378 
HELICINA §. 8. 9. 
breviter recedens, angulo subrecto in peristoma tenue, expan- 
siusculum abiens; callus basalis tenuissimus, diffusus. — 
Operc. tenue, pallide corneum. — Diam. maj. 3, min. 2 2 / s > 
alt. 2 l / 4 mill. (Coll. Nr. 56.) 
Helicina Antoni Pfr. in Zeitschr. f. Malak. 1848. p. 88. 
— — Chcmn. ed. II. N. 55. p. 44. t. 5. f. 35 — 38. 
Habitat Honduras (Dyson). 
§• 9. 
649 86- If. maxima Sowerby. 
T. globoso-depressa , solidiuscula, laevigata, albida; spira 
brevissima, vix mucronulata; anfr. 5V 2 subplani, rapide ac- 
crescentes, ultimus depressus, basi convexior; apertura sub ver- 
ticals, ampla, semiovalis; columella basi subtuberculata , re- 
trorsum in callum semicircularem, concolorem dilatata; perist. 
simplex, expansum, reflexiusculum. — Operc.? — Diam. maj. 
25, min. 21, alt. 15 mill. (Mus. Cuming.) 
Helicina maxima Sow . in Proc. Zool. Soc. 1842. p. 6.*) 
— — Sow. Thes. N. 37. p. 8. t. 1. f: 11. 
— — Chemn. ed. II. N. 56. p. 44. t. 6. f. 3. 4. 
Habitat in insula Jamaica (Adams). 
650 87. IB. nobilis Adams, f 
T. depresse globoso-conica , crassa, solida, laevigata, in- 
terdum striis nonnullis spiralibus sculpta, saturate rufa, basi 
alba; spira convexo - conica ; anfr. fere 4'/ 2 , subplanulati , su- 
tura profundiuscula juncti, ultimus antice et superne valde 
depressus, imo sinuatus; apertura superne compressa, latera- 
liter expansa ; labrum crassiusculum , medio modice reflexum, 
emarginatum sicut H. maxima. — Diverg. media 130°; lat. 
max. 0,9; lat. min. 0,73; alt. 0,55 poll. (A.) 
Helicina nobilis Adams in Ann. Lyc. N. York V. N. 2. p. 49 et Contr. 
to Conch. N. 8. p. 133. **) 
Habitat in insula Jamaica. 
*) T. globosa, subdepressa, laevi , alba; apertura magna, semilunari, 
margine reflexo , acuto ; labio interno crassiusculo ; columella obtuse angu- 
lata. — Alt. 0,50; lat. 1". (Sow. 1. c.) 
**) Shell depressed globose conic, thick and solid: white beneath and 
at the end of the last whorl , otherwise rufous or dark brownish red : very 
