30 UELIX ,^. 3. 



inlus margaritacea; perist. simplex, acutum, marginibus con- 

 vergentibus, columellari filiformi, albido, polito, subverticali, 

 leviter arcuato, intrante. — Diam. maj. 197^, min. 17, alt. 

 UV2 mill. (Mus. Benson.) 



Helix Trotteriana Bens. in Ann. and Mag. 2 d. ser. II. 18 48. 

 p. 161. 



— — Cheinn. ed. II. Helix N. 932 t. 143. f. I.'2. 

 ?labi{at prope Uitenhage Africae meridionalis (Trotter). 



26. depicta Grat. •{• Mon. 1. p. 27. 



27. H. munda Adams. 



T. imperforata, depresso-globosa, tenuis, subtilissime stria- 

 tula, albida, epidermide tenui, non nitente, fuscescente induta; 

 spira parum elevata, obtusiuscula; anfr. 5 vix convexiusculi, 

 lente accrescentes, ultimus subdepressus, antice non descen- 

 dens; columella obliqua, stricta, planata; apertura obliqua, 

 lunato-rotundata; perist. simplex, tenue, acutum, cum colu- 

 mella angulum obtusum formans. — Diam. maj. liVa? min. 12, 

 alt. 9 mill. (Mus. Guming.) 



Helix munda Adams Contrib. to Conchol. N. 2. p. 32. 



— — Che?nn. ed. II. Helix N. 679 e. t. 108. f. 21. 22. 



Habitat in insula Jamaica. 



Obs. Differt ab H. tenerrima Ad. lorma depressiore, anfractibus 

 lentius accrescentibus, ultimo depresso, apertura minore, magis obli- 

 qua, etc. 



28. tenerrima Adams. (Coll. M. — Chemn. ed. nov. 



I. p. 230. — Parthena Alb. p. 112.) Mon. I. p. 28. 



29. H. columellata Adams. •{• 



T. imperforata, superne convexo-conica, irregulariter strin- 

 tula (interdum microscopice multipunctata), sub epidermide 

 lutescente vel virenti-fusca alba; apex subacutus; spira valde 

 elevata, fere conica; anfr. fere 6, modice convexi, obtuse sub- 

 humerosi {(.^obtusely a little shouldered))), ultimus supra njedium 

 subplanatus, basi subconvexus, non impressus; aperlura 

 sphaerico-triangularis; perist. acutum; columella valde oblique 

 producta, curvata, crassa , abrupte terminata, opaca, alba. — 

 Diam. m,.j. 0,63, min. 0,56, alt. 0,47 poll. (Ad.) 



Helix columellata Adams Contrib. to Conchol. N. 5. p. 80. 

 Habitat in insula Jamaica. 



Obs. «Speeies hucusque cum H. ienerrima confusa.» 



