidea, apice acuta; anfr. 5 plani, ultimus acute carinatus, 
non descendens, basi convexus; apertura perobliqua, triangu- 
laris ; columella brevis , arcuata , callum crassum , album , cir- 
cumscriptum emittens; perist. subincrassatum, album, margine 
supero late expanso-reflexo, basali leviter arcuato, late reflexo. 
— Operc.? — Diam. maj. 21%, min. 18, alt. 10 mill. (Mus. 
Cuming.) 
*) T. parva , depressa, subangulata , rubra vel straminea; margine 
crasso, effuso; labio interno calloso ; columella ad basin subemarginata. — 
Alt. 0,10; lat. 0,15 poll. (Sow. 1. c.) 
