48 IIELIX §. 20. 



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

 latlssime lunari; perist. simplici, margine columellari leviter 

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



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

 Habitat in insulis Philippinis (H. Cuming). 



273. H. inornata Say. 



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

 corneo-Iutescens; spira parum clevata, vertice subtili; anfr. 5 

 convcxiusculi, ad suturam striatuli, sensim accrescentes, ulti- 

 mus non descendens; aperlura vix obliqua, oblique lunaris, 

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

 subconvergentibus, columellari superne subdilatato, patenle. — 

 Diam. maj. 1G, min. 13, alt. 7 mill. (Coll. Nr. 106.) 

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



— — Bi7i7l. in Bost. Journ. III. p. 419. t. 21. f. 3! 



— — Bi7i7i. Teir. Moll. II. p. 227. t. 3 4. 



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



— — Say Descr. ed. W. G. Biimey p. 2 4. 

 Helicella hioi^nata H. ei A. Ada^ns Gen. II. p. 118. 



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

 Binney). 



274. calamechroa Jon. (Coll. 107. — Cft. ed. nov. III. 



p. 319. — Rv. n. 1231. t. 179. — Nanina cala- 

 mechroa Graij Gat. Puhn. p. 1 37. — Macrochlamys 

 .'!(/. Gen. p. 224. — Rhyssota Pfr. Vers. p. )2t.) iMon. III. p. 6*. 



275. subfusca Beck. (Ch. ed. nov. II. p. 277. — Rv. 



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

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



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



270. russeola Mor. •{• - - - 63. 



277. H. demissa Binney. 



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

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

 nuto mucronata; anfr. 6V2 convexiusculi, lente accrescentes, 

 ultimus non descendens, basi medio impressus; apertura parum 

 obiiqua, lunaris; perist. simplex, rectum, marginibus remotis, 

 basali subrectilineari, columellari declivi, breviter reflexo. — 

 Diam. maj. IIV2 — I2V2, min. ^0^^ — ^^%, olt- 6 — 7 mill. 

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



Helix de^nissa Binn., Pfr. Mon. 1. p. 58. n. 121. 



_ __ Bi7m. Terr. Moll. II. p. 2 32. t. 42. f., 1. 



_ _ Reeve Conch. ic n. 1491. l. 210. 



