378 HELICINA $. 8. 9. 
breviter recedens, angulo subrecto in peristoma tenue, expan- 
, 
eo 
siusculum abiens; callus basalis tenuissimus, diffusus. — 
Operc. tenue, pallide corneum. — Diam. maj. 3, min. 2*/,, 
alt. 2'/, mill. (Coll. Nr. 56.) 
Helicina Antoni Pfr. in Zeitschr. f. Malak. 1848. p. 88. 
—— — . Chemn. ed. II. N. 55. p. 44. t. 5. f. 35—38. 
Habitat Honduras (Dyson). 
$. 9. 
649 86. Hi. maxima Sowerby. 
T. globoso-depressa, solidiuscula, laevigata, albida; spira 
brevissima, vix mucronulata; anfr. 5'/, subplani, rapide ac- 
crescentes, ultimus depressus, basi convexior; apertura subver- 
ticalis, ampla, semiovalis; columella basi subtuberculata, re- 
trorsum in callum semicircularem, concolorem dilatata; perist. 
simplex, expansum, reflexiusculum. — Operc.? — Diam. maj. 
29, min. 21, alt. 15 mill. (Mus. Cuming.) 
Helicina maxima Som. in Proc. Zool. Soc. 1842. p. 6. *) 
— — Som, Thes. N.)87: pi585 123 f die 
— — Chemn. ed. II. N. 56. p. 44. t. 6. f. 3. 4. 
Habitat in insula Jamaica (Adams). 
650 87. WW. nobilis Adams. 1 
T. depresse globoso-conica, crassa, solida, laevigata, in- 
terdum strüs nonnullis spiralibus sculpta, saturate rufa, basi 
alba; spira convexo-conica; anfr. fere 4'/,, subplanulati, su- 
tura profundiuscula juncti, ultümus antice et superne valde 
depressus, imo sinuatus; apertura superne compressa, latera- 
liter expansa; labrum erassiusculum , medio modice reflexum, 
emarginatum sicut H. maxima. —  Diverg. media 1309; lat. 
max. 0,9; lat. min. 0,73; alt. 0,55 poll. (A.) 
Helicina nobilis 4ddams in. Aun. 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. l. 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 
