HELIX §. 123. 309 



1979. H. triodonta Orbigny. 



T. umbilicata, conoideo-semiglobosa, solida, striatula, ca- 

 stanea; spira conoideo-convexa, obtusa; anfr. Sy^ convexiusculi, 

 ultimus antice deflexus, periplieria subacute carinatus, basi mal- 

 leatQS, circa umbilicum angustum inflatus, antice constrictus; 

 apertura perobliqua, late lanaris; perist. album, incrassatum, 

 reflexum, marginibus callo elevato junctis, dextro intas biden- 

 tato, basali medio tuberculo obtuso munito. — Diam. maj. 41, 

 min. 35, alt. 21 mill. (Mus. Brit.) 



Helix triodonta Orh., Pfr. Mon. Hellc. I. p. 407. n. 1060. 



— — Reeve Conch. ic. n. 1485. t. 209. 



— — (Isomeria) Pfr. Vers. p. 139. 



Habitat prope Guayaquil Columbiae. 



1980. subcastanca Pfr. {Ri\ n. 543. t. 99. — I.someria 



Pfr. Vers. p. 139. — Carocolla ylobosa Brod.) . . Mon. I. p.40l. 



1981. Hartwcgi Pfr. {Ro. n. 575. t. -104. — Isomerla 



Pfr. Yers. p. 139. — Lucerna Hartiv. [Obba] Ad. 



Gen. p. 20-2.) - -- 403, 



198-2. fuscolabris Ad. (Goll. 1046. — Ck. ed. nov. III. 



p. 466. t. 136. f. 24. 23. — Pleurodonta Pfr. Vers. 



p. 140. — Lucerna fuscolabris Ad. Gen. p. 199.) - III. - 238. 

 1983. anomala Pfr. (Coll. 1047. — Rv. n. 246. t. 51. — 



Ch. ed. nov. II. p. 279. — Pleurodonta Pfr. Vers. 



p. 140. — Lucernn anomala Ad. Gen. p. 199.) . . - - - 238. 



1984. H. pallesccns Shuttleworth. 



T. aperte umbilicata, subdepressa, solida, undique distincto 

 granulata, opaca, paliide fulva; spira parum elevata, obtusa; 

 anfr. o convexi, lente accrescentes, ultimus supra medium cari- 

 nalus, antice subito perdeflexus, infra carinam valde constrictus 

 et profunde triscrobiculatus (sulco quarto in umbilicum intrante), 

 basi tumidus; umbilicus conicus, fere y^ diametri aequans; 

 apertura fere horizontalis, piriformis; perist. continuum, libe- 

 rum, undique expansum et reflexum, carneum, margine basali 

 dentibus 4 compressis, subparallelis munito. — Diam. maj. 28, 

 min. 22 V2, alt. 13 mill. (Mus. Cuming.) 



Helix pallescens Shiittl. in Mus. Cuming. 

 Habitat in insula Jamaica. 



1985. sinuosa Fer. (Coll. 1048. — Ch. ed. nuv. II. 

 p. 279. t. 122. f. 14. 13. — Pleurodonla Pfr. Yers. 

 p. 140. — H. consancjuinea Ad., Pfr. Mon. III. 

 p. 259, ex speciminibus Chittyanis Musei Bri- 

 tannici.) Mou. III p. 2.39. 



