48 HELIX §. 20. 



anfr. 4 plano-convexis, ultimo multo majore, inflato; apertura 

 latissime lunari; perist. simplici, margine columellari leviter 

 reflexo. » (Rv.) Dimensionibus similis praecedenti. (Ex icone. ) 



Helix sarcodes Reeve Concli. ic. n. 146. t. 3 4. 

 Habitat in insulis Philippinis (H. Cuming). 



273. H. inornata Say. 



T. perforata, orbiculato-depressa, laevigata, nitida, pallide 

 corneo-lutescens; spira parum elevata, vertice subtili; anfr. 5 

 convcxiusculi, ad suturam striatuli, sensim accrescentes, ulti- 

 mus non descendens; apertura vix obliqua, oblique lunaris, 

 intus albo-callosa; perist. simplex, rectum, acutum, marginibus 

 subconvergentibus, columellari superne suljdilatato, patente. — 

 Diam. maj. 16, min. 13, alt. 7 mill. (CoII. Nr. 106.) 

 Helix inornata Say, Pfr. Mon. I. p. 8 4. n. 201. 



— — Binn. in Bost. Journ. III. p. 419. t. 21. f. 3! 



— — BiJin. Terr. Moll. II. p. 227. t. 34. 



— — Reeve Conch. ic. n. 666. t. 116?? 



— — Say Dcscr. ed. W. G. Binney p. 2 4. 

 Helicella inornata H. et A. Adams Gen. II. p. 118. 



Habitat in parte septentrionali Statuum Unitorum: Ohio (W. G. 

 Binnev). 



27i. calamechroa Jon. (Coll. 107. — C/i. ed. nov. III. 

 p. 319. — Bv. n. 1231. t. 179. — Nanma cala- 

 mechroa Gray Gat. Pului. p. 137. — Macrochlamys 

 Ad. Gen. p. 224. — Rhyssota Pfr. Vers. p. 121.) Mon. III. p. 62. 



275. subfusca Beck. {Ch. ed. nov. n. p. 277. — Rv. 



n. 1324. t. 189. — Vitrina subfusca Beck. — 

 Nanina siibfusca Gray Cat. Pulm. p. 103. — 

 Xesta Pfr. Vers. p. 120.) - - - 62. 



276. russeola Wlor. •}• - - - 63. 



277. H. dcmissa Binney. 



T. perforata, convexo-depressa, tenuiuscula, minute striata, 

 mb epidermide nitida, luteo-cornea albida; spira convexa, mi- 

 .juto mucronata; anfr. 67^ convexiusculi, lento accresccntes, 

 ultimus non descendens, basi medio impressus; apertura parum 

 obliqua, lunaris; perist. simplex, rectum, marginibus rcmotis, 

 basali subrectilineari, columellari declivi, breviter reflexo. — 

 Diam. maj. IIV2 — 12^2, min. IOV2 — IIV2, alt. 6 — 7 mill. 

 (Mus. Cuming. et Coll. Nr. 108.) 



Helix demissa Binn., Pfr. Mon. I. p. 58. n. 121. 



_ _ ]]i7l7i. Terr. 3Ioll. II. p. 232. t. 42. f. 1. 



— — Reeve Conch. ic. n. 1491. t. 210. 



