96 HELIX §.19. 



angulata; perist, simplex, acutum, margine dextro superne 

 arcuato, columellari tenui, verticali, breviter reflexo. — Diam. 

 maj. 6, min. 5, alt. 8^3 mill. (Mus. Bens.) 



Helix petrohia Bens. in Ann. and Mag. 2 d. ser. VII. I85I. p. lOii. 



— — Chemn. ed. II. Helix N. 923. t. 141. f. 25 — 27. 



Habitat sub lapidibus, prope Higli-Constantia Promontorii Bonae 

 Spei. 



407. H. rariplicata Benson. 



T. umbilicata, depressa, tenuis, cornea , plicis arcuatis 

 subdistantibus munita; spira parum elevata; sutura profunda; 

 anfr. 4 convexi, ultimus teres, non descendens; umbilicus an- 

 gustus, pervius; apertura parum obliqua, lunato-subcircularis; 

 perist. simplex, rectum, marginibus conniventibus. — Diam. 

 maj. 41/4, min. 31/2, alt. 2 mill. (Goll. x\r. 182.) 

 Helix rariplicata Bens. in litt. 



— — Pfr. in Zeitschr. f. Malak. 1849. p. 71. 



— — Bens. in Ann. and Mag. 2 d. ser. VI. p. 254. 



— — Chemn. ed. II. Helix N. 824. t. 129. f. 31—33. 



— — (Patula) Albers Helic. p. 64. 



Habitat in Promontorio Bonae Spei: «GreenPoint, Lighthouse» 

 (Benson). 



408. H. sabuletorum Benson. 



T. umbilicata, orbiculato-depressa, solidiuscula, utrinque 



confertissime striata, plicisque arcuatis distantioribus notata, 



non nitens, pallide cornea; spira convexiuscula, apice obtusa; 



sutura profunda; anfr. 47^ — 5 lente accrescentes, convexi, 



ultimus rotundatus; umbilicus latiusculus (fere V^ diametri 



testae), profundus; apertura vix obliqua, lunato-rotundata; 



perist. simplex, marginibus conniventibus, columellari breviler 



subreflexo. — Diam.^maj. 41/2, min. 4, alt. 2 mill. (Goll. Nr. 183.) 



Helix sabuletornm Bens. \n Ann. and Mag. 2d. ser. VII. 1851. 



p. 105. 



_ _ Chemn. ed. IL Hellx N. 968. t. 147. f. 16. 17. 



Habitat ad «Hout-Bay, Strand » non procul a vico Somerset, 



et ad Kalk-Bay Promontorii Bonae Spei, in arenosis prope lit- 



tora maris. 



400. mutata Gould. •{• (Proc. Bost. Soc. 1846. p. 167.) Mon. I. p. 100. 



410. radieila Pfr. (Coll. 184. — Chemn. ed. nov. II. 



p. 132. — Patiila Alb. p. 65. — Hel. pardalina 

 Desh. in F6r. hist. I. p. 88. N. 120. — Helicella 

 uiululala Fer. Mus.) - - - 100. 



411. costellata Orb. (Coll. 185.) - - - 101. 



412. lyrata Couth. -J- [Gould in Proc. Bost. Soc. 184 6. 



p. 167; E.xped. shells 1851. p. 39. f. 34.) . . . - - - 101. 



