HELIX. 565 
vexior, peripheria obtuse angulatus, non descendens; apertura 
parum obliqua, depresse lunaris; perist. simplex, rectum, mar- 
ginibus regulariter arcuatis, columellari ad insertionem strictim 
reflexiusculo. — Diam. maj. 26, min. 23, alti. 16 mill.» (M.) 
Heliac pumicata Morelet Séries conch. IV. 1875. p. 248. t. 12. f. 2. 
Mabitat Ajuthia, Siam (Bocourt). 
628», Hi, Bocourti Morelet. | 
«T. perforata, depressa, tenuis, subtilissime striata, nitida, 
diaphana, corneo-rufescens, subtus nitidior et pallidior; spira 
brevissime conoidea, apice obtusula; sutura strictim marginata; 
anfr. 7 parum convexi, leviter accelerantes, ultimus supra medium 
obtuse angulatus, basi convexior, non descendens; apertura de- 
presse lunaris; perist. simplex, acutum, rectum, marginibus 
regulariter arcuatis, columellari ad insertionem vix reflexiusculo. 
— Diam. maj. 28, min. 95, alti. 15 mill.» (M.) 
Helioo Bocourti Morelet Séries conch. IV. 1875. p. 249. t. 12. f. 9. 
Habitat. Battambang Cambodjae. 
* 
629. naninoides BHens. — JMorelet Sér. conch. IV. p. 246. («Synon. 
Helix Isabella Hombr. S" Jacq.! — Var. Q. major [diam. 38, alt. 
28 mill], margine columellari incrassato, centrum versus callum 
subangulosum formante: Poulo Condor.») 
632. interrupta Bens. — Conch. Ind. t. 27. f. 3. 
633. Cyclotrema Bens. — Conch. Ind. t. 28. f. 10. 
6036. Bombayana Grat. — Conch. Ind. t. 29. f. 5. 
640. plicatula Blanf. — Conch. Ind. t. 28. f. 4. 
645. regulata Bens. — Conch. Ind. t. 31. f. 5. 6. 
646. honesta Gould. — Conch. Ind. t. 90. f. 10. 
; S. 33. 
656. retrorsa Gould. — Conch. Ind. t. 25. f. 6. 
659. trifasciata Chemmn. — Conch. Ind. t. 134. f. 4. 
g. 34. 
Gonch) Ind. d: 887 b 7238: 
Conrch. Dád. £;30. T. 4. 
663. Uter ''heob. 
665. anceps Gould. 
S. 35. 
685*, H, Gayndahensis Brazier. T 
«Testa minute umbilicata, depressa, tenuis, vitrea, lute- 
scenti- cornea, oblique rugoso-striata; anfr. 5 planulati, supra 
medium acute carinati (carina supra suturam usque ad apicem 
leviter elevatum conspicua), subtus omnino laeves; apertura 
